8341A

Smart Active Monitor
Operating ManualIntroduction

Acoustically Concealed Woofers (ACW™)

Thank you for choosing a Genelec product! Fulfilling dreams byoffering people the most truthful sound reproduction possible
has been the source of our enthusiasm since 1978. There´salready over one million Genelec monitors around the world welcome to our story!
All Genelec monitors are designed, hand assembled andtested at our factory in Iisalmi, Finland. Our monitors are designed
to last for decades and we take care that our customers receive
excellent support and technical services throughout the life-timeof the products.
Please register your monitor at http://www.community.
genelec.com/. You will receive an extended 5 year warranty
for spare parts. For more information about our service andtechnical support see
http://www.genelec.com/customer-service.

A pair of nearly invisible woofers in the 8341A are placed
acoustically coaxially with the midrange/tweeter drivers tocreate a three-way system with all drivers having their acousticalaxes in the same position. This creates an ideally working point
source radiator.

System Characteristics

Audio Inputs

Each 8341A is supplied with one mains power cable, one
5-meter GLM network cable and this operating manual.
The Genelec 8341A is suitable for professional monitoring
applications calling for very high precision and reliability.
It combines many remarkable Genelec technologies toprovide point source benefits with directivity control over an
extraordinarily wide audio bandwidth.

Genelec Loudspeaker Manager™ (GLM™)
Software And GLM User Kit
The GLM software gets the most out of 8341 and tailor-fits it toyour room. GLM is available for download free of charge at www.
genelec.com/glm. Check in from time to time to take advantageof new features, or consider using the cloud-based version. A
GLM User Kit comprising the necessary hardware, including the
GLM Adapter and measuring microphone is needed for building
and operating the GLM network. This kit can be purchased at all
certified Genelec dealers.

Minimum Diffraction Coaxial (MDC™)

The minimum diffraction coaxial driver is comprised of a powerful
midrange driver combined with a tweeter driver extending toultrasonic frequencies. This unique arrangement eliminates orminimizes acoustic diffraction sources that typically exist in
coaxial drivers and produces a flat frequency response both on
the acoustical axis and at all off-axis directions.
The 8341 may be oriented either horizontally or vertically andis intended for near-field listening where the influences of theroom can be mostly minimized. Typical distances can vary from
1 meter or less to 3 meters depending on room size and SPL
requirements.

Directivity Control Waveguide (DCW™)

The 8341A has an unusually large directivity control waveguide
extending over the whole front face of the enclosure. The
midrange driver cone also forms a part of the directivity control
waveguide for the tweeter. From behind the waveguide, twowoofers radiate audio through two openings in the enclosure
front. This unique design enables directivity control of all audio
frequencies down to low bass.

2

Smart Active Monitor (SAM™)

Genelec SAM technology can improve the reliability and accuracyof monitoring. Smart Active Monitors have several parametricnotch and shelving filters that can be tuned automatically using
the Genelec Loudspeaker Manager (GLM) software to exactlycompensate for colorations generated by room acoustics. This
enables SAM monitors to sound neutral and achieve accuratestereo imaging in all acoustical environments.

The 8341A’s audio inputs are designed to integrate easily into
all professional environments, supporting balanced line levelanalog and AES/EBU format digital signal. The maximum analog
input level is +25 dBu (13.7 Vrms or 19.5 V peak). Set to the
maximum sensitivity, an analog input signal of -6 dBu produces
100 dB SPL sound level at 1 meter in free space. A -30 dBFS
digital audio input level produces 100 dB SPL level at 1 meterin free space. Note that 0 dBFS refers to the largest possible
digital input value.
Analog input is selected when the AES/EBU signal input is notconnected. The AES/EBU format digital audio input is selected
automatically when a valid digital audio signal is present. Please
note that this digital audio signal may be silence. This automatic
audio signal input selection can be overridden when the 8341A
is controlled with the GLM network, enabling flexible selectionof either input.
When using a digital audio source with adjustable level, it
may instead be advantageous to lower the output level of the
8341A using the monitors on-board rear panel controls. This
enables the use of a higher source output level with more digital
resolution, while taking full advantage of 8341’s impressively
low self generated noise.
The AES/EBU input supports two channels of audio in asingle cable. The DIGITAL OUT male XLR connector carries anunaltered copy of the digital input signal. This enables daisychaining of up to four monitors. The proper digital channel canbe selected using DIP switches or GLM.

Power Management

The 8341A mains power input supports any mains voltage
globally (100-240 VAC, 50-60 Hz). It can be plugged in anywherein the world and will always deliver the maximum output power
to the drivers even when the mains voltage fluctuates. If mains
power is provided with a generator, inverter or lower-quality UPS
device, we recommend filtering out harmonics from the mains
power voltage.
The energy saving function Intelligent Signal Sensing (ISS™)
puts the monitor automatically into a deep sleep state when no
input signal is present. The device then consumes less than
one watt of power. Upon sensing an input signal, the monitor
automatically awakens. The wait time until entering the powersaving state can be configured using the GLM software. WhenISS is active, you can leave your monitors on at all times andMICROPHONE
PLACED IN
THE LISTENING
POSITIONCOMPUTERRUNNINGGLM SOFTWARE

292-0063

GLM ADAPTERGLMTERMINATOR

USB CABLESUBWOOFER

GLM NETWORKCABLEMONITORS

Figure 1. GLM control network cabling

ROTARY LEVELCONTROLDIP SWITCHES FOR
STAND-ALONE USE

20

800

4k

20k

LED DISABLEISSA
DIGITALB-10 dB-20 dBSTORED(dB)

TREBLE
TILT

LEVEL

BASS
TILT
DESKTOPBASS
ROLL-OFF160-2-4
DESKTOP 160 Hz -4-2
BASS TILT-4+2
TREBLE TILT-4

ALL OFF-6-2

BASS ROLL-OFF

COAXIAL TRI-AMPLIFIED
SMART ACTIVE MONITOR
+2
0
-2
-4
-6
dB

POWER
SWITCH

-4

ON
OFF

0

dBu

+2

+6
+4

INPUT dBu
PRODUCING
100 dB SPL (1 m)

RESET TO FACTORYSETTINGS: PUSH
BUTTON FOR 10 SEC

Frequency (Hz)MAINS INPUT
50 / 60 Hz 200 W
100 - 240 V~

GLM
NETWORKSERIAL NUMBER

GLM NETWORKCONNECTORSDIGITAL IN
AES/EBU
This device complies
with FCC Part 15 andCanadian ICES-003
radio frequency
Class B emission
requirements. Refer
to operating manual
for full information.

DIGITAL THRU
AES/EBU

AUDIO SIGNALCONNECTORS:ANALOG
IN

8341A
MADE IN FINLAND
www.genelec.com

292-8350T-6

MAINS
INPUT

-DIGITAL IN-DIGITAL THRU
-ANALOG IN

Figure 2. Connectors and controls on the back panel of a 8341A.

have the monitoring system immediately ready for action. The
default wait time when ISS is enabled using the ISS DIP switch
is 60 minutes.

Setup Using The
GLM™ Control Network
Although the 8341A can be used without the GLM software andcontrol network, it can only reach its full potential when set up
and calibrated using GLM software, running on a Mac or PC.
Genelec therefore recommends setting up the 8341A

Figure 3. Connector panel detail.

and other SAM monitors using GLM. You can find a detailed
description of the setup and the use in the GLM System
Operating Manual.
The GLM software and the proprietary Genelec monitor
control network offer automated acoustic equalization andalignment for any reproduction system from mono over stereo
to complex 3D immersive audio setups, including also one ormore subwoofers. GLM includes AutoCal, an expert algorithm
built on data from thousands of professional listening rooms.
Setup with the GLM User Kit consists of the following steps:
1. Connect a CAT5 (RJ45) cable between each monitor (andsubwoofer) and finally to the control network input of the
GLM Adapter device (see Figure 1).
2. Connect the GLM Adapter device to computer USB connector.
3. Using a microphone stand, place the Genelec measurement
microphone at the listening location with the microphone
pointing upwards and the microphone top at the height ofthe engineer’s ear. The microphone is a part of the GLM
3

h2

h1
ACOUSTIC
AXIS

ACOUSTIC
AXIS

h1 = 195 mm (7 11/16 in)
h2 = 138 mm (5 7/16 in)Figure 4. The location of the acoustic axis.

User Kit.
4. Connect the microphone cable to the microphone input in
the GLM Adapter device.
5. Download the GLM software at the Genelec web site (www.
genelec.com). Install the GLM software and follow the
instructions in the software to measure and set up yourmonitors.
6. If you plan to not use a computer for controlling themonitors, use the GLM software to write the settings into
the monitors (use menu item “Store | Store the Current
Group Settings…”).
The GLM network may also be used for monitor control switching between sets of loudspeakers, solo, mute, invoking
calibrated levels etc. - or settings can be permanently stored in
all monitors for a static and predictable setup. If so, a computeris only needed for the setup.
If the network is disconnected, settings stored using the GLM
software can be enabled by setting the DIP switch “Stored” to ON.
The CONTROL NETWORK RJ-45 connectors are used for
the GLM network. These connectors are not Ethernet LAN
compatible. Do not connect to an Ethernet LAN.

Setup Without Using The GLM

When GLM is not available, you can still adjust the 8341A for
placement in a room by using the DIP switches on the back of themonitor. Settings are more limited but nevertheless provide thefundamental equalizers to compensate for the acoustical effectsof the listening room, input selections and input sensitivity. To use
this method, ensure that the GLM management network is notconnected and set the DIP switch “Stored” to its OFF position.

Stand-Alone Control Functions
Bass Roll-Off Control

The Bass Roll-Off control attenuates the monitor’s output near
the cut-off frequency. Attenuation levels of -2 dB, -4 dB or -6 dB(both switches ON) can be selected by combining settings on
one or more switches. This setting may be needed to control thebass level in spaces with strong low frequency reverberance.

4

Figure 5. Symmetrical layout and keeping the acoustic axis clear
from obstructions minimizes reflection surfaces and maintains
accurate localisation because reflections are symmetrical.

Monitor
Mounting Position

Treble
Tilt

Bass
Tilt

Bass
Roll-Off

Desktop

Flat anechoic
response

None

None

None

None

Free standing ina damped room

None

-2 dB

None

None

Free standing ina reverberant room

None

-4 dB

None

None

Near field ona reflective surface

None

-2 dB

None

-4 dB

In a corner

None

-4 dB

-4 dB

None

Table 1. Suggested Tone Control settings for some typical monitor
placement positions.

Desktop reflection compensation
The desktop low frequency control attenuates the bass
frequencies around 160 Hz by 4 dB. This feature is designed tocompensate for the boost occurring often when the monitor isplaced upon a meter bridge, table or similar reflective surface.

Bass Tilt Control

The Bass Tilt control switches offer three attenuation levels forthe bass response below 800 Hz. The attenuation levels are -2
dB, -4 dB and -6 dB (both switches ON). This control is usuallynecessary when the monitors are placed near room boundaries
such as at the wall or close to a room corner.

Treble Tilt Control

The Treble Tilt control allows adjusting the high frequency
response above 5 kHz by +2 dB, -2 dB or -4 dB, which canbe used for correcting an excessively bright or dull sounding
system or to compensate for the high frequency level loss whenthe monitor is placed behind a screen.

LED Disable

This switch shuts off the front panel LED light.

Colour

Indication

Solid greed

Normal state, normal operation

Blinking green

GLM is adjusting the monitor

Green blink every 10 sec.

Monitor is in an ISS power saving sleepstate

Red blink

Power amplifier overload protection is
active (audio is modified because ofprotection)

Solid red

Monitor is muted

Yellow

Monitor is not in the active (playing)group

Yellow blinking

Overheat protection is active (audio is
modified because of protection)

Table 2. Monitor front panel light indications summary

ISS
This switch activates or deactivates the ISS automatic powersaving function. The default time for ISS activation is 60 minutes,
but the time can be adjusted in the GLM software.

DigitalThe Digital switch selects the digital audio channels on the
AES/EBU. Turning both switches on reproduces the sum of the
A and B channels. When both channels are selected 6 dB ofattenuation is applied to avoid overloading the monitor.

Level

The Level switches reduce the monitor output in 10 dB steps(-10 dB, -20 dB and with both switches set to ON, -30 dB). The
effects of these switches combine with the effect of the rotarylevel adjustment control. The total setting range is 42 dB.

StoredThe Stored switch selects between the application of theabove listed controls on the monitor’s back panel and applying
the settings stored inside the monitor memory using the GLM
calibration software. Setting the Stored switch to the OFF position
selects the settings defined by the monitor’s controls. Setting theStored switch to ON position selects the use of internally stored
GLM settings and the adjustments on the monitor have no effect.

Operating Environment

This product is designed for indoor use only. The permissible
ambient temperature is 15-35 degrees Celsius (50-95°F) andrelative humidity 20% to 80% (non-condensing). To prevent
condensation of humidity, after the product has been stored
or transported in a cool environment and is then taken into a
warm room, wait 0.5-1 hours before opening the packaging andconnecting to the mains power.
Sufficient cooling around the 8341A must be ensured. The
minimum clearance behind, above and on both sides of themonitor is 50 mm (2 in). If the product is installed in a recess,the space must be ventilated sufficiently to dissipate the heat.

Mounting And Placing Monitors
Mounting Options

The vibration insulating Isolation Positioner/Decoupler™ (IsoPod™) table stand allows tilting of the monitor. The standFigure 6. Placing the Iso-Pod stand when the monitor is used inhorizontal position.

spring can be attached to three mounting points on the 8341A
enclosure, allowing the Iso-Pod to be used on one verticaland two horizontal positions. With horizontal positioning, theIso-Pod must be at it’s furthest forward position (See Figure
6).
Aim the monitor so that its acoustic axis points towards thelistening position (see Figure 4). Place the monitors symmetricallyat equal distances from the listening position. If possible, place
the listening position on the left-right centerline of the room(see Figure 5). When a monitor is placed far away (1.0-2.2 m,
3-7 ft) from the acoustically hard wall behind the monitor, an
acoustic reflection from the wall may cause cancellation of low
frequencies and reduce the bass output.
Minimize reflections by placing the monitors away fromacoustically reflective surfaces. Acoustic reflections fromobjects like desks, cabinets and computer monitors cancause unwanted coloration and blurring of the sound image.
Putting the monitors on stands behind and above a mixing
console usually improves the response over placing monitors
on a meter bridge. Symmetrical positioning of the soundreflecting objects maintains a balanced soundstage (seeFigure 5).
A wide variety of ceiling and wall mounts are available
through your Genelec dealer. Genelec 8341A can be fitted with
König & Meyer monitor mounts using two M6 x 10 mm threadedholes on the enclosure back. There is an M10 x 10 mm threadedhole in the base of the monitor. Do not use the M10 thread for
mounting the monitor on a microphone stand. Monitor stands
typically have an incompatible 3/8 in UNC thread. Consult the
Genelec Accessories Catalogue at www.genelec.com or yourlocal distributor/dealer for information.

Front Panel Light

Normally, the light on the front panel is green, indicating normal
operational mode. Red and yellow colours are used to indicate
special situations. See Table 2.

Use With Subwoofers

In situations requiring deeper fundamental response or
multichannel bass management, Genelec recommends
using the 7300 series subwoofers. For more detailed system
configuration and matching products, please consult the on-line
Genelec Product Selection Tool at www.genelec.com.

Maintenance

There are no user serviceable parts inside the monitor.
Maintenance or repair must only be done by Genelec certified
5

service personnel. The monitor enclosure must not be opened.
Opening the monitor may lead to loss of the individual monitor
factory calibration and damage to components.

necessary to maintain sufficient cooling. Do not obstruct
airflow around the monitor.

Safety Considerations

The 8341A is capable of producing sound pressure levels inexcess of 85 dB, which may cause hearing damage. Sound
exposure level integrated over an 8 hour working day should
be limited to 80 dB(A) to reduce the risk of permanent hearing
damage. For each 3 dB increase in sound exposure, half the
exposure time should be observed (equal energy).

• Servicing and adjustment must only be performed bycertified Genelec service personnel. The monitor enclosuremust not be opened.
• Do not use this product with an unearthed mains cableor a mains connection without the protective earth contact
as this may lead to personal injury.
• To prevent fire or electric shock, do not expose the unit
to water or moisture.
• Do not place any objects filled with liquid, such as vaseson the monitor or near it.
• Note that the amplifier is not completely disconnectedfrom the AC mains service unless the mains power cord isremoved from the monitor loudspeaker or the mains outlet.
• Free flow of air behind and around the monitor is

Guarantee

Although the 8341A has been designed in accordance withinternational safety standards, to ensure safe operation andto maintain the monitor under safe operating conditions, thefollowing warnings and precautions must be observed:

The Genelec 8341A is guaranteed for two years against
manufacturing faults or defects altering performance. Refer tothe reseller for full sales and guarantee terms.

Compliance To FCC Rules

Note: This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses andcan radiate radio frequency energy and, if not installed andGenelec Oy 8341

15 May 2017

11 Mar 17

95

dB SPLdB SPL

Genelec Oy 8341A

WARNING!

90

90

0° 15°85

85

DESKTOP LF

90 80

30°

80

45°

75

85

60°

70

80 90

BASS TILT
95 65

85

TREBLE TILTBASS ROLL-OFF

dB SWL

90

80

85
80

20

50

100

200

500

1k

2k

5k

10k

20k

Frequency Hz

20

50

100

200

500

1k

2k

5k

10k

Figure 7. The curves above show the effect of the “Bass Tilt”,“Treble Tilt”, “Desktop Low Frequency” and “Bass Roll-Off” controlson the free field response of the 8341A.

Figure 8. Frequency responses at 0, 15, 30, 45 and 60 degree
angles and power response in full space. Input level -20 dBu.

Figure 9. The curves above show the horizontal directivity
characteristics of the 8341A.

Figure 10. The curves above show the vertical directivity
characteristics of the 8341A.

6

20kFrequency Hz

Genelec Oy 8341

16 May 2017

ms

40
35
30
25

used in accordance with the instructions, may cause harmfulinterference to radio communications. However, there is
no guarantee that interference will not occur in a particularinstallation. If this equipment does cause harmful interference
to radio or television reception, which can be determined byturning the equipment off and on, the user is encouraged totry to correct the interference by one or more of the following
measures:20• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment andreceiver.
• 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.

15
10
5
0

50

100

200

500

1k

2k

5k

10k

20k

Frequency Hz

Figure 11. The curve above shows the delay variation of the 8341A
as a function of frequency.

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

SYSTEM SPECIFICATIONS
Lower cut-off frequency, –6 dB< 38 Hz

Upper cut-off frequency, –6 dB> 37 kHzAccuracy of frequency response, ± 1.5 dB

45 Hz – 20 kHz

Maximum short term sine wave acoustic output on axis in half space, averaged from100 Hz to 3 kHz at 1 m≥ 110 dB SPL

Maximum long term RMS acoustic output in the same conditions with IEC weighted
noise (limited by driver protection circuit) at 1 m

101 dB SPL

Maximum peak acoustic output per pair in a listening room with music material at 1 m

118 dB

Self generated noise level in free space at 1 m on axis (A-weighted)≤ 3 dB

Harmonic distortion at 90 dB SPL at 1 m on axis
Freq:
50…100 Hz> 100 Hz<2%
< 0.5 %

Drivers
Bass
Midrange
TrebleDual 170 x 90 mm (65/8 x 31/2 in) oval cones
90 mm (31/2 in) cone (coaxial)
19 mm (3/4 in) metal dome (coaxial)

Weight9.8 kg (22 lb)

Dimensions
Height including IsoPod standHeight without IsoPod
Width
Depth

370 mm (1313/16 in)
351 mm (149/16 in)
237 mm (93/8 in)
243 mm (91/2 in)

AMPLIFIER SECTION
Bass amplifier short term output power
Midrange amplifier short term output power
Treble amplifier short term output power(Long term output power is limited by driver protection circuitry)

250 W
150 W
150 W

Amplifier system THD at nominal output<0.05%

Mains voltage

100-240 VAC 50/60 Hz

Power consumption
ISS active
Idle
Full output (short term)< 0.5 W
16 W
250 W

7

SIGNAL PROCESSING
8341A
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 sensitivity control+24.0 dBu
-6 dBuAdjustable from +36 to -6 dBu

Digital signal input connector XLR female 110 Ohm
Digital signal output / Thru connector XLR male 110 Ohm

AES/EBU Single Wire
AES/EBU Single Wire

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

16 - 24 bits
32 - 192 kHz-30 dBFS
42 dB

Control network
Type
Connection

Proprietary GLM™ network
2 RJ45, CAT5 cables

Crossover frequencies
Bass/Mid
Mid/Treble

500 Hz3 kHz

GLMTM software frequency response adjustment*
Parametric notch filters
Shelving filters

16
2 LF and 2 HF

System room response calibration

Genelec GLM AutoCal™, GLMTM manual, Stand-alone** The notch and shelving filters adjustments, AutoCal

TM

and GLMTM

manual system calibration features are part of the Genelec Loudspeaker Manager (GLMTM) software

www.genelec.com

Genelec Document D0128R001 Copyright Genelec Oy 4.2017. All data subject to change without prior notice.
International enquiries:

In the U.S. please contact:

In Sweden please contact:

In China please contact:

Genelec, Olvitie 5

Genelec, Inc., 7 Tech Circle

Genelec Sverige

Beijing Genelec Audio Co.Ltd

FIN-74100, Iisalmi, Finland

Natick, MA 01760, USA

Ellipsvägen 10B

Phone +358 17 83881

Phone +1 508 652 0900

P.O. Box 2306

Fax +358 17 812 267

Fax +1 508 652 0909

S-127 02 Skärholmen

Email genelec@genelec.com

Email genelec.usa@genelec.com

Phone +46 8 449 5220
Fax +46 8 708 7071
Email info@genelec.com

B33 - 101
Universal Business ParkNo. 10 Jiuxianqiao Road
Chaoyang District
100015 Beijing, China
Phone +86 (10) 5823 2014, 400 700 1978
Email genelec.china@genelec.com