DP2537-08B-CM

GEO M6 – MSUB12
GEO M620 & GEOM6B
Tangent Array Modules
MSUB12 Subwoofer

System manual

System Manual GEOM6 MSUB12

CONTENTS

CONTENTS
PLEASE READ CAREFULLY BEFORE PROCEEDING ................................................................................................... 5
1

INTRODUCTION .......................................................................................................................................................... 72
GEO M6 GENERAL SET-UP INSTRUCTIONS ........................................................................................................ 8
2.1
GEO M620, GEO M6B AND MSUB12 CONNECTIONS ........................................................................................................ 8
GEO M620 connectors ........................................................................................................................................................................... 8
GEO M6B connectors ............................................................................................................................................................................. 8
MSUB12 connectors ............................................................................................................................................................................... 8
MSUB12-I connectors ............................................................................................................................................................................ 9
2.2
CABLING ......................................................................................................................................................................................11
2.3
GEO M620, GEO M6B AND MSUB12 RECOMMENDED AMPLIFICATION ......................................................................11
2.4
GEO M6 AND MSUB12 SETUPS ON NEXO TD CONTROLLERS ........................................................................................11
3
CONNECTION DIAGRAMS ...................................................................................................................................... 12
3.1
GEO M620 & MSUB12 / DTDCONTROLLER & DTDAMP4X0.7 .................................................................................12
3.2
GEO M620 & MSUB12 / DTDCONTROLLER & DTDAMP4X1.3 .................................................................................13
3.3
GEO M620 / NXAMP4X1MK2 (4 CHANNELS MODE) ......................................................................................................14
3.4
GEO M620 & GEO M6B / NXAMP4X1MK2 (4 CHANNELS MODE) ..............................................................................15
3.5
MSUB12 OMNI MODE / NXAMP4X1MK2 (4 CHANNELS MODE) ...................................................................................16
3.6
MSUB12 CARDIO MODE / NXAMP4X1MK2 (4 CHANNELS MODE) ...............................................................................17
3.7
GEO M620 & MSUB12 / NXAMP4X1MK2 (4 CHANNELS MODE) ...............................................................................18
3.8
GEO M620 / NXAMP4X2MK2 (4 CHANNELS MODE) ......................................................................................................19
3.9
GEO M620 & GEO M6B / NXAMP4X2MK2 (4 CHANNELS MODE) ..............................................................................20
3.10 MSUB12 OMNI MODE / NXAMP4X2MK2 (4 CHANNELS MODE) ...................................................................................21
3.11 GEO M620 & MSUB12 / NXAMP4X2MK2 (4 CHANNELS MODE) ...............................................................................224

NS-1 SIMULATION SOFTWARE ........................................................................................................................... 23

5
CONFIGURABLE DIRECTIVITY DEVICE ............................................................................................................ 24
5.1
INSTALLING & REMOVING GEO’S CONFIGURABLE DIRECTIVITY FLANGES ......................................................................24
5.2
WHEN & WHERE TO USE CONFIGURABLE DIRECTIVITY FLANGES.....................................................................................24
6
GEO M6 HARDWARE SETUP PROCEDURE ...................................................................................................... 25
6.1
SAFETY FIRST..............................................................................................................................................................................25
Flown systems safety .......................................................................................................................................................................... 25
Ground stacking safety ...................................................................................................................................................................... 26
Contacts .................................................................................................................................................................................................... 26
6.2
GENERAL DESCRIPTION ............................................................................................................................................................27
GEO M6 “Left” and “Right” configuration ................................................................................................................................. 27
GEO M6 modules rigging system ................................................................................................................................................... 27
MSUB12 and MSUB12-I rigging system..................................................................................................................................... 28
Permanent installation variant ..................................................................................................................................................... 28
Accessories............................................................................................................................................................................................... 29
Warnings on GEO M6 and MSUB12 accessories .................................................................................................................... 30
6.3
GROUND STACK SETUPS ............................................................................................................................................................31
Described configurations .................................................................................................................................................................. 31
GEOM6 only on GMT-BUMPER....................................................................................................................................................... 32
MSUB12 and GEO M6 with Ministack adaptor....................................................................................................................... 33
MSUB12 and GEO M6 on Touring Bumper ............................................................................................................................... 35
GEO M6 stacked on LS18 .................................................................................................................................................................. 38
1 to 3 (maximum) GEO M6 pole mounted ................................................................................................................................ 40
6.4
FLOWN CLUSTERS SETUPS ........................................................................................................................................................42
Described configurations .................................................................................................................................................................. 42
GEO M6 only flown with GMT-BUMPER .................................................................................................................................... 43
Variant with maximum 3 GEO M6 and GMT-LBUMP .......................................................................................................... 47
GEO M6 only flown with VNT-BUMPM6 .................................................................................................................................... 48
MSUB12 only flown with VNT-BUMPM6 ................................................................................................................................... 52
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System Manual GEOM6 MSUB12

CONTENTS

MSUB12 and GEO M6 flown with VNT-BUMPM6 .................................................................................................................. 54
4 to 12 (maximum) GEO M6 ceiling mounted......................................................................................................................... 58
1 to 3 (maximum) GEO M6 wall mounted ................................................................................................................................ 59
1 to 3 (maximum) GEO M6 ceiling mounted ........................................................................................................................... 60
MSUB18-I and GEO M6 flown with VNI-LNKM61018 .............................................................................................. 61
6.5
PERMANENT INSTALLATION VARIANT ...................................................................................................................................65
6.6
TESTING AND MAINTENANCE OF THE SYSTEM .....................................................................................................................67
7
SYSTEM CHECK ALIGNMENT GUIDELINES ...................................................................................................... 68
7.1
GEO M6 VERTICAL CLUSTER DESIGN ....................................................................................................................................68
7.2
STACKED MSUB12S AND FLOWN GEO M6 .........................................................................................................................68
7.3
DRIVING THE MSUB12S FROM THE AUX SEND ..................................................................................................................69
7.4
RECOMMENDED INSTALLATION TOOLS AND EQUIPMENT ...................................................................................................69
7.5
GEO M6 – MSUB12 SYSTEM CHECK LIST............................................................................................................................70
8
TECHNICAL SPECIFICATIONS .............................................................................................................................. 71
8.1
MSUB12 SUBWOOFER .............................................................................................................................................................71
System specifications .......................................................................................................................................................................... 71
Dimensions .............................................................................................................................................................................................. 72
8.2
GEO M620 MODULE ................................................................................................................................................................73
System specifications .......................................................................................................................................................................... 73
Dimensions .............................................................................................................................................................................................. 74
8.3
GEO M6B MODULE ..................................................................................................................................................................75
System specifications .......................................................................................................................................................................... 75
Dimensions .............................................................................................................................................................................................. 76
8.4
GEO M6 AND MSUB12 ACCESSORIES ..................................................................................................................................77
VNT-BUMPM6 ........................................................................................................................................................................................ 77
VNT-EXBARM6 ...................................................................................................................................................................................... 78
GMT-BUMPER ........................................................................................................................................................................................ 79
GMT-EXBAR ............................................................................................................................................................................................ 80
GMT-LBUMP ........................................................................................................................................................................................... 81
GMT-BPDAPT-2 ..................................................................................................................................................................................... 82
GMT-LBPADPT....................................................................................................................................................................................... 83
VNT-POLE ................................................................................................................................................................................................ 84
VNT-XHBRK ............................................................................................................................................................................................ 85
VNT-TCBRK .................................................................................................................................................................................. 86
VXT-BL515.................................................................................................................................................................................... 87
VXT-BL615.................................................................................................................................................................................... 88
VNT-MNSTKM6 .......................................................................................................................................................................... 89
GMT-FLG ....................................................................................................................................................................................... 90
VNI-WS15...................................................................................................................................................................................... 91
VNI-FIXBUMPM6 ....................................................................................................................................................................... 92
GMI-BNFIX.................................................................................................................................................................................... 93
GMI-IPCOV .................................................................................................................................................................................... 94
VNI-LNKM61018 ....................................................................................................................................................................... 95
GMT-6CASE .................................................................................................................................................................................. 96
MST-2CASEMSUB12................................................................................................................................................................. 97
9

GEO M6 & MSUB12 MODULES & ACCESSORIES LIST ................................................................................... 98

10 USER NOTES ............................................................................................................................................................101

System Manual GEOM6 MSUB12

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PLEASE READ CAREFULLY BEFORE PROCEEDINGGEO Technology is radically new thinking
The GEO R&D Project has, to date, resulted in the following patent applications:
The GEO Hyperboloid Reflective Wavesource™ differs radically from the megaphone-variant type horns you know and love (orhate). “Tried and true” methods will produce entirely unexpected results. HRW technology produces precise and predictable
results.
The Configurable Directivity Flange. A waveguide that allows the operator to alter its behaviour. An unprecedented NEXO
development that is easy to use – once you know how and when.
The Phase Directivity Device needs no operator input to function, but it is reassuring to know that the coupling of the midrangeof the system is considered as important as the high frequencies…
DSP-driven Directional Sub-bass devices are a new approach to controlling LF/VLF acoustic energy.
GEO is not hard to use when you understand how…
The technology behind GEO is revolutionary, but it is grounded in years of practical experience with the problems of deliveringhigh quality professional sound to large audiences at high SPL levels. The GEO toolbox includes NS-1 - a simple yet powerfuland highly predictive design tool. The array assembly system is keyed to the design software and will easily enable you to
deploy your design with great precision. NEXO Digital TDcontroller technology provide driver protection and system optimization
for the GEO M and MSUB series.
GEO is a high precision system
The GEO HRW™ controls acoustic energy more precisely than other multiple element waveguides. It also makes GEO lessforgiving of mistakes. Whilst conventional horns never combine into a coherent array, they may deliver acceptable results even
if the design and deployment of the system is less than optimal. This is not the case with GEO where careless installation
produces catastrophic results.
A GEO Tangent Array is not a “line array”
GEO Technology is equally effective in designing and deploying tangent curved vertical arrays. For best results in a specificapplication the user needs to know how multi-speaker arrays interact with audience geometry, along with the benefits anddrawbacks of curved vertical arrays and horizontal arrays.
Curved tangent arrays require different design techniques
In the past, sound reinforcement professionals have worked with horizontal arrays that use conventional horns to deliver [moreor less] ‘equal power to equal angles’. Curved vertical arrays are now designed to deliver [more or less] equal power to equalareas’. When arrays use conventional horns, the lack of precision, overlap and interference masks errors in array design andaiming. The highly precise GEO wavesource responds accurately, consistently and predictably to the design and deploymentof a curved vertical tangent array. This is why the GEO rigging system is designed to control angular splay to 0.1° precision.
GEO curved tangent arrays require different operational techniques
Over the years, system designers and operators have developed a number of signal processing techniques to disguise andpartly overcome the limitations of horn design. “Frequency shading,” “amplitude shading,” “High Frequency compensation”, allof these are tools of the advanced sound system operator. NONE OF THESE TECHNIQUES ARE APPLICABLE TO GEOTANGENT ARRAYS. Instead of enhancing the array’s performance they will severely degrade it.
Take time to learn how to get great results with GEO Technology. It is an investment that will pay off in more satisfied clients,
more efficient operating procedures and more recognition for your skill as a sound system designer and operator. A
comprehensive understanding of GEO theory, tangent arrays, and specific features of the GEO M Series will help you to operate
your system at its full potential.

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System Manual GEOM6 MSUB12PLEASE READ CAREFULLY BEFORE PROCEEDING

PLEASE READ CAREFULLY BEFORE PROCEEDING
BASIC PRECAUTIONS
Do not open the speaker system or attempt to disassemble the internal parts or modify them in any way. The speaker system
contains no user-serviceable parts. If it should appear to be malfunctioning or damaged, discontinue use immediately and haveit inspected by qualified NEXO service personnel.
Water exposure: Do not expose the speaker system to direct rain, do not use it near water or in wet conditions. Do not place
containers with liquid on speaker system as they might spill into openings. If any liquid such as water seeps into the speakersystem, have it inspected by qualified NEXO personnel.
Sun exposure: Do not expose the speaker system to direct sun.
Operating temperature with temperate climate: 0°C to +40°C (-20°C to +60°C for storage).

SYSTEM DEPLOYMENT SAFETY RULES
Read User Manual before deployment. Before use of enclosed speaker system, please ensure that anyone
involved in system deployment understands the rigging – stacking – pole mounting safety rules as describedin the speaker system User Manual. Failure to do this exposes people to potential injury or death.
Please check the web site nexo-sa.com for the latest update.
Always consult qualified NEXO personnel if the device installation requires construction work and make sure to observe thefollowing precautions:
Mounting precautions-

choose mounting hardware and an installation location that can support 4 times the weight of the speaker system;-

do not use speaker system handles for suspended installation;-

do not expose speaker system to excessive dust or vibration, or extreme cold or heat to prevent possibility of component
damage;-do not place the speaker system in an unstable position from which it might fall accidentally;-

if speaker systems uses a stand, ensure that stand specifications are adapted, and that stand height does not exceed
1.40m/55”; never move the stand while the speaker is in position.

Connection and powering precautions-

remove all connected cables before moving the speaker system;-

the connection should be performed by qualified technician;-turn off AC power of all power amplifier units before connecting the speaker system;-

when turning on the AC power to the audio system, always turn on the power amplifier last; when turning the AC power off,
always turn off the power amplifier first;-

when used in cold conditions, a gradual power ramp up should applied to the system on an 5 mn period to allow theloudspeaker components to stabilize during the very first minutes of usage.

Inspect the speaker system periodically.

System Manual GEOM6 MSUB12

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PLEASE READ CAREFULLY BEFORE PROCEEDINGHIGH SOUND PRESSURE LEVELS
Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably
in susceptibility to noise-induced hearing loss but nearly everyone will lose some hearing if exposed to
sufficiently intense noise for a sufficient period of time. The U.S. Government’s Occupational and HealthAdministration (OSHA) has specified the following permissible noise level exposures: Sound Duration Per

Day In Hours

Sound Level dBA, Slow Response

8

90

6

92

4

95

3

97

2

100

1½

102

1

105

½

110

¼ or less115

According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs orprotectors to the ear canals or over the ears must be worn when operating this amplification system in order to prevent
permanent hearing loss, if exposure is in excess of the limits as set forth above. To ensure against potentially dangerous
exposure to high sound pressure levels, it is recommended that all persons exposed to equipment capable of producing highsound pressure levels such as this amplification system be protected by hearing protectors while this unit is in operation.

DISPOSAL OF OLD ELECTRICAL & ELECTRONIC EQUIPMENT
This symbol on the product or on its packaging indicates that it shall not be treated as household waste.
Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronicequipment. By ensuring this product is disposed of correctly, you will help prevent potential negative
consequence for the environment and human health, which could otherwise be caused by inappropriate
waste handling of this product. The recycling of materials will help to conserve natural resources. For moredetailed information about recycling of this product, please contact your local city office, your household
waste disposal service or the shop where you purchased the product.

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System Manual GEOM6 MSUB12

INTRODUCTION

1INTRODUCTION
Thank you for selecting a NEXO GEO M6 Series Tangent Array System. This manual is intended to provide you with necessary
and useful information about your GEO M6 & MSUB12 System, which includes the following products:•

GEO M620 is a 20° Tangent Array Module. It comprises 1x6.5” (17cm) 8
ohms LF/MF driver and 1x1.5” voice coil, 1” Throat 16 Ohm HF Driver
loaded by a 15° Hyperboloid Reflective Wavesource™.

•

GEO M6B is a Bass-Mid Reinforcement module for GEO M620. It
comprises 1x6.5” (17cm) 8 ohms LF/MF driver ™.

•

MSUB12 is GEOM6 companion subwoofer. It comprises 1x12" (30cm)
very long excursion Neodymium driver and features very high efficiency
as well as high acoustic output. MSUB12 has fittings for transporting,flying and stacking. MSUB12 is available in touring and installation
versions.

•

A full range of accessories provides safe, flexible and simple means of
installing GEO M6 and MSUB12 in fixed installation as well as in touring
applications.

•

GEO M6 and MSUB12 are controlled, powered and monitored by NEXO
TDcontrollers. For a complete description of these controllers, pleaserefer to User Manuals. NEXO TDcontrollers DSP algorithms andparameters are fixed in software and updated regularly: Please consult
the NEXO web site (nexo-sa.com) for the latest software releases.

•

NS-1 simulation software assists in the design and implementation ofvertical tangent GEO arrays. Please consult the NEXO web site (nexosa.com) for the latest software releases.

•

Available for Mac, iPad and iPhone, NEXO NeMo provides full remotecontrol over a digital audio network from anywhere in the venue, thanks
to an intuitive and graphically attractive user interface. NeMo is available
on Apple App Store.

Please devote your time and attention to reading this manual. A comprehensive understanding of GEO M6 and MSUB12 specificfeatures will help you to operate your system at its full potential.

System Manual GEOM6 MSUB12

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GEO M6 GENERAL SET-UP INSTRUCTIONS

2

GEO M6 GENERAL SET-UP INSTRUCTIONS

2.1

GEO M620, GEO M6B and MSUB12 connections
GEO M620, GEO M6B and MSUB12 are connected with Speakon NL4FC plugs (not supplied). A wiring diagram is printed on
the connection panel located on the back of each cabinet. The 4 pins of the Speakon sockets identified in / out are connectedin parallel within the enclosure.
Either connector can be used to connect amplifier or to link to an additional GEO M6 cabinet or to link to an optional GEO M6B
or MSUB12 (if present). Therefore, a single 4-conductor cable can connect two amplifier channels to various GEO M620s and/or
GEO M6B or MSUB12.

GEO M620 connectors

Speakon Connector

M620

1(-)

Through1(+)

Through2(-)

GEO M620 (-)2(+)

GEO M620 (+)

Speakon Connector

M620

GEO M6B connectors

1(-)

GEO M6B (-)1(+)

GEO M6B (+)2(-)

Through2(+)

Through

MSUB12 connectors
MSUB12 features 2 connector panels with 2 Speakon NL4 each so that cabling is always done at the back independently of
cabinet being set frontwards or rearwards for cardioid configurations.

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Speakon Connector

MSUB12

1(-)

MSUB12 (-)1(+)

MSUB12 (+)2(-)

Through2(+)

Through

System Manual GEOM6 MSUB12

GEO M6 GENERAL SET-UP INSTRUCTIONSMSUB12-I connectors
MSUB12-I is supplied with a fixed cable (HO7ZZ-F), 2x2.5mm2 section, length 4m, outside diameter 11.5mm ±1.5mm.
MSUB12-I is delivered with the connection plate with 2 cable glands (clamping range, Ø 10 to 14mm) at the back of the
subwoofer, but you can also position it at the front.

CONNECTION PLATE AT THE BACK-

Remove the back connection plate with the cable glands.

-

Place the provided back plate (with no holes).

-Remove the cable glands from the back connection plate.

CONNECTION PLATE AT THE FRONT

System Manual GEOM6 MSUB12

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GEO M6 GENERAL SET-UP INSTRUCTIONS-

Assemble the cable glands on the provided front connection plate.

-

Remove the front grille.

-

Remove the front connection plate (with no holes).

-Place the front connection plate (with cable glands) on the grille.

-

Pass the cable through the lower left vent (from the WAGO connector to the cable gland).

-Reassemble the front grille.

To connect a second cable:-

Remove the front grille.

-

Remove the driver.

-

Wire the provided connector WAGO 4pt.

-

Plug it to the free connector.

-

Pass the cable through the cable-gland.

-

Tight the cable-gland.

-

Reassemble the driver and the front grille.

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System Manual GEOM6 MSUB12

GEO M6 GENERAL SET-UP INSTRUCTIONS

2.2

Cabling
NEXO recommends the exclusive use of multi-conductor cables to connect the system: the cable kit is compatible with all thecabinets, and there is no possible confusion between LF, MF and HF sections.
Cable choice consists mainly of selecting cables of the correct sectional dimension (size) in relation to the load resistance andthe cable length. Too small a cable section will increase both its serial resistance and its capacitance; this reduces the electrical
power delivered to the loudspeaker and can also induce response (damping factor) variations.
For a serial resistance less or equal to 4% of the load impedance (damping factor = 25), the recommended cable length is given
by:
S in mm2, Z in Ohm, Lmax in meters

Lmax = Z x S

The table below indicates these values, for 3 common sizes.
Load Impedance ()2

2.6

Cable section

4

5.3

8

16

12m/39ft

24m/79ft

Recommended Cable Length

1,5 mm² (AWG #15)

3m/10ft

3m/13ft

6m/20ft

8m/26ft

2,5 mm² (AWG #13)
4 mm² (AWG #11)

5m/16ft

7m/23ft

10m/33ft

13m/44ft

20m/66ft

40m/131ft

8m/26ft

10m/33ft

16m/52ft

21m/70ft

32m/105ft

6 mm2 (AWG #9)64m/210ft

12m/40ft

16m/52ft

24m/79ft

32m/104ft

48m/160ft

96m/315ft

Maximum allowed length is 4 times recommended length.
Example:GEO M6 module has a 8  nominal impedance. When connecting 4 modules in parallel, total load impedance become 2.
Recommended length for 4mm2 / (AWG#10) is 8 m / 26 ft, maximum allowed length is 32 m / 105 ft.

IMPORTANTLong speaker cables induce capacitive effects – up to hundreds of pF depending on the quality of thecable - with a low-pass effect on high frequencies. If long speaker cables must be used, ensure that they
do not remain coiled while in use.

2.3

GEO M620, GEO M6B and MSUB12 recommended amplification
NEXO TD Controllers

Recommended amplification

DTD Controller + DTDAMP4x0.7 (4x0.7 kW/4)2 x GEO M620 per channel
2 x GEO M6B per channel

DTD Controller + DTDAMP4x1.3 (4x1.3 kW/4)2 x GEO M620 per channel
2 x GEO M6B per channel
1 x MSUB12 per channel

NXAMP4x1mk2 Powered Controller 4 channels mode (4x1.3kW/2)3 x GEO M620 per channel
3 x GEO M6B per channel
2 x MSUB12 per channel

NXAMP4x2mk2 Powered Controller 4 channels mode (4x2.5kW/2)4 x GEO M620 per channel
4 x GEO M6B per channel
3 x MSUB12 per channel

1 x MSUB12 per channel

2.4

GEO M6 and MSUB12 setups on NEXO TD Controllers
Please consult nexo-sa.com for NEXO TD Controllers firmware information.

System Manual GEOM6 MSUB12

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CONNECTION DIAGRAMS

3
3.1

CONNECTION DIAGRAMSGEO M620 & MSUB12 / DTDController & DTDAMP4x0.7

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System Manual GEOM6 MSUB12

CONNECTION DIAGRAMS

3.2

GEO M620 & MSUB12 / DTDController & DTDAMP4x1.3

System Manual GEOM6 MSUB12

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CONNECTION DIAGRAMS

3.3

GEO M620 / NXAMP4x1mk2 (4 channels mode)

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System Manual GEOM6 MSUB12

CONNECTION DIAGRAMS

3.4

GEO M620 & GEO M6B / NXAMP4x1mk2 (4 channels mode)

System Manual GEOM6 MSUB12

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CONNECTION DIAGRAMS

3.5

MSUB12 Omni Mode / NXAMP4x1mk2 (4 channels mode)

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System Manual GEOM6 MSUB12

CONNECTION DIAGRAMS

3.6

MSUB12 Cardio Mode / NXAMP4x1mk2 (4 channels mode)

System Manual GEOM6 MSUB12

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CONNECTION DIAGRAMS

3.7

GEO M620 & MSUB12 / NXAMP4x1mk2 (4 channels mode)

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System Manual GEOM6 MSUB12

CONNECTION DIAGRAMS

3.8

GEO M620 / NXAMP4x2mk2 (4 channels mode)

System Manual GEOM6 MSUB12

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CONNECTION DIAGRAMS

3.9

GEO M620 & GEO M6B / NXAMP4x2mk2 (4 channels mode)

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System Manual GEOM6 MSUB12

CONNECTION DIAGRAMS

3.10 MSUB12 Omni Mode / NXAMP4x2mk2 (4 channels mode)

System Manual GEOM6 MSUB12

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CONNECTION DIAGRAMS

3.11 GEO M620 & MSUB12 / NXAMP4x2mk2 (4 channels mode)

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System Manual GEOM6 MSUB12

NS-1 SIMULATION SOFTWARE

4

NS-1 SIMULATION SOFTWARE
NS-1 software is a R&D simulation tool derived application. It processes measured speaker data with complex mathematicalalgorithms to assist the user in optimizing system design. Due to the complexity of the interaction of multiple cabinets, it is simply
not possible to reliably design curved vertical arrays without using the processing power of a computer to predict the optimumarray structure for a given audience geometry. The design logic is far more complex than looking at a section drawing of thevenue, measuring the overall angle needed to cover the audience from the cluster location, and dividing by 20 degrees todetermine the required amount number of GEO M620 cabinets.
NS-1 is an easy to use tool that allows to shape the energy leaving the cluster to fit the audience. It predicts pressure levels
radiated from the system to ensure enough cabinets are provided for the application, as well as mechanical constraints for safe
flown systems.
In addition, it provides mechanical information for all clusters in agreement with Structural Analysis Reports (available in theHelp section): dimensions, weight, gravity centre position, forces, moments, working load and safety factor.
NS-1 installation package includes all NEXO User Manuals, Structural Analysis Reports and Certificates PDF files.

NS-1 is a freeware available on nexo-sa.com
IMPORTANT
Never install a GEO M6 and/or MSUB12 cluster without checking its acoustical performances andmechanical safety in NS-1 prior to installation.
Any question or bug report please contact technical@nexo.fr

NS-1 GEO M6 ACOUSTIC PAGE

System Manual GEOM6 MSUB12

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CONFIGURABLE DIRECTIVITY DEVICE

5

CONFIGURABLE DIRECTIVITY DEVICEThe GEO Wavesource controls dispersion of acoustic energy using a hyperboloid acoustical reflector in the “coupling plane”(the vertical plane of a curved vertical tangent array) and a diffraction slot in the “non-coupling plane” (the horizontal plane of acurved vertical tangent array). The patented Configurable Directivity Device consists of flanges that alter the diffraction slot’s
exit flare rate.

5.1

Installing & removing GEO’s Configurable Directivity flanges
GEO M620 are shipped in the 80° dispersion configuration, 120° flanges is an optional accessory (GMT-FLG)
To change horizontal dispersion from 80° to 120° and vice-versa:

5.2-

Remove the front grill (TORX15, drawings below);-

Remove the 2 TORX screws per flange on each side of the GEO Waveguide (drawings below);-

Install or remove the 120° flanges with the 2 TORX screws-

Re-install the grid, being careful that the NEXO logo must be on the woofer side.

When & where to use Configurable Directivity flanges
The diagrams show audience area coverage for a stereo system. While a GEO cluster will deliver even SPL from the front to
the rear of this audience area, there are “holes” near the front in the centre and at the outside edges. We cannot fill the outside
coverage gaps without enlarging the centre gap, and vice versa (left figure below).
If 120° Configurable Directivity Devices are installed at the bottom cabinet of the clusters, coverage will look more like the patternin right figure below.

-6dB coverage, all GEO M620 in 80° configuration-6dB coverage, bottom GEO M620 in 120° configuration

In curved vertical arrays, the 120° Configurable Directivity Device can be used:-

On the bottom row of curved vertical arrays, to fill in coverage gaps in the front rows.

-

On all rows of curved vertical arrays, in cases where 120° of horizontal coverage is preferred to 80°.

IMPORTANT
Installing or removing one of the two flanges anticipating asymmetrical coverage will degrade bothcoverage and frequency response.

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System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

6

GEO M6 HARDWARE SETUP PROCEDURE
Before proceeding with assembly of GEO M6 and MSUB12 arrays, please ensure that the components are present andundamaged. A component list is appended to this manual. In the event of any shortage, please contact your supplier.
For maximum efficiency the GEO M6 and MSUB12 rigging system requires three experienced persons for set-up: typically, one
motor hoist operator, and one operator per side of the array. Good synchronisation and crosscheck between the operators are
key elements for a reliable and safe set-up.

6.1

Safety first
GEO M6 and MSUB12 Rigging System structural computations and related documents are available in NS-1 or at NEXO
(info@nexo.fr) upon request.
We include this section to remind you of safe practice when flying the GEO M6 and MSUB12 system. Please read it carefully.
However, user must always apply his or her knowledge, experience and common sense. If in any doubt, seek advice from yoursupplier or NEXO agent.
This manual offers guidance only for GEO M6 and MSUB12 loudspeaker systems. References in this manual to other rigging
equipment such as motor hoists, steels, shackles etc. are made to clarify the description of rigging procedures. The user mustensure that operators are properly trained by other agencies in the use of these items.
The GEO M6 and MSUB12 Rigging System has been optimised for the deployment of curved vertical arrays of GEO M6 andMSUB12 loudspeakers. Angle adjustment between cabinets has been limited to specific settings to ensure correct acoustic
coupling.
The GEO M6 and MSUB12 Rigging System is a professional precision tool set and should be handled with extreme care. Only
persons who are fully conversant with the operation of the GEO M6 and MSUB12 Rigging System and provided with suitablesafety equipment should deploy GEO Arrays. Misuse of the GEO M6 and MSUB12 Rigging System could lead to dangerous
consequences.
Used and maintained correctly, the GEO M6 and MSUB12 Rigging System will give many years of reliable service in portablesystems. Please take the time to read and understand this manual. Always use NS-1 to determine the optimum angle settings
for a particular venue, hang point and curved vertical GEO M6 and MSUB12 cluster. Applied forces and moments are strongly
cabinet quantity and angle configuration dependent. Cluster configuration must be implemented and validated in NS-1 prior to
installation.

Flown systems safety
Always inspect all the rigging components and cabinets for damage before assembly. Pay special attention to the lifting points,
and safety clips. If you suspect that any of the components are damaged or defective, DO NOT USE THE AFFECTED PARTS.
Contact your supplier for replacements.
Read this manual carefully. Also, be familiar with the manuals and safe working procedures for any ancillary equipment that will
be used with the GEO M6 and MSUB12 Rigging System.
Applied forces and moments are strongly cabinet quantity and angle configuration dependent. Cluster configuration must be
implemented and validated in NS-1 prior to installation.
Ensure that all local and National regulations regarding the safety and operation of flying equipment are understood and adhered
to. Information on these regulations can usually be obtained from Local Government Offices.
When deploying a GEO M6 and MSUB12 system always wear protective headwear, footwear and eye protection.
Do not allow inexperienced persons to handle a GEO M6 and MSUB12 system. Installation personnel should be trained inloudspeaker flying techniques and should be fully conversant with this manual.
Ensure that motor hoists, hoist control systems and ancillary rigging components are currently certified as safe and that they
pass a visual inspection prior to use.
Ensure that public and personnel are not allowed to pass beneath the system during the installation process. The work area
should be isolated from public access.
Never leave the system unattended during the installation process.
Do not place any object, no matter how small or light, on top of the system during the installation procedure. The object may fallwhen the system is flown and is likely to cause injury.
Secondary safety steels must be installed once the system has been flown to the operating height. Secondary steels must be
fitted irrespective of requirements of the local safety standards applicable to the territory.
Ensure that the system is secure and prevented from pivoting around the motor hoist.
Avoid any form of excessive dynamic loading to the assembly (structural computations on GEO M6 and MSUB12 Rigging
System are based on a 1/1.2 factor for hoist or motor acceleration).
NEVER attach any item to the GEO M6 and MSUB12 system other than the GEO M6 and MSUB12 accessories.

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

When flying outdoor systems ensure that the system is not exposed to excessive wind or snow loads and is protected fromrainfall.
In case of wind greater than 8 on Beaufort scale (72km/h – 45mph), a touring system has to be landed or an additional securing
has to be implanted.
For fixed installations, wind loading has to be taken into account in accordance to the national standards.
The GEO M6 and MSUB12 Rigging System requires regular inspection and testing by a competent test centre. NEXO
recommend that the system is load tested and certified annually or more frequently if local regulations require.
When de-rigging the system ensure that the same duty of care is given to the procedure as for the installation. Pack GEO M6
and MSUB12 components carefully to prevent damage in transit.

Ground stacking safety
Statistically, many more injuries occur due to unstable ground stacked PA systems than those associated with flown systems.
There are several reasons for this fact, however the message is clear:
Always survey the supporting structure upon which a ground stack is to be built. Always look beneath PA wings to inspect thedeck support and if necessary ask for the stage scrims and dressings be removed to allow access.
If the stage surface slopes, as it does in some theatres, ensure that the system is prevented from sliding forwards due tovibration. This may require the fitting of timber battens to the stage floor.
For outdoor systems ensure that that the system is protected from wind forces which might cause the ground stack to become
unstable. Wind forces can be huge, especially upon large systems, and should never be underestimated. Observe
meteorological forecasts, calculate the “worst case” effect upon the system prior to erection and ensure that the system issecured appropriately.
Take care when stacking cabinets. Always employ safe lifting procedures and never attempt to build stacks without sufficientpersonnel and equipment.
Never allow anyone, whether operators, artists or members of the public to climb onto a ground stacked PA system. Anyone
who needs to climb over 2m (6 ft) high should be fitted with suitable safely equipment including a clip-on harness. Please refer
to local Health and Safety legislation in your territory. Your dealer can help with advice on access to this information.
Apply the same attention to all safety matters when de-stacking systems.
Be aware that safety procedures are as important in the truck and in the warehouse as they are at the venue.

Contacts
Correct training is fundamental to safe practise when working with loudspeakers flying systems. NEXO recommend that users
contact local industry associations for information on specialist course.
Information for International training agencies can be obtained by contacting either:

The Production Services Association (PSA),
School Passage,
Kingston-upon-Thames,
KT1 SDU Surrey,
ENGLAND
Telephone: +44 (0) 181 392 0180
www.psa.org.uk/

Rigstar Training and Testing Center
82 Industrial Dr. Unit 4
Northampton, Massachusetts 01060 U.S.A.
Phone: 413-585-9869
www.rigstar.com/

ESTA
Entertainment Services & Technology
Association
875 Sixth Avenue, Suite 1005
NEW YORK, NY 10001 USA
Phone: 212-244-1505
www.esta.org

Page 26 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

6.2

General Description
GEO M6 “Left” and “Right” configuration
GEO M6 can be installed “Left” or “Right”:- “Left” means HF waveguide is left as seen from front- “Right” means HF waveguide is right as seen from front.
GEO M6 can be connected to bumpers “Left” or “Right” by simply flipping the cabinets.
Whenever possible, NEXO recommends symmetrical designs (preferably NEXO logo outwards and HF
waveguide inwards in stereo configurations)

GEO M620 “Left”

Geo M620 “Right”

GEO M6 modules rigging system

GEO M620

GEO M6Bass

GEO M6B and GEO M620 feature a 3-point rigging system, 2 for front connection, and 1 for rear connection and angle splay
settings.
Angle splay setting sequence is: 0.5° / 2° / 5° / 10° / 15° / 20°
GEO M6 angle setting bar connects 2 x GEO M6 with 2 quick release pins. It can be set upwards or downwards or removed onuser’s choice (independently from “Left” and “Right” configuration):-If the angle settings bars are set downwards, it will have to be removed from cluster bottom cabinet-

If angle setting bars are set upwards, it will have to be removed when attached to bumper

Below drawings show rear connecting bar configuration according to “left” or “right” configuration.

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

In order to avoid misuse or wrong angle setting by confusing left and right printings on GEO M6, remember that:-

The cabinet articulation hole around which angle setting bar rotates is always the one with no angle value indication-

The cabinet angle setting hole along which angle setting bar slides is always next to the “0°” indication-

The angle reading values are defined by the printing on the same side

MSUB12 and MSUB12-I rigging system
MSUB12 and MSUB12-I feature a 4-points rigging system, 2 for front and 2 for rearconnection.
Angle splay settings are as follow:-

MSUB12 to MSUB12: 0°-

MSUB12 to GEOM620 (or GEOM6B): -12° / -9° / -3° / 0° / 3° / 6° / 9° / 12°

MSUB12 is connected by using quick release pins (not provided, 4 x VXT-BL615 haveto be ordered separately for each MSUB12) while MSUB12-I is shipped with 4 axes,
plates and screws.

Permanent installation variant
For permanent installations where systems won’t have to be frequently assembled and disassembled-

GEOM6 front pins are replaced by an axis with break nuts-

GEOM6 rear pins are replaced by shoulder screws with break nuts

Please note that these elements are not shipped with GEO M6 but are included in the GMI-BNFIX kit.

-

MSUB12 front and rear pins and MSUB12-I axes and plates are replaced by two axes with nuts and safety pins only for theconnection to VNT-BUMPM6

Please note that these elements are not shipped neither with MSUB12 nor MSUB12-I but are included in the VNI-FIXBUMPM6
kit.

Page 28 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

Accessories
GEO M6 and MSUB12 accessories are:
VNT-BUMPM6

VNT-EXBARM6

GMT-BUMPER(up to 12xGEO M6 max)
GMT-EXBAR

GMT-LBUMP

GMT-BPADPT-2(up to 3xGEO M6 max)
GMT-LBPADPT

VNT-POLE

VNT-XHBRKVNT-TCBRK

VXT-BL515

VXT-BL615

VNT-MNSTKM6

GMT-FLG

VNI-WS15

VNI-FIXBUMPM6

GMI-BNFIX

GMI-IPCOVVNI-LNKM61018

GMT-6CASE

MST-2CASEMSUB12

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

Warnings on GEO M6 and MSUB12 accessories
WARNINGAll GEO M6 accessories are specifically rated in agreement with structural computations.
Never use other accessories – including push-pins - when assembling GEO M6 cabinets than the ones
provided by NEXO: NEXO will decline responsibility over the entire GEO M6 accessory range if any
component is purchased from different supplier.
WARNINGAll GEO M6 accessories have been designed so that cabinets are arrayed vertically.
GEO M6 horizontal assemblies as shown in figure below are UNSAFE and STRICTLY PROHIBITED.

YES

Page 30 / 102

NO

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

6.3

Ground Stack setups
Described configurations

GEO M6 only

MSUB12 + GEO M6

MSUB12 + GEO M6

LS18 + GEO M6

GMT-BUMPER

VNT-MNSTKM6

VNT-BUMPM6

GMT-BUMPER

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

GEOM6 only on GMT-BUMPER

Required item-

1 x GMT-BUMPER-

4 x VXT-BL515 per GEO M6IMPORTANT
GMT-BUMPER is rated for a maximum of 3 stacked GEO M6 in any inter cabinet angle configuration with
0°/-7° initial angle, provided the stack is assembled according to below rules:- GMT-BUMPER must always be installed on a horizontal surface- Public is not allowed within a safety area which radius is equal or higher than assembly height.
Procedure-

Set GMT-BUMPER on the ground.

-

Connect bottom GEO M6 to GMT-BUMPER at required vertical angle with 4 x VXT-BL515 quick release pins.

-

Connect subsequent GEO M6 at required inter-angle values with 4 x VXT-BL515 quick release pins.

IMPORTANT
Ensure that 5mm pins are properly locked into GEO M6 and GMT-BUMPER

Page 32 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

MSUB12 and GEO M6 with Ministack adaptor

Required item-

1 x VNT-MNSTKM6-

1 x GMT-BUMPER-

4 x VXT-BL515 per GEO M6-(N-1) x VXT-BL615 for N x MSUB12IMPORTANT
Ground stack assembly is rated for a maximum of 2 x MSUB12 + 3 x GEO M6 in any inter cabinet angle
configuration with 0°/-7° initial angle, provided this device is assembled according to below rules:- MSUB12 must always be installed on a horizontal surface- Public is not allowed within a safety area which radius is equal or higher than assembly height.
Procedure-

Set first MSUB12 on the ground-

Align second MSUB12 on top of first and lock them by inserting the 4 VXT-BL615.

-

Place MNSTKM6 in the M20 footprint of the MSUB12.

-

Place GMT-BUMPER above MSUB12 and align one hole of it with MNSTKM6.

-

Insert the clevis pin and secure with “R” clip.

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE-

Connect bottom GEO M6 to GMT-BUMPER at required vertical angle with 4 x VXT-BL515 quick release pins.

-

Connect subsequent GEO M6 at required inter-angle values with 4 x VXT-BL515 quick release pins.

IMPORTANT
Ensure that the clevis pin is properly locked in VNT-MNSTKM6, and that 5mm pins are properly locked
into GEO M6Page 34 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

MSUB12 and GEO M6 on Touring Bumper

Required items-

1 x VNT-BUMPM6-

3 x VXT-BL515 for first GEO M6-

4 x VXT-BL515 per GEO M6-

4 x VXT-BL615 per MSUB12IMPORTANT
Ground stack assembly with VNT-BUMPM6 is rated for a maximum of 2 x MSUB12 + 6 x GEO M6 in any
inter cabinet angle configuration with +/-12° initial angle, provided this device is assembled according to
below rules:- MSUB12 must always be installed on a horizontal surface.
- Public is not allowed within a safety area which radius is equal or higher than assembly height.
- It is highly recommended to secure the system to a fix point located at the back of the stack.
Procedure-

Set first MSUB12 on the ground-

Align second MSUB12 on top of first and lock them by inserting the 4 VXT-BL615.

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE-

Position VNT-BUMPM6 on top of MSUB12 and secure it by inserting 4 x VXT-BL615-

Lock the 2 wheels to avoid vibrations, put the skids in contact with MSUB12 but do not force.

-

Pull the bolt of VNT-BUMPM6 to unlock the link bar and rotate it-

Position first GEO M6 on top of VNT-BUMPM6 and secure the two front points by inserting 2 x VXT-BL515 quick releasepins-

Connect GEO M6 rear point to VNT-BUMPM6 link bar at required inclination by inserting 1 x VXT-BL515 quick release pin

Page 36 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURESTACKING

-

+12°

N

+9°

P

+6°

Q

+3°

R

0°

S

-3°

T

-6°

V

-9°

X

-12°

Z

Connect subsequent GEO M6 at required inter-angle values with 4 x VXT-BL515 quick release pins.

IMPORTANT
Ensure that 5mm pins are properly locked into GEO M6 and VNT-BUMPM6

System Manual GEOM6 MSUB12

Page 37 / 102

GEO M6 HARDWARE SETUP PROCEDUREGEO M6 stacked on LS18

Required items-

1 x GMT-BUMPER-

1 x GMT-BPADPT-2-

4 x VXT-BL515 per GEO M6IMPORTANT
GMT-BPADPT-2 is rated for a maximum of 6 x GEO M6 on a single LS18 in any inter cabinet angle
configuration, with 0°/-7° initial angle, provided this device is assembled according to below rules:- LS18 must always be installed on a horizontal surface.
- Ensure that public is not allowed within a safety area which radius is equal or higher than assembly
height.
- It is highly recommended to secure the system to a fix point located at the back of the stack.

Procedure-

Connect GMT-BPADPT-2 poles stand adaptor to GMT BUMPER using provided clevis pin; secure pin with “R” clip-

Stack GMT-BUMPER on top of LS18 by inserting GMT-BPADPT-2 into LS18 pole mount hole-

Connect bottom GEO M6 to GMT-BUMPER at required vertical angle with 4 x VXT-BL515 quick release pins

NB: please note that bottom cabinet angle can be adjusted from -7° to 0° in relation to LS18

Page 38 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE-

Connect subsequent GEO M6 at required inter-angle values with 4 x VXT-BL515 quick release pins

IMPORTANT
Ensure that the clevis pin is properly locked in GMT-BPADPT-2, and that 5mm pins are properly locked
into GEO M6

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

1 to 3 (maximum) GEO M6 pole mounted

Required items-

1 VXT-PLSTD or 1 Speaker Stand 35mm diameter-

1 x GMT-LBUMP-

1 x GMT-LBPADPT-

1 x VNT-POLE-

3 x VXT-BL515 for first GEO M6-

4 x VXT-BL515 for second and third GEO M6IMPORTANT (SPEAKER STAND)- Speaker stand must be rated for assembly weight (30kg rated load min).
- Speaker stand must always be installed on a horizontal surface.
- Stand height and footprint must be defined to prevent assembly from collapsing.
- Ensure that public is not allowed within a safety area which radius is equal or higher than assembly
height.
IMPORTANT (NEXO SUB POLE STAND)- NEXO VXT-PLSTD pole stand only should be used for mounting on top of NEXO SUB.
- NEXO SUB must always be installed on a horizontal surface.
- Ensure that public is not allowed within a safety area which radius is equal or higher than assembly
height.

Procedure-

Attach the GMT-LBPADPT to the GMT-LBUMP by using the screws, washers and bolts provided with GMT-LBPDAPT.

-

Use the 2 pins provided with VNT-POLE to attach L-BUMP at required vertical angle, according to below drawings.

Bottom GEO M6 at 0°

Bottom GEO M6 at -5°

Bottom GEO M6 at -10°

NB: above connection configurations are designed for assembly gravity center being aligned with pole axis, ensuring maximum
safety.

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System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

IMPORTANT
Ensure that 8mm pins are properly locked in VNT-POLE-

Connect bottom cabinet to GMT-LBUMP with 3 x VXT-BL515 quick release pins-

Lift assembly on speaker stand or on LS18 with VXT-PLSTD pole stand.

-Connect subsequent GEO M6 at required inter-angle values with 4 x VXT-BL515 quick release pins

IMPORTANT
Ensure that 5mm pins are properly locked into GEO M6

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

6.4

Flown clusters setups
Described configurations

GEOM6 only
VNT-BUMPM6

MSUB12 only
VNT-BUMPM6

2 rigging points

1 rigging point

GEOM6 only
GMT-BUMPER

Page 42 / 102

System Manual GEOM6 MSUB12

MSUB12 + GEOM6
VNT-BUMPM6

GEO M6 HARDWARE SETUP PROCEDUREGEO M6 only flown with GMT-BUMPER

Required items-

1 or 2 hoists (not provided).

-

1 x GMT-BUMPER-

1 x GMT-EXBAR for extended positive and negative bumper angles-

4 x VXT-BL515 per GEO M6-

1 x GMT-6CASE for 6 x GEO M6

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

IMPORTANT
Maximum GEO M6 quantity for flown vertical cluster is 12 (and eventually less).
Please check NS-1 for mechanical Safety Working Load and acoustic computations.
IMPORTANT
Please check configuration in NS-1 for proper motor hoist rating
Procedure with flight case set vertically-

Tip the flight case vertically-

Remove upper cover to access to top cabinet rigging points-

Connect GMT-BUMPER to top cabinet with 4 x VXT-BL515 quick release pins-If required, connect GMT-EXBAR to GMT-BUMPER by inserting EXBAR clevis pins into GMT-BUMPER “B” and “D” holes-

Connect single hoist to required hole as indicated in NS-1 design−“A”, “B”, “C”, “D” or “E” on GMT-BUMPER−

Or “1” to “9” if using GMT-EXBAR−

If using 2 hoists, connect these using extreme points(“A” and “E”, or “A” and “9” or “”9” and “E”)

GMT-BUMPER and GMT-EXBAR referenced rigging points

IMPORTANT
Ensure hoist hook(s) is (are) properly secured to GMT-BUMPER-

Lift assembly to sufficient height in order to connect additional GEO M6 if required-

Set inter-angle values

IMPORTANT
Ensure all pins are properly locked into GEO M6-

Lift cluster to NS-1 defined rigging height, secure cluster horizontally to prevent it from rotating-

Secure bumper with secondary safety steel.

IMPORTANTThe requirements for secondary safety systems vary with territories. However, the secondary safety steel
MUST have a SWL equivalent or greater than that of the rigging system.

Page 44 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

Procedure with flight case set horizontally-

Open upper cover while the flight case is on its wheels-

Connect GMT-BUMPER to top cabinet 4 x VXT-BL515 quick release pins-If required, connect GMT-EXBAR to GMT-BUMPER by inserting EXBAR clevis pins into GMT-BUMPER “B” and “D” holes-

Insert shackle(s) in bumper or in extension bar in required hole(s) as indicated in NS-1 design and secure shackle(s) bolt(s)−If using 1 hoist on GMT-BUMPER, holes are “A” to “E”−

If using 1 hoist on GMT-EXBAR, holes are “1” to “9”−If using 2 hoists, connect these using extreme points (“A” and “E”, or “A” and “9” or “”9” and “E”)

GMT-BUMPER and GMT-EXBAR referenced rigging points

System Manual GEOM6 MSUB12

Page 45 / 102

GEO M6 HARDWARE SETUP PROCEDURE-

Connect hoist hook(s) to shackle(s) and start lifting bumper and position angle setting pins at required value

IMPORTANT
Ensure hoist hook(s) is (are) properly secured to GMT-BUMPER-

Attach second set of 6 x GEO M6 to the first set by bringing the second GEO M6 flight case adjacent to the first one, carryon lifting bumper and set inter-angle values for the second set of GEO M6IMPORTANT
Ensure all pins are properly locked into GEO M6-

Lift cluster to NS-1 defined rigging height, secure cluster horizontally to prevent it from rotating-

Secure bumper with secondary safety steel.

IMPORTANTThe requirements for secondary safety systems vary with territories. However, the secondary safety steel
MUST have a SWL equivalent or greater than that of the rigging system.

Page 46 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

Variant with maximum 3 GEO M6 and GMT-LBUMP

Required items-

1 x GMT-LBUMP-

1 x GMT-LBPADPT-

1 x VNT-TCBRK (truss mounting) or 1 x VNT-XHBRK (cable mounting)-

3 x VXT-BL515 for first GEO M6-

4 x VXT-BL515 for second and third GEO M6IMPORTANT
Ensure that suspension point is strong enough to hold 4 times GEO M6 cluster weight (35 kg)
Procedure-

Attach the GMT-LBPADPT to the GMT-LBUMP by using the screws, washers and bolts provided with GMT-LBPADAPT-

Connect top cabinet to GMT-LBUMP with 3 x VXT-BL515 quick release pins-

Connect subsequent GEOM6 at required inter-angle values with 4 x VXT-BL515 quick release pins-

Connect truss clamp VNT-TCBRK or ring clamp VNT-XHBRK to GMT-LBPADAPT by inserting 8x45 quick release pin in
required holes for proper vertical aiming

IMPORTANT
Ensure that the 8mm pin is properly locked in GMT-LBADPT, and that 5mm pins are properly locked into
GEO M6-

Lift and position assembly, lock and secure clamp on rigging point.

System Manual GEOM6 MSUB12

Page 47 / 102

GEO M6 HARDWARE SETUP PROCEDUREGEO M6 only flown with VNT-BUMPM6

Required items-

1 or 2 hoists (not provided).

-

1 x VNT-BUMPM6-

1 x VNT-EXBARM6 for extended positive and negative bumper angles-

3 x VXT-BL515 for first GEO M6-

4 x VXT-BL515 per GEO M6Page 48 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

IMPORTANT
Maximum GEO M6 quantity for flown vertical cluster is 12 (and eventually less).
Please check NS-1 for mechanical Safety Working Load and acoustic computations.
IMPORTANT
Please check configuration in NS-1 for proper motor hoist rating
Procedure-

Pull the bolt of VNT-BUMPM6 to unlock the link bar and rotate it-

Position VNT-BUMPM6 on top of first GEO M6-

Secure the two front points by inserting 2 x VXT-BL515 quick release pins-

Connect GEO M6 rear point to VNT-BUMPM6 link bar at required inclination by inserting 1 x VXT-BL515 quick release pin

System Manual GEOM6 MSUB12

Page 49 / 102

GEO M6 HARDWARE SETUP PROCEDURE

HANGING
Z

+12°

X

+9°

V

+6°

T

+3°

S

0°

R

-3°

Q

-6°

P

-9°

N

-12°

-

If required, connect VNT-EXBARM6 to VNT-BUMPM6 by inserting the extension bar guides into the slots of the bumper-

Secure it with the two quick release pins connected to the extension bar-

Insert shackle(s) in bumper or in extension bar in required hole(s) as indicated in NS-1 design and secure shackle(s) bolt(s)-−If using 1 hoist on VNT-BUMPM6, holes are “A” to “N”−

If using 1 hoist on VNT-EXBARM6, holes are “O” to “U”−

If using 2 hoists, connect these using extreme points (“A” and “N”, or “A” and “U” or “U” and “N”)

Connect hoist hook(s) to shackle(s) and lift assembly to sufficient height in order to connect additional GEO M6 if required

IMPORTANT
Ensure hoist hook(s) is (are) properly secured to VNT-BUMPM6 or VNT-EXBARM6 shackle(s)Ensure that all quick release pins are locked-

Connect subsequent GEOM6 at required inter-angle values with 4 x VXT-BL515 quick release pins

Page 50 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

IMPORTANT
Ensure all pins are properly locked into GEO M6-

Lift cluster to NS-1 defined rigging height, secure cluster horizontally to prevent it from rotating-

Secure bumper with secondary safety steel.

IMPORTANTThe requirements for secondary safety systems vary with territories. However, the secondary safety steel
MUST have a SWL equivalent or greater than that of the rigging system.

System Manual GEOM6 MSUB12

Page 51 / 102

GEO M6 HARDWARE SETUP PROCEDURE

MSUB12 only flown with VNT-BUMPM6

Required items-

1 or 2 hoists (not provided).

-

1 x VNT-BUMPM6-

4 x VXT-BL615 per MSUB12IMPORTANT
When flying MSUB12 cluster, VNT-BUMPM6 must be set at 0°
If cluster is flown from 2 points, bumper must be maintained horizontal in its definitive position as well as whenlifting or lowering the cluster
If cluster is flown from a single point, please check NS-1 for proper hole selection
IMPORTANT
Maximum MSUB12 quantity for flown vertical cluster with VNT-BUMPM6 is 8.
Please check NS-1 for mechanical Safety Working Load and acoustic computations.
IMPORTANT
Please check configuration in NS-1 for proper motor hoist rating

Page 52 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

Procedure-

Position VNT-BUMPM6 on top of first MSUB12 and secure it by inserting 4 x VXT-BL615 quick release pins-

Insert shackle(s) in VNT-BUMPM6 in required hole(s) as indicated in NS-1 design and secure shackle(s) bolt(s)-−If using 1 hoist, holes are "A" to "N"−

If using 2 hoists, connect these using extreme points (“A” and “N”)

Connect hoist hook(s) to shackle(s) and lift assembly to sufficient height in order to connect additional MSUB12 if required

IMPORTANT
Ensure hoist hook(s) is (are) properly secured to VNT-BUMPM6 shackle(s)Ensure that all quick release pins are locked-

Connect subsequent MSUB12 with 4 x VXT-BL615 quick release pins

IMPORTANT
Ensure that all pins are properly locked into MSUB12-

Lift cluster to NS-1 defined rigging height, secure cluster horizontally to prevent it from rotating-

Secure bumper with secondary safety steel.

IMPORTANTThe requirements for secondary safety systems vary with territories. However, the secondary safety steel
MUST have a SWL equivalent or greater than that of the rigging system.

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

MSUB12 and GEO M6 flown with VNT-BUMPM6

Required items-

1 or 2 hoists (not provided).

-

2 x VNT-BUMPM6-

4 x (N+1) x VXT-BL615 for N x MSUB12-

3 x VXT-BL515 for first GEO M6-

4 x VXT-BL515 per GEO M6Page 54 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

IMPORTANT
When flying MSUB12 and GEO M6 cluster, VNT-BUMPM6 must be set at 0°- If cluster is flown from 2 points, bumper must be maintained horizontal in its definitive position as wellas when lifting or lowering the cluster- If cluster is flown from a single point, please check NS-1 for proper hole selection
IMPORTANT
Maximum quantity for flown vertical cluster with VNT-BUMPM6 is:NGEOM6 + 1.5*NMSUB12 <= 12
Please check NS-1 for mechanical Safety Working Load and acoustic computations.
IMPORTANT
Please check configuration in NS-1 for proper motor hoist rating
Procedure-

Position VNT-BUMPM6 on top of first MSUB12 and secure it by inserting 4 x VXT-BL615 quick release pins-

Insert shackle(s) in VNT-BUMPM6 in required hole(s) as indicated in NS-1 design and secure shackle(s) bolt(s)-−If using 1 hoist, holes are "A" to "N"−

If using 2 hoists, connect these using extreme points (“A” and “N”)

Connect hoist hook(s) to shackle(s) and lift assembly to sufficient height in order to connect additional MSUB12 if required

IMPORTANT
Ensure hoist hook(s) is (are) properly secured to VNT-BUMPM6 shackle(s)Ensure that all quick release pins are locked

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE-

Connect subsequent MSUB12 with 4 x VXT-BL615 quick release pins

IMPORTANT
Ensure that all pins are properly locked into MSUB12-

Once all MSUB12 are off the ground, position second VNT-BUMPM6 below last MSUB12 and secure it by inserting 4 x
VXT-BL615 quick release pins-

Pull the bolt of bottom VNT-BUMPM6 to unlock the link bar and rotate it-

Position first GEO M6 below bottom VNT-BUMPM6Page 56 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE-

Secure the two front points by inserting 2 x VXT-BL515 quick release pins-

Connect GEO M6 rear point to VNT-BUMPM6 link bar at required inclination by inserting 1 x VXT-BL515 quick release pin-

Lift assembly to sufficient height in order to connect additional GEO M6 if required-

Connect subsequent GEOM6 at required inter-angle values with 4 x VXT-BL515 quick release pins

IMPORTANT
Ensure that all pins are properly locked into GEO M6-

Lift cluster to NS-1 defined rigging height, secure cluster horizontally to prevent it from rotating-

Secure bumper with secondary safety steel.

IMPORTANTThe requirements for secondary safety systems vary with territories. However, the secondary safety steel
MUST have a SWL equivalent or greater than that of the rigging system.

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

4 to 12 (maximum) GEO M6 ceiling mounted

Required items-

1 x GMT-BUMPER-

1 x GMI-BNFIX per GEO M6-

4 x 8mm diameter screws (not provided)

IMPORTANT
Ensure that the ceiling is strong enough to hold 4 times GEO M6 cluster weight and that the four screws 8mm diameter and corresponding plugs required to fix the bumper under the ceiling are properly
dimensioned.
Procedure-

8mm diameter screws (not provided) are required to fix the GMT-BUMPER to the ceiling-

Connect the bumper to top cabinet by inserting the GMI-BNFIX axis through front holes and secure axis and rear link with
GMI-BNFIX screws-

Connect subsequent cabinets with GMI-BNFIX at required inter-angle values
NB: please note that top cabinet angle will be 0° in relation to the bumper

IMPORTANTIn order to prevent screws from getting loose in fixed installations, use blocking liquid LOCTITE TM 243 orequivalent for all screws used with GEO M6 fixed installation accessories.
LOCTITETM 243 is available at NEXO or at your local distributor upon request.

Page 58 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

1 to 3 (maximum) GEO M6 wall mounted
Required items-

1 x VNI-WS15-

1 x GMT-LBUMP-

1 to 3 GMI-BNFIX-

3 x 12mm diameter screws (not provided)

IMPORTANT
Ensure that the wall is strong enough to hold 4 times GEO M6 cluster weight and that the 12 mm diameterscrews and corresponding plugs required to fix the VNI-WS15 on the wall are properly dimensioned.
Procedure-3 x 12mm diameter screws (not provided) are required to fix the VNI-WS15 support to the wall-

Connect GMT-LBUMP to top cabinet by inserting the GMI-BNFIX axis through front holes and secure axis and rear linkwith GMI-BNFIX screws-

Connect subsequent cabinets with appropriate inter-angle values-

Connect the VNI-WS15 suspension plate to the GMT-LBUMP by using the M6x20 screws provided with the GMT-LBUMP

NB: please do not use the screws supplied with VNI-WS15, too long for this application case-

Position the 6x20 screws in the oblong hole so that required vertical angle is obtained-

Secure the screws with Loctite 243 or equivalent-

Suspend to the wall suspension using the shoulder screws supplied with VNI-WS15-

Secure the assembly with the VNI-WS15 safety cable-

Adjust horizontal angle

IMPORTANTIn order to prevent screws from getting loose in fixed installations, use blocking liquid LOCTITE TM 243 orequivalent for all screws used with GEO M6 fixed installation accessories.
LOCTITETM 243 is available at NEXO or at your local distributor upon request.

System Manual GEOM6 MSUB12

Page 59 / 102

GEO M6 HARDWARE SETUP PROCEDURE

1 to 3 (maximum) GEO M6 ceiling mounted
Required items-

1 x GMT-LBUMP-

1 to 3 x GMI-BNFIX-

4 x 8mm diameter screws (not provided)

IMPORTANT
Ensure that the ceiling is strong enough to hold 4 times GEO M6 cluster weight and that the four screws 8mm diameter and corresponding plugs required to fix the GMT-LBUMP under the ceiling are properly
dimensioned.
Procedure-

4 x 8mm diameter screws (not provided) are required to fix the GMT-LBUMP to the ceiling-

Connect GMT-LBUMP to top cabinet by inserting the GMI-BNFIX axis through front holes and secure axis and rear linkwith GMT-BNFIX screws-

Connect subsequent cabinets with GMI-BNFIX at required inter-angle values
NB: please note that top cabinet angle will be -10° in relation to the L-bumper

IMPORTANTIn order to prevent screws from getting loose in fixed installations, use blocking liquid LOCTITE TM 243 orequivalent for all screws used with GEO M6 fixed installation accessories.
LOCTITETM 243 is available at NEXO or at your local distributor upon request.

Page 60 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

MSUB18-I and GEO M6 flown with VNI-LNKM61018

Required items-

1 or 2 hoists (not provided)-

1 x VNI-BUMPM12-

1 x VNT-EXBARM12 to fly on a single rigging point-

1 x VNI-LNKM61018-

1 x GMI-BNFIX per GEO M6IMPORTANT
When flying MSUB18 & GEO M6 cluster, VNI-BUMPM12 must be set at 0°- If cluster is flown from 2 points, bumper must be maintained horizontal in its definitive position as wellas when lifting or lowering the cluster- If cluster is flown from a single point, extension bar must be used. Please check NS-1 for proper holeselection
IMPORTANT
Maximum GEO M6 quantity for flown vertical cluster with VNI-LNKM61018 is 6.
Maximum MSUB18 quantity for flown vertical cluster with VNI-BUMPM12 is:NGEOM6 + 1.5*NMSUB18 <= 12
Please check NS-1 for mechanical Safety Working Load and acoustic computations.
IMPORTANT
Please check configuration in NS-1 for proper motor hoist rating

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

Procedure-

Place the bumper on MSUB18-I, insert the axis and the washers (M8) and secure with the brake nuts (M8).

-

If required, position VNT-EXBARM12 frontwards or rearwards into VNI-BUMPM12 slots and lock devices with the provided
fasteners (shoulder screws and brake nuts).

-

Insert shackle(s) in bumper or in extension bar in required hole(s), ie:-−

If using 1 hoist on VNT-EXBARM12, it must be connected to the hole indicated by NS-1−

If using 2 hoists on VNT-EXBARM12, connect these using extreme holes (“A” and “T”)−

VNI-BUMPM12 without extension bar can only be flown with 2 hoists

Connect hoist hook(s) to shackle(s) and lift assembly to sufficient height in order to connect a second MSUB18-I

IMPORTANT
Ensure hoist hook(s) is (are) properly secured to VNI-BUMPM12 or VNT-EXBARM12 shackle(s)Ensure that all quick release pins are locked-

Remove the 4 corner plates (Tx30) of each MSUB18-I-

Insert the axis across front and rear rigging points, insert safety clips and secure these by bending their legs

Page 62 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE-

Place VNI-LNKM61018 below the last MSUB18-I, insert the axis and secure by bending the legs.

-

Check that the bumper is properly positioned with the GEO M6 rigging to the front (see image below)-

Position first GEO M6 below VNI-LNKM61018-

Insert the axis through front holes, insert the washers and secure with nuts-

Adjust the appropriate inter-angle value with the hybrid linkbar and secure with provided screw and nut

System Manual GEOM6 MSUB12

Page 63 / 102

GEO M6 HARDWARE SETUP PROCEDUREInter-angle with the first GEOM6 or GEOM10
Mark

Angle

Z

+15°

X

+12°

V

+9°

U

+6°

U

T

+3°

T

S

0°

R

-3°

Q

-6°

P

P

-9°

N
M

N

-12°

M

-15°

X
U

X

T
S
R

S

P
N
M

R

-

Connect subsequent cabinets with GMI-BNFIX at required inter-angle values-

Insert the axis through front holes, insert the washers and secure with nuts-

Adjust the appropriate angle splay bar value with the linkbar and secure with provided screws and nuts

Please see GEO M12 System Manual for more information about MSUB18-I and VNI-BUMPM12.

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System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

6.5

Permanent installation variant
All procedures described above apply to installation versions, with the exception of bumper and cabinet connections, which aredescribed below:

Connecting MSUB12 or MSUB12-I to VNT-BUMPM6 with VNI-FIXBUMPM6-

Place the bumper on MSUB12 or MSUB12-I-

Insert the axis and lock with the nuts-

Insert the safety pins and secure by bending the legs

Connecting GEO M6 to VNT-BUMPM6 with GMI-BNFIX-

Place the bumper on GEO M6-

Insert the axis through front holes, insert the washers and secure with nuts-

Adjust the appropriate inter-angle value with the linkbar and secure with provided screw and nut

System Manual GEOM6 MSUB12

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GEO M6 HARDWARE SETUP PROCEDURE

Subsequent MSUB12-I-

Place one MSUB12-I on top of another MSUB12-I-

Insert the 4 pins (2 on both sides) provided with MSUB12-I-

Secure with the provided plates and the screws

Subsequent GEOM6 with GMI-BNFIX-

Insert the axis through front holes, insert the washers and secure with nuts-

Adjust the appropriate angle splay bar value with the linkbar and secure with provided screws and nuts

Page 66 / 102

System Manual GEOM6 MSUB12

GEO M6 HARDWARE SETUP PROCEDURE

6.6

Testing and Maintenance of the system
General: GEO is a precision piece of equipment and requires regular attention to maintenance in order to give long and reliable
service. NEXO recommends regular testing of loudspeaker rigging components, preferably using a suitable test rig coupled witha visual inspection.
Fasteners: there are several critical points in the MSUB12 and GEO M6 cabinets.
Of primary concern are:a) The grid screws attaching the grid to the cabinetb) The machine screws attaching the connecting plates to the cabinet.
c) The screws attaching the directivity flanges to the front of the cabinet.
These fasteners should be regularly checked and tightened as necessary.
Cleaning: The exterior of the cabinet and the rigging system can be cleaned with a damp cloth soaked in mild soapy water. On
no account use solvent based cleaners, which may damage the finish of the cabinet
After cleaning, the rigging system must be treated with a suitable lubricant to prevent rusting. NEXO recommends the use of
Scottoil FS365 which is a water-based lubricant with a mixture of machine oil, surfactant and anti-rust treatment.

System Manual GEOM6 MSUB12

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SYSTEM CHECK ALIGNMENT GUIDELINES

7

SYSTEM CHECK ALIGNMENT GUIDELINESThe NXAMP’s factory delay presets are optimised to provide the best possible crossover between the GEO M6 and MSUB12
Subwoofers systems. The reference point for this adjustment is the front of each cabinet, which means that the internal delays
needed to achieve a correct time alignment are set for cabinets standing next to each other with both fronts aligned. We
recommend that the system is adjusted so that arrivals from GEO M6 and MSUB12 subwoofer are coincident at a fairly distantlistening position.

7.1

GEO M6 Vertical Cluster design
Cluster design must be done with NS-1, which provides very intuitive and fast method to determine all cluster geometry
parameters in relation to venue where cluster is implemented.

NS-1 is a freeware available for all NEXO users at nexo-sa.com
IMPORTANT
Never install a GEO M6 and/or MSUB12 cluster without checking its acoustical performances andmechanical safety in NS-1 prior to installation.
Please contact your local distributor for assistance and/or training NS-1

7.2

Stacked MSUB12s and Flown GEO M6
In the example below, r1 being the distance from GEO M6 array to listener position, and r2 being the distance from MSUB12 tolistener position, the distance difference is then r1–r2 (specified meters or feet).
-r1 > r2, the delay should be set on the MSUB12 NXAMP TDcontroller channel.

-

r1 < r2, the delay should be set on the GEO M6 NXAMP TDcontroller channel-

To convert the result in time delay (specified in seconds), apply:-

t = (r1-r2)/C r1 and r2 in meters, C (sound speed)  343 m/S.

Set the units to meters, feet or seconds according to your preference). Delay will have to be adjusted according to the distancedifference r1–r2 (see figure below).

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System Manual GEOM6 MSUB12SYSTEM CHECK ALIGNMENT GUIDELINES

7.3

Driving the MSUB12s from the AUX send
It is quite common to use the AUX send of a mixing desk to drive the Sub section of a PA system. This gives the mixing engineer
more flexibility to set the level of the sub bass relative to the main PA, apply special effects, or to use a different EQ on the Sub.
However, it also raises some serious issues for the performance & safety of the system (mostly time alignment).
At NEXO, great care is taken to design optimum phase alignment from one octave above to one octave below the crossover
frequency point. By doing so, drivers are working perfectly together and providing the best efficiency possible. It is then up to
the user to adjust the delay on the NXAMP to match the physical path difference of the different systems. It is thus possible toget a well-adjusted system, even without measuring instruments.
If MSUB12s are driven form an AUX output, NXAMPs are fed with two signals coming from different sources. If those twosources (MAIN output & AUX send) are not exactly in phase, delay is introduced into the crossover between the GEO M6 arrayand the MSUB12s. It is then mandatory to use proper measurement tool to optimize phase response.
Why is it unlikely that AUX and MAIN outputs have the same phase?
•

Signal paths are likely to be different; any filter modifying the bandwidth and EQ of the signal is also affecting thephase.
Example: a 24dB/oct high pass filter set at 15Hz is affecting amplitude of the signal by only 0.6dB at 30Hz, but thephase shift is 90°!! At 100Hz we can still measure 25° of phase shift.

•

Limiting bandwidth with a low pass filter can introduce a phase difference of up to 180° (completely out of phase)at the cross over point.

•

If the signal is passing through any digital equipment, between 1.4ms and 2.2ms is being added (around 70° phaseshift at 100Hz) due solely to the converter delay! The additional delay due to the processing itself (look ahead
compressor, delay…) can be quite important as well.

If both outputs are not measured in the actual configuration, it is very likely that phase alignment will not be correct.
Consequences of badly aligned systems
Mis-aligned systems have lower efficiency: i. e. for the same SPL the system will have to be driven harder, activating thedisplacement & temperature protection at lower output levels. Both sound quality and reliability will decrease as the system isstressed.
Precautions & Checks
Before using the AUX of a mixing desk, ensure that MAIN and AUX outputs are in phase.
Always apply identical EQ or processing on both channels, so that the phase relationship will not be altered.
Never add additional low pass filtering on the SUB or high pass filtering on the main system.
Inverting polarity on one channel should always result in a massive difference near the crossover point. If that is not the case,the system is no longer aligned.

7.4

Recommended installation tools and equipment
Tape measure – should be 30m/100ft in length and be of durable fibre material. Have one per array available to speed up the
installation process.
Laser Inclinometer – For measuring vertical and horizontal angles in the venue.
Spirit level – used to ascertain the trueness of the surface from which the angle measurements originate.
Rangefinder measuring device – either a Disto type laser measure or an optical laser rangefinder can be used. Devices suchas the Bushnell ‘Yardage Pro’ sports rangefinders provide sufficiently accuracy and are easy to use. They have the additional
advantage of working very well in bright sunlight.
Electronic calculator with trigonometric functions to calculate the height from ground level to points in the room. The formula tocalculate height of a point from measured angle and distance is:
Height of point = Sin(vertical angle in degrees) x distance to point
NB: Take care when using spreadsheets as they calculate using radians by default. To convert degrees to radians use theformula:Angle (in radians)=3.142 x Angle (in degrees)/180
Computer – Laptop or Desktop PC running Windows XP with the current version of NEXO NS-1 installed. It is not possible toconfigure a Geo tangent array properly without using NS-1. Note that, when NS-1 designs are prepared prior to arrival at thevenue, it is often necessary to modify or update the design to accommodate special circumstances. A PC is absolutely essential
to make such changes.
Audio Analysis Software – recommended but not absolutely essential, programs such as Systune TM, SmaartTM enable rapid anddetailed analysis of the installation. Consider taking a training course in using one of these tools if you are not already competentwith them – it will pay dividends in increased performance of the system.

System Manual GEOM6 MSUB12

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SYSTEM CHECK ALIGNMENT GUIDELINES

7.5

GEO M6 – MSUB12 System check list
It is essential to execute all these check steps prior to perform a sound check on the “front end” to the system. Following thischecklist step by step will prevent many troubles and will save time in the end.

Are the speakers properly connected and angled?
Attach the first series of modules to the bumper.
Before flying, verify that all channels of all modules are functioning properly.
To check that all elements have the proper amplitude and phase, you should listen to the upper boxes at a close distance (<1meter). You should be able to move from the top to the bottom of the cluster without hearing any change in the tonal balance.
Verify that the angle settings are the same on both sides of each module.
Raise the bumper, attach the next series of modules and repeat the above checks.
Make sure that these series of modules sum properly with the modules above them.
When all the modules are flown, check that the aiming angles are the same left and right.
Make sure that multiple GEO M6 and MSUB12 are summing properly: 6 dB gain per doubling of quantity.

Final Pre-Sound Check Check
Play a CD track mono left, and then right: both sides must sound strictly identical. When listening in the centre between Left andRight GEO M6’s, everything from LF to HF should be located to the “phantom centre” position. If not, repeat the above checksequence to identify the source of the problem.

Page 70 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

88.1

TECHNICAL SPECIFICATIONSMSUB12 Subwoofer
System specifications

MSUB12 WITH NEXO TDCONTROLLER SETUP
Frequency Response @-6 dB
Sensitivity 1W@1m
Peak SPL@1m
Available Crossover Frequencies

45Hz - 150 Hz
102 dB SPL Nominal
130 dB
45-85, 45-120Hz, 45-150Hz, 63-120Hz, 63-150Hz

Nominal Impedance

6 OhmsRecommended Power

700 Watts / 6 ohms

PRODUCT FEATURES
Component
Height x Width x Depth
Weight: Net

1 x 12’’ (30cm) 3’’ voice coil long excursion Neodymium 6  driver
433 x 396 x 550 mm (17.0” x 15.6” x 21.7”)
23 kg (51 lb)

Connectors (Touring version)

4 x NL4, 4 poles connectors (1+/1- MSUB12 / 2+/2- Through)Connectors (Installation version)

1 x Cable gland with 2 cores cables

Construction
Fittings
Front Finish

Baltic Birch Ply & structured black coating
2 x Side handles
UV Resistant acoustic fabric fitted Magnelis® front gril

Operating temperature range

0°C - 40 °C (32° F - 104° F)

Storage temperature range-20 °C - 60 °C (-4 ° F - 140° F)

SYSTEM OPERATION
Recommended powering solution

NXAMP4x1mk2 Powered TDcontroller: up to 2 x MSUB12 per channel

Optional powering solution

NXAMP4x2mk2 Powered TDcontroller: up to 3 x MSUB12 per channel
NXAMP4x4mk2 Powered TDcontroller: up to 3 x MSUB12 per channel
DTD TDcontroller + DTDAMP4x1.3 Power amplifier: 1 x MSUB12 per channel
DTD TDcontroller + DTDAMP4x0.7 Power amplifier: 1 x MSUB12 per channel

System Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

Dimensions

17,0
4

15,6
96

Page 72 / 102

21,7
550

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

8.2

GEO M620 Module
System specifications

GEO M620 (without CDDTM)

GEO M620 (with CDDTM)

GEOM620 WITH NEXO TDCONTROLLER SETUP
Frequency Response @-6 dB

75 Hz to 20 kHz

Sensitivity 1W@1m

95 dB SPL Nominal

Peak SPL@1m

128 dB

Vertical Dispersion

20°

Horizontal Dispersion

80°

120°

Passive Crossover Frequency

2 kHz

Nominal Impedance

8 OhmsRecommended Power450 Watts

PRODUCT FEATURES
LF Component

1 x 6.5" 8 Ohms long excursion driver

HF Component

1 x 1" throat driver on a BEA/FEA optimized HR Wavesource™

Height x Width x Depth

209mm x 374mm x 282 mm (8.2' x 14.7' x 11.1’)

Weight: Net

9.7 kg (20 lbs)

Connectors

2 x NL4, 4 poles connectors (1+/1- Through, 2+/2- GEO M620)

Construction

Lightweight Polyurethane Composite

Fittings

2 x Side handles

Front Finish

Acoustic fabric fitted front grill

Operating temperature range

0°C - 40 °C (32° F - 104° F)

Storage temperature range-20 °C - 60 °C (-4 ° F - 140° F)

SYSTEM OPERATION
Recommended powering solution

NXAMP4x1mk2 Powered TDcontroller: up to 3 x GEO M620 per channel

Optional powering solution

NXAMP4x2mk2 Powered TDcontroller: up to 4 x GEO M620 per channel
NXAMP4x4mk2 Powered TDcontroller: up to 4 x GEO M620 per channel
DTD TDcontroller + DTDAMP4x1.3 Power amplifier: up to 2 x GEO M620 per
channelDTD TDcontroller + DTDAMP4x0.7 Power amplifier: up to 2 x GEO M620 per
channelSystem Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

Dimensions

Page 74 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

8.3

GEO M6B Module
System specifications

GEOM6B WITH NEXO TDCONTROLLER SETUP
Frequency Response @-6 dB
Sensitivity 1W@1m

70 Hz to 1kHz
94 dB SPL Nominal

Peak SPL@1m

125 dB

Nominal Impedance

8 OhmsRecommended Power450 Watts

PRODUCT FEATURES
LF Component
Height x Width x Depth

1 x 6.5" 8 Ohms long excursion driver
209mm x 374mm x 282 mm (8.2' x 14.7' x 11.1’)

Weight: Net

7.6 kg (14 lbs)

Connectors

2 x NL4, 4 poles connectors (1+/1- GEO M6B, 2+/2- Through)Construction

Lightweight Polyurethane Composite

Fittings

2 x Side handles

Front Finish

Acoustic fabric fitted front grill

Operating temperature range

0°C - 40 °C (32° F - 104° F)

Storage temperature range-20 °C - 60 °C (-4 ° F - 140° F)

SYSTEM OPERATION
Recommended powering solution

NXAMP4x1mk2 Powered TDcontroller: up to 3 x GEO M6B per channel

Optional powering solution

NXAMP4x2mk2 Powered TDcontroller: up to 4 x GEO M6B per channel
NXAMP4x4mk2 Powered TDcontroller: up to 4 x GEO M6B per channel
DTD TDcontroller + DTDAMP4x1.3 Power amplifier: up to 2 x GEO M6B per
channelDTD TDcontroller + DTDAMP4x0.7 Power amplifier: up to 2 x GEO M6B per
channelSystem Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

Dimensions

Page 76 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

8.4

GEO M6 and MSUB12 accessories
VNT-BUMPM6

Parts

X1

X2

Dimensions

19,2
489

14,8
75

,8
97
0,5
1

A

A

SECTION A A

Weight: 9kg / 20lb

System Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

VNT-EXBARM6

Parts

X1

X1

Dimensions

,7
9

18,1
461

0,5
1
1,7
44

Weight: 2kg / 4.4lb

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System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

GMT-BUMPER

Parts

X1

Dimensions

Weight: 2,2 kg / 4.9 lb

System Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

GMT-EXBAR

Parts

X1

X2

Dimensions

Weight: 1,9 kg / 4.2 lb

Page 80 / 102

System Manual GEOM6 MSUB12

X2

TECHNICAL SPECIFICATIONS

GMT-LBUMP

Parts
X1

X4 (Torx M6x20)

Dimensions

Weight: 1,9 kg / 4.2 lb

System Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

GMT-BPDAPT-2

Parts

X1

X2

Dimensions

Weight: 0,5 kg / 1.1 lb

Page 82 / 102

System Manual GEOM6 MSUB12

X2

TECHNICAL SPECIFICATIONS

GMT-LBPADPT

Parts
X1

X2

X2

X4

Dimensions

Weight: 0,7 kg / 1.6 lb

System Manual GEOM6 MSUB12

Page 83 / 102

TECHNICAL SPECIFICATIONSVNT-POLE

Parts
X1

Dimensions

Weight: 0,9 kg / 2.2 lb

Page 84 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONSVNT-XHBRK

Parts
X1

Dimensions

Weight: 0,35 kg / 0.8 lb

System Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONSVNT-TCBRK

Parts
X1

Dimensions

Weight: 0,78 kg / 1.8 lb

Page 86 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONSVXT-BL515
Parts
X1

Dimensions

Weight: 0,0125 kg / 0.0275 lb

System Manual GEOM6 MSUB12

Page 87 / 102

TECHNICAL SPECIFICATIONSVXT-BL615

Parts

X1

Dimensions

Weight: 0.0125 kg / 0.03 lb

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System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

VNT-MNSTKM6

Parts

X1

X1

X1

Dimensions

0,5
1

2,8
71
0,9
24

Weight: 0.14 kg / 0.31 lb

System Manual GEOM6 MSUB12

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TECHNICAL SPECIFICATIONS

GMT-FLG

Parts
X1

X4

Dimensions

1,5
9

6,4
162

Weight: 0,2 kg / 0.44 lb

Page 90 / 102

System Manual GEOM6 MSUB12

1,

TECHNICAL SPECIFICATIONSVNI-WS15Parts
X1 (Arm)

X1 (Adapter)

X1

X1

X2

X1

X2

X1

X1

X1

X1

Dimensions

Weight: 2,8 kg / 6.2 lb

System Manual GEOM6 MSUB12

Page 91 / 102

TECHNICAL SPECIFICATIONSVNI-FIXBUMPM6

Parts

X2

X2

X2

Dimensions

15,
88

0,2
6

Weight: 0.1 kg / 0.22 lb

Page 92 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

GMI-BNFIX

Parts

X2

X1

X2

X4

Dimensions

1 ,8
50

0,2
5

0,4
10

Weight: 0,2 kg / 0.44 lb

System Manual GEOM6 MSUB12

Page 93 / 102

TECHNICAL SPECIFICATIONSGMI-IPCOV

Parts
X1

Dimensions

Weight: 0,3 kg / 0.66 lb

Page 94 / 102

System Manual GEOM6 MSUB12

X4

TECHNICAL SPECIFICATIONSVNI-LNKM61018

Parts

X1

Dimensions

25,8
654

4,1
105

4,2
106

24,5
62

Weight: 11 kg / 22 lb

System Manual GEOM6 MSUB12

Page 95 / 102

TECHNICAL SPECIFICATIONS

GMT-6CASE

Parts

X1

Dimensions

Weight: 57 kg / 125.7 lb

Page 96 / 102

System Manual GEOM6 MSUB12TECHNICAL SPECIFICATIONS

MST-2CASEMSUB12

Parts
X1

Dimensions

Weight: 37 kg / 81.5 lb

System Manual GEOM6 MSUB12

Page 97 / 102

GEO M6 & MSUB12 MODULES & ACCESSORIES LIST

9GEO M6 & MSUB12 MODULES & ACCESSORIES LISTREFERENCEDESCRIPTIONMSUB12

12" Subwoofer Touring Version

MSUB12-I

12" Subwoofer Installation Version

GEO M620

GEO M620 Module

GEO M6B

Page 98 / 102

DRAWINGGEO M6B Module

DTD-IU

Digital TD Controller Installation Version

DTD-IN

Digital TD Controller Installation Version - Dante

DTD-TU

Digital TD Controller Touring Version

DTD-TN

Digital TD Controller Touring Version - Dante

DTDAMP4x0.7C

Power Amplifier 4x700W / 220V

DTDAMP4x0.7U

Power Amplifier 4x700W / 110V

DTDAMP4x1.3C

Power Amplifier 4x1250W / 220V

DTDAMP4x1.3U

Power Amplifier 4x1250W / 110V

NXAMP4x1mk2

Digital Powered Controller 4x1300W

NXAMP4x2mk2

Digital Powered Controller 4x2500W

NXAMP4x4mk2

Digital Powered Controller 4x4500W

NX.ES104

Ethersound Network Card for NXAMP

NX.DT104MK2

Dante Network Card for NXAMP

NX.AE104

AES Card for NXAMP

System Manual GEOM6 MSUB12

GEO M6 & MSUB12 MODULES & ACCESSORIES LISTREFERENCEDRAWINGDESCRIPTIONVNT-BUMPM6

Lifting / Stacking Bumper for GEO M6 and MSUB12

VNT-EXBARM6

Extension bar for VNT-BUMPM6

GMT-BUMPER

GMT-EXBAR

GMT-LBUMP

Main GEOM6 Bumper(up to 12 x GEO M6 maximum)

Extension bar for GMT-BUMPER

Light GEO M6 Bumper(up to 3 x GEO M6 maximum)

GMT-BPADPT-2

Stacking adaptor for GMT-BUMPER

GMT-LBPADPT

Adaptor for GMT-LBUMP

VNT-POLE

Pole Mount for GMT-LBUMP

VNT-XHBRK

Lifting ring for GMT-LBADPT (includes 8x45 Quick
Release Pin).

VNT-TCBRK

Truss clamp for GMT-LBADPT (includes 8x45 Quick
Release Pin)

VXT-BL515

5x15 Quick Release Pin for GEO M6

VXT-BL615

6x15 Quick Release Pin for MSUB12

VNT-MNSTKM6

Stacking Accessory for GEO M6 on top of MSUB12

GMT-FLG

Pair of flanges for GEO M620 120° horizontal dispersion

VNI-WS15

Wall Mount suspension for GMT-LBUMPSystem Manual GEOM6 MSUB12

Page 99 / 102

GEO M6 & MSUB12 MODULES & ACCESSORIES LIST

VNI-FIXBUMPM6
15,
88

0,2
6

Fixing kit for VNT-BUMPM6 and MSUB12

GMI-BNFIXGEO M6 Connection kit for installation

GMI-IPCOV

Connector protection for IP54 rating

VNI-LNKM61018

Adapter MSUB18-I to GEOM6

GMT-6CASE

Flight Case for 6 x GEO M6 + Hardware

MST-2CASEMSUB12

Flight Case for 2 x MSUB12

Page 100 / 102

System Manual GEOM6 MSUB12

USER NOTES

10 USER NOTES

System Manual GEOM6 MSUB12

Page 101 / 102

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System Manual GEOM6 MSUB12