1234AC

Operating Manual
Genelec 1234AC
Smart Active Monitor

Genelec 1234AC Operating Manual
Introduction
Congratulations and thank you forchoosing Genelec!
Since 1978, Genelec has been guided
by a single idea – to make perfectactive monitors that deliver neutral andaccurate sound in every kind of acousticalenvironment. In Genelec’s quest for thisultimate goal, our unrivalled commitment
to research and development has led us
to continuously develop innovative drivertechnology, electronic circuitry, enclosure
designs and more. Our design philosophy isbased on sustainability and environmental
values, where industrial design serves our
products' acoustical performance.
Your Genelec product has been designed
and manufactured with care in our factory,
in Finland, using environmentally efficientsolutions to give you reliable operation
over many years.
Please take the time to read this manual.
Happy monitoring!

General Description
The Genelec 1234AC Smart Active Monitor
is designed for neutral sound reproduction
at high SPLs in large control rooms. The
system comprises of a 160 litre enclosureand a RAM-XL 19 in 3U rack mountamplifier unit.
The monitor enclosure contains two
305 mm (12 in) bass drivers, a 130 mm(5 in) midrange, and a 25 mm (1 in) treble
driver. The midrange and treble drivers aremounted in a Genelec Directivity Control
Waveguide™ (DCW™) which can berotated through ±90° for either horizontal
or vertical mounting. The system low
frequency response extends down to 29
Hz (-6 dB). The high frequency response
extends up to 21 kHz (-6 dB).
Digital signal processing in the RAM-XL
amplifier unit is done with high precisionalgorithms, and includes driver andamplifier overload protection. The room
response compensations include highly
flexible parametric filters, level alignment,
and acoustic delay compensation. These
allow accurate matching to all console
output sections and room acoustics.
The power amplifiers of the RAM-XL

produce 2 x 750 W, 400 W and 250 W ofshort term power in the bass, midrange,
and treble channels respectively.

Delivery Content
The Genelec 1234AC Smart Active Monitor
is shipped in a box containing an enclosure,an individually calibrated RAM-XL amplifier
unit, a mains connecting cable, an RJ45
cable and one Allen key.
Before installing the system, checkall items for damage and omissions. If
damage is found, contact directly the
distributor and insurance agent. If there
are any missing components, contact yourlocal dealer.

The RAM-XL amplifier is compatible withmains voltage supply of 100 - 120 VAC and220 - 240 VAC 50/60 Hz.

Operating Environment

Cables

These monitors and their RAM-XL
amplifiers are designed for indoor use
only. The permissible ambient temperature
is 15-35 degrees Celsius (50-95°F) andpermissible relative humidity between
20% and 80%. Humidity condensation on
the product is not allowed during use. For
instance, if the product has been stored ortransported in a cool environment and thentaken into a warm room, it must be allowed
to warm up to the ambient temperature
before connecting to mains power.

Each 1234AC is delivered with the following
cable kit:

Aligning the DCW• One mains cable• Two 10 m (32 ft 9 in) 4-pole Speakon
cables• One 10 m (32 ft 9 in) RJ45 cable• One 5 m (16 ft 4 in) RJ 45 cable
The 10 m cables are designed to go
between the amplifier and the monitor
enclosure. If you need to make custom
length cables for this, please connect the
Speakon cables pin to pin and see Table 1
for recommended wire gauges.

Amplifier Positioning
The RAM-XL amplifier is encased in astandard 19" 3U rack case. The coolingsystem circulates air into the amplifier
from behind, so that it exits through the
openings on the right side. Free flow offresh air must be ensured and the spacearound the amplifier must be sufficiently
ventilated to dissipate accumulating heatso that the temperature does not rise
above 15-35 degrees Celsius (50-95°F). If
the system overheats it will stop operating
until a safe temperature is reached.
Make sure that the amplifier is positioned
so that the monitor connecting cables willreach. A space 100 mm (4 in) deep shouldbe left behind the rear panel of the amplifier
unit to allow for the cable connectors andair circulation.

The 1234AC monitor is designed to be flush
mounted in either the vertical or horizontal
configuration. The DCW should be rotated
so that the treble and midrange driversalign vertically (see Figure 1). This ensuresthat optimum stereo symmetry is obtained.
IMPORTANT-The DCW plate is heavy,care must therefore be taken whenremoving and replacing the DCW. To rotate
the DCW plate, proceed as follows:• Place the monitor in its intended
listening orientation.
• Unscrew the eight M5 fixing screws on
the edges of the plate using a 4 mm
Allen key.
• Carefully pull the plate a small distanceaway from the enclosure. Rotate the
DCW so that the midrange and treble
drivers are aligned vertically (treble
driver on top) and remount the DCW
plate reversing the procedure above.

Flush Mounting of theEnclosure
Although the 1234AC may be usedsuccessfully as a free standing monitor,
flush mounting is strongly recommended
for acoustical reasons. Flush mounting
improves the bass response and efficiency
and also enhances the midrange transientand frequency response.

CLIP
PROTECT(FAULT)READY

266 mm(10 1/2 in)

CLIP
PROTECT(FAULT)READY

605 mm(23 13/16 in)

627 mm(24 11/16 in)Figure 1. The location of the acoustic axis inhorizontal and vertical configurations of theenclosure.

245 mm
(9 5/8 in)Cable gauge

Max. length

Figure 2. Monitor enclosure

2,0 mm2 (14 AWG)

30 m (100 ft)

mounting.

3,3 mm2 (12 AWG)

40 m (130 ft)

5,3 mm2 (10 AWG)

60 m (200 ft)

Table 1. Recommended cable thicknesses
for different lengths of speaker cable
The monitor enclosure has its acousticalaxis midway between the midrange andtreble drivers. This axis should be usedas the listening and measuring axis of thesystem. (See Figure 1 and 2).
The typical listening distance varies
between 2 and 3.5 m (6½ and 11½ ft) fromthe monitors. The monitor should be aimed
so that the vertical acoustical axes of thetwo monitors meet midway between thestanding and seated listening position (1.4m – 4 ft 7 in from the floor). This allows
the correct frequency response to bereceived by a standing or seated person.
The monitors should not be mounted too
high as this increases the required verticaltilt of the monitor and reduces the optimum
listening area.
The ceiling, side walls and especially therear wall should be acoustically absorbent
at low frequencies. The monitor mounting
wall should be acoustically hard andtherefore reflective. The monitor mounting
wall should be angled so that the monitors
are correctly aimed. Great care should betaken over how the monitor is mounted into
the solid and sturdy wall structure.
Note the following:
A space 50…100 mm (2…4 in) wide can beleft around the monitor enclosure.

Figure 3. Eliminating discontinuities.

Figure 4. Monitor enclosure mounting
details.

Cover the space around the enclosure
with a facing panel, this should be fixed
to the wall. Leave a gap of about 5…10mm (¼…½ in) between the enclosure andthe panel. Fill this gap with a soft rubber
gasket to allow for possible enclosure
movement. Ensure that the speaker cables
can reach the rear of the enclosure. If alight (e.g. wooden), but heavily braced,wall is used, the monitor enclosure should
be mounted on vibration isolators with aresonant frequency of around 2…8 Hz, toprevent vibrations from being transmitted
to the wall and impairing the low frequency
performance. The space around theenclosure should be filled with absorbent

mineral wool or foam plastic. The walls
must be well braced.
For a solid wall (e.g. concrete), theenclosure may be directly mounted to thewall without vibration isolators. The spacearound the enclosure should be filled withmineral wool or sand bags.
Discontinuities in the enclosure mounting
wall will cause diffraction, which leads toinferior frequency response and stereo
image. Ensure that the enclosure is flushwith the surface of the wall.
If a decorative cloth frame is used tocover the wall, make sure that the edges
adjacent to the monitor are less than 20 mm(3/4 in) deep. The cloth must be very thin

585 mm(23 in)

180 mm(7 7/8 in)

445 mm(17 1/2 in)

CLIP
PROTECT(FAULT)

READY

CLIP
PROTECT(FAULT)

CLIP
PROTECT(FAULT)

READY

READY

71 mm
(2 3/4 in)
180 mm(7 7/8 in)
238 mm(9 3/8 in)

RAM-XL

Figure 5. Recess for speaker cableconnectors (front view).

RAM-XLGLM
NETWORKGLM
NETWORKGLM
NETWORKUSB

MICROPHONE

LISTENINGPOSITION

Figure 6. GLM network cabling (audio cabling not shown)

Tricot or acoustically transparent material,otherwise the high frequency responseof the system will be adversely affected.
Genelec approved cloth grilles are available.

Recess for Cable
Connectors
The Speakon cable connectors extend 100
mm (4 in) from the rear panel of the monitor
enclosure. Therefore, a recess at least 100
mm (4 in) deep must exist to allow for thecable behind the enclosure. The locationof the recess is shown in Fig. 5. Note thatthe connectors are positioned off-centre.
Therefore, if the enclosure is rotated for aleft and right channel, the recess will beat different heights on the left and rightside. This occurs when the enclosures aremounted in the horizontal configuration.

Connecting Speaker Cables
Insert the connectors into the appropriate
sockets “WOOFER”, “MIDRANGE/TWEETER” and “LED CONNECTOR” foundon the rear panel of the amplifier unit andthe rear of the monitor enclosure. Notethat each RAM-XL amplifier is individuallycalibrated for use with the enclosure that itis delivered with and marked with the same
serial number. Do not mix these amplifier/enclosure pairs.
Insert the connectors into the sockets
and turn the connectors clockwise.

The connectors lock automatically. The
electrical connections are only made when
the connectors are fully inserted.
To remove the signal connectors pull
the release lever on the connector andturn the connector counterclockwise
simultaneously. The connector can now be
removed from the socket.

•

Set-up and Use
The 1234AC is set up using the GLM
software. The setup is fast and consists ofthe following steps:••• Link all monitors and subwoofers in adaisy-chain by running CAT5 (RJ45)
network cables from the Network
Adaptor to the "CONTROL NETWORK"
connectors of the RAM-XL modules,
and then on to the remaining monitors
in the controls room. The actual orderof the daisy-chain is not important,such that if the computer is in thecontrol room and the RAM-XL modules
are in a machine room, they can be
networked last in the chain.
• Run the final network cable to control
network input of the GLM Adapter
device.
• Connect the GLM Adapter device toyour computer USB connector. The
cable is a part of the GLM User Kit.
• Place the Genelec measurement•

microphone at the listening locationof the engineer, on a stand, with themicrophone pointing upwards andthe microphone top at the height ofthe engineers ear in normal working
position. The microphone is a part of
the GLM User Kit.
Run the microphone cable to themicrophone input in the GLM Adapter
device.
Download GLM software at the
Genelec web site (www.genelec.com).
Install the GLM software.
Follow the GLM software instructions
to measure and set up your monitors.
If you plan not to use a computer forcontrolling the monitors, use the GLM
software to write the settings into themonitors ("Store the Settings").

Recommendations for
AES/EBU Audio
For a digital input signal of –30 dB FS, the1234AC monitors will produce a 100 dB
sound level (SPL) at 1 meter distance, in
free space. The sensitivity of the monitor
system is set using the GLM software.
It is advantageous to keep the maximum
incoming digital audio signal level high,near to 0 dBFS. It may be useful to lower
the internal GLM level control. This enables
maintaining high digital resolution in thedigital source.

DIGITAL SIGNALINPUT AND THRUCONNECTORSANALOG
SIGNALINPUT
CONNECTORCONTROL
NETWORKCONNECTORSLEDCONNECTOR

COOLING FAN(GRILLE NOT SHOWN)

1 GND
2 +
3 2 3 1 IN
1 3 2 THRUDIGITAL IN
AES/EBU

ANALOGIN

DIGITAL THRU
AES/EBU

This device complies
with FCC Part 15 andCanadian ICES-003
radio frequency ClassA emission
requirements. Refer
to operating manual
for full information.

RAM-XL AMPLIFIER
MODULEwww.genelec.com
MADE IN FINLANDCONTROL NETWORKLOUDSPEAKER CONNECTORSWARNINGLED CONNECTORCONNECT ONLY TO GENELEC NETWORKSERIAL NUMBER

ELECTRIC SHOCK HAZARD. DO NOT OPEN. DO NOT SUBJECT TO WATER OR MOISTURE.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
USE EARTHED MAINS CONNECTION ONLY.

AVERTISSEMENT

Figure 7. Selecting ISS setting.

Single-wire mode of AES/EBU is thedefault and the older dual-wire mode is
automatically detected if used at the source.
The standard AES/EBU cable carries
two channels of audio, called A and B. Asa default, both A and B subchannels are
reproduced by the monitor. GLM software
is used to set up the monitor to specificchannel assignments.

RAM-XL Amplifier
Power Button
The power button in the middle of the
RAM-XL amplifier front panel controls
several functions.
A short press of the power button turns
the RAM-XL on or off. Turning on, the power
button light flashes rapidly, and lights
on steadily when the turn-on has been
completed. Testing modes are explainedlater in this manual.

Setting ISS™
The Intelligent Signal Sensing™ (ISS™)
puts the monitor to a power-saving
stand-by mode automatically. The factory
setting for ISS is "OFF." The ISS can be
activated using the GLM software (seeFigure 5). When ISS is active, if no audio
signal is sensed during the selected time,the monitor powers down. The monitor will
power up again once a signal is detected.
The ISS setting is applied to all ISS-enabledmonitors in the currently selected Setup.

Connectors on the RAM-XL“MAINS INPUT” Connector
Connect to the mains supply of 100 - 120
VAC or 220 - 240 VAC 50/60 Hz.
“DIGITAL IN AES/EBU” Connector
The monitor defaults to reproducing ananalog input signal. The digital audio
AES/EBU input is selected automatically

RISQUE DE CHOC ÉLECTRIQUE. NE PAS OUVRIR. NE PAS EXPOSER À L'EAU OU
L'HUMIDITÉ. AUCUN COMPOSANT À L'INTÉRIEUR REMPLAÇABLE PAR L'UTILISATEUR.
ADRESSER TOUTE RÉPARATION À UN PERSONNEL QUALIFIÉ. CET APPAREIL DOIT ÊTRERACCORDÉ À LA TERRE.
LAITE ON LIITETTÄVÄ SUOJAMAADOITUSKOSKETTIMILLA VARUSTETTUUN PISTORASIAAN.
APPARATET MÅ TILKOPLES JORDET STIKKONTAKT. APPARATEN SKALL ANSLUTAS TILLJORDAT UTTAG.

NOTE !
THIS AMPLIFIER HAS BEEN CALIBRATED FOR USE WITH THE LOUDSPEAKER MARKED WITH
THE SAME SERIAL NUMBER. DO NOT MIX THE CALIBRATED AMPLIFIER/LOUDSPEAKERPAIRS ! TURN OFF POWER BEFORE DISCONNECTING LOUDSPEAKER CONNECTIONS !

WOOFER

MIDRANGE / TWEETERWOOFER AND
MIDRANGE/TWEETERCONNECTORSMAINS INPUT
50 / 60 Hz 1000 W
100 - 120 V~
220 - 230 V~

MAINS INPUTCONNECTOR

Figure 8. Connector panel of the RAM-XL amplifier.

when a valid digital audio signal ispresented. Use GLM software to define
the AES/EBU subframe to monitor.

“Midrange/Tweeter” Connector
A standard four-pole Speakon cableconnects to the midrange and tweeter.

“DIGITAL THRU AES/EBU” Connector
This output carries an unaltered copy ofthe digital audio signal and can be used
for daisy-chaining the signal to up to three
additional SAM monitors or subwoofers.

CAUTION! The ”Woofer” and ”Midrange/
Tweeter” connectors on the RAM-XL
amplifier can output hazardously highvoltages. To ensure safety, the wiring
connected to these connectors must be
installed by a qualified and trained person.

“ANALOG IN” Connector
The maximum input level of the analog
input is +25.0 dBu. The analog input mustnot be overloaded, otherwise distortion
will result. When the maximum input isexceeded, the enclosure front panel lightturns red, indicating the overload.
The sensitivity of the monitor
system is set using the GLM software.
Coming from the factory, the analog
input is set to the highest sensitivity,
resulting in a sound output of 100 dB
SPL for a -6 dBu analog input signal.

Front Panel Light Functions
The green light on the DCW panel ofa 1234AC enclosure indicates normal
operation. A yellow light indicates certain
activities when the GLM control software
is used. The light turns red in an overload
condition. The overload light (red) is
activated by several events:“CONTROL NETWORK” Connectors
The RJ45 sockets connect the monitor
to the proprietary Genelec Loudspeaker
Manager™ (GLM™) network. Do notconnect to Ethernet LAN.

• Exceeding the maximum input of theanalog input• Reaching close to the digital input
maximum (high likelihood of digitalclipping)• Overload of drivers or amplifier, orclipping in the power amplifier• An error detected in the AES/EBU
audio data

“Loudspeaker Connectors” Group“LED” Connector
This RJ45 socket is a connection for thefront panel warning LED.

If a red warning light appears on themonitor, turn the source level down. Ensurethat there are no bit errors in the AES/EBU
digital audio data transmission.

“Woofer” Connector
A standard four-pole Speakon cableconnects to the woofers.

Testing Mode
Once on, when the power button is pressed
for a long time, the RAM-XL enters a modefor system testing. This special mode

Button press

Function

Short press

Power on, power off

Long press

Enter special mode, exit
special mode

Press longer than 5 seconds

Special mode: one shortpress

Mode 1: AES/EBU channel
A selected, room-related
calibration in use

Power button light blinks
once every few seconds

Short press advances

Mode 2: AES/EBU channel
B selected, room-related
calibration in use

Power button light blinks
twice every few seconds

Short press advances

Mode 3: AES/EBU channel
A selected, factory calibration in use

Power button light blinks
three times every few
seconds

Short press advances

Mode 4: AES/EBU channel
B selected, factory calibration in use

Power button blinks fourtimes every few seconds

Special selection: longpress

Once a special mode 1-4
has been selected, a longpress selects the special
mode

Press longer than 5 seconds; the RAM-XL selects
the special mode and starts
playing. To exit the special
mode turn off the amplifier.

RAM-XL exits the special
mode and turns off

Automatically happens ifuser does not press thepower button

Special mode: no press for
60 seconds

Notes

Table 2. Power button actions to activate testing modes

is intended for system debugging andtesting. When the RAM-XL is turned off,the special mode is reset. Upon restarting
the RAM-XL the current standard settings
stored by GLM software are restored.
Test mode selection blinks the power
button light (see Table 2). A special modeis activated by a long press on the power
button. In a special mode the power button
light remains on but blinks off 1-4 times
indicating the mode currently selected.
The testing modes are not intended forcontinued operation. Use GLM software to
set up permanent settings for the 1234AC.

Maintenance
Periodically check that the protective grilleon the cooling fan on the back panel of the
RAM-XL amplifier is clear of blockages.
Clean gently with a vacuum cleaner ifnecessary. Increased fan noise can be anindication of increased heat load due to a
blockage. In an extreme case the amplifier
may automatically shut off.

Safety Considerations

connectors on the RAM-XL amplifier
can output hazardously high voltages.
To ensure safety, the wiring connectedto these connectors must be installed
by a qualified and trained person.
• Note that the amplifier is notcompletely disconnected from the ACmains service unless the mains power
cord is removed from the amplifier orthe mains outlet. Easy access to either
end of the power cord must be ensured
at all times.
• Sufficient clearances and free flowof air around the RAM-XL amplifier
as defined in chapters Amplifier
Positioning and Operating Environment
are necessary to maintain sufficientcooling.

Symbols
WEEE Directive 2012/19/EU

Power/standby switch

Compliance to FCC Rules
This device complies with part 15 of the
FCC Rules. Operation is subject to thefollowing two conditions:

Although this product has been designedin accordance with international safety
standards, to ensure safe operation and tomaintain the monitor under safe operating
conditions, the following warnings andprecautions must be observed:• This device may not cause harmfulinterference, and• This device must accept any
interference received, includinginterference that may cause undesired
operation.

• Servicing and adjustment must only
be performed by a certified Genelec
service. The monitor enclosure or the
RAM-XL amplifier unit must not be
opened.
• Do not use this product with anunearthed mains cable or a mains
connection without the protective earth
contact as this may lead to personal
injury.
• To prevent fire or electric shock, do not
expose any part of the product to wateror moisture.
• Do not place any objects filled withliquid, such as vases on or near any
part of the product.
• The ”Woofer” and ”Midrange/Tweeter”

Note: This equipment has been tested
and found to comply with the limits fora Class B digital device, pursuant topart 15 of the FCC Rules. These limits
are designed to provide reasonable
protection against harmful interference ina residential installation. This equipment
generates, uses and can radiate radio
frequency energy and, if not installed andused in accordance with the instructions,
may cause harmful interference to radio
communications. However, there is no
guarantee that interference will not occur
in a particular installation. If this equipment
does cause harmful interference to radioor television reception, which can be

Figure 9. Vertical directivity characteristics of the 1234AC.
(Enclosure in horizontal configuration, measurement axis
vertical).
determined by turning the equipment off
and on, the user is encouraged to try tocorrect the interference by one or more of
the following measures:

Modifications not expressly approved by
the manufacturer could void the user’s
authority to operate the equipment under
FCC rules.

Guarantee
This product is guaranteed for a periodof two years against faults in materials
or workmanship. The guarantee can beextended by three years by registering
the product at www.genelec.com. Refer tosupplier for full sales and guarantee terms.

Genelec Oy 1234AC

3 Aug 17dB SPL

95
90

0°

15°

85

30°
80

45°

75
70

60°

65
95
dB SWL• Reorient or relocate the receiving
antenna.
• Increase the separation between theequipment and receiver.
• Connect the equipment into an outlet
on a circuit different from that to which
the receiver is connected.
• Consult the dealer or an experienced
radio/TV technician for help.

Figure 10. Horizontal directivity characteristics of the 1234AC.
(Enclosure in horizontal configuration, measurement axis
horizontal).

90
85

20

50

100

200

500

1k

2k

5k

10k

20k

Frequency Hz

Figure 11. Horizontal directivity characteristics of the 1234AC (enclosure inhorizontal configuration). The lower curve is the monitor's power response.

1234AC Operating Manual
AMPLIFIER SECTIONSYSTEM SPECIFICATIONS

1234AC

1234AC
Bass amplifier short term output power
Midrange amplifier short term output
power
Treble amplifier short term output power

2 x 750 W
400 W

Lower cut-off frequency, –6 dB< 29 Hz

Upper cut-off frequency, –6 dB> 21 kHzAccuracy of frequency response, ± 2.0
dB

34 Hz – 20 kHz

Maximum short term sine wave acoustic
output on axis in half space, averaged
from 100 Hz to 3 kHz at 1 m

125 dB SPL

Amplifier system THD at nominal output<0.003 %Maximum long term RMS acoustic
output in the same conditions withIEC weighted noise (limited by driver
protection circuit) at 1 m

120 dB SPL

Signal to Noise ratio, referred to full
outputBass
Midrange
Treble>116 dB>119 dB>115 dB

Maximum peak acoustic output per pairin a listening room with music material
at 2 m130 dB

Self generated noise level in free spaceat
2 m on axis (A-weighted)

0 dB

Mains voltage<3%< 0.5 %

Drivers
Bass
Midrange
Treble2 x 305 mm (12 in) cone
125 mm (5 in) cone
25 mm (1 in) metal dome

6W
40 W
1000 W
2500 W

SIGNAL PROCESSING SECTION

All drivers are magnetically shielded
Monitor enclosure weight

79.5 kg (175 lb)

Amplifier weight

11.2 kg (25 lb)

Amplifier dimensions
HeightWidth (front plate)
Width (casing)
Depth100-120, 220-240 VAC
50/60 HzPower consumption
Standby
Idle
Full output, long term
Full output, peakHarmonic distortion at 95 dB SPL at 1
m on axis
Freq: 50…200 Hz> 200 Hz

Monitor enclosure dimensions
Height
Width
Depth

250 W

Long term output power is limited by driver protection circuitry

489 mm (191/4 in)

1210 mm (475/8 in)
412 mm (161/4 in)Analog signal input connector XLR
female, balanced 10 kOhm

pin 1 gnd
pin 2 non-inverting,pin 3 inverting

Maximum analog input signal
Analog input sensitivity (100 dB SPL at
1 m)
Analog input gain selection+25.0 dBu
-6 dBu0, +6, +12, +18 dB

Digital signal input connector XLR
female 110 Ohm

AES/EBU Single Wire orDual Wire

Digital signal output / Thru connector
XLR male 110 Ohm

AES/EBU Single Wire orDual Wire

Digital audio input
Word length
Sample rate
Digital input sensitivity(100 dB SPL at 1 m )Digital input gain selection

3U 132 mm (53/16 in)
483 mm (19 in)
425 mm (163/4 in)
286 mm (111/4 in)

1234AC

16 - 24 bits
32 - 192 kHz-30 dBFS
0, +6, +12, +18 dB

Control network
Type
Connection

Proprietary GLM™ network
2 RJ45, CAT5 cables

Crossover frequency
Bass/Mid
Mid/Treble

420 Hz3.2 kHz

GLMTM software frequency response
adjustment
Notch filters
Shelving filters

4 LF and 2 HF
2 LF and 2 HF

System calibration

Genelec GLM AutoCal™

www.genelec.com

Genelec Document D0127R001a Copyright Genelec Oy 8.2017. All data subject to change without prior noticeInternational enquiries:

In the U.S. please contact:

In China please contact:

Genelec, Olvitie 5

Genelec, Inc., 7 Tech Circle

Beijing Genelec Audio Co.Ltd

FIN-74100, Iisalmi, Finland

Natick, MA 01760, USA

Room 101, 1st floor

Phone +358 17 83881

Phone +1 508 652 0900

Building 71 B33, Universal Business ParkFax +358 17 812 267

Fax +1 508 652 0909

Email genelec@genelec.com

Email genelec.usa@genelec.com

No. 10 Jiuxianqiao Road, Chaoyang District
Beijing, China
Phone +86 (10) 5823 2014
Post code: 100015
Email genelec.china@genelec.com