3
Minimum clearances
Sufficient cooling for the amplifier and func-
tioning of the reflex port must be ensured if
the loudspeaker is installed in a restricted
space such as a cabinet, or integrated into
a wall structure. The surroundings of the
loudspeaker must always be open to the
listening room with a minimum clearance of
5 centimeters (2”) behind, above and on both
sides of the loudspeaker. The space adjacent
to the amplifier must either be ventilated or
sufficiently large to dissipate heat so that the
ambient temperature does not rise above
35 degrees Celsius (95°F).
Mounting options
The vibration insulating Isolation Positioner/
Decoupler™ (Iso-Pod™) table stand allows
tilting of the loudspeaker for correct align-
ment of the acoustic axis. The stand can be
attached to three mounting points allowing
vertical and symmetrical horizontal position-
ing (see figures 1 and 5).
Genelec 8040B and 8050B can be fitted
to Omnimount
®
Series 30 (8040B) and 60
(8050B) and König & Meyer loudspeaker
mounts on two sets of M6x10 mm threaded
holes on the back of the enclosure. On the
base of the enclosure is an M10x10 mm
threaded hole which can be used for secur-
ing the loudspeaker to its base. Do not use
this thread for mounting the loudspeaker on
a microphone stand which has a 3/8” UNC
thread.
Setting the input sensitivity
The input sensitivity of the loudspeakers
can be matched to the output of the mixing
console, or other source, by adjusting the
input sensitivity control on the rear panel
(see figure 1). A screwdriver is needed for
the adjustment. The manufacturer’s default
setting for this control is -6 dBu (fully clock-
wise) which gives an SPL of 100 dB @1m with
-6 dBu input level.
ISS
TM
autostart function
When the power switch on the loudspeaker
is set to “ON”, the Intelligent Signal Sens-
ing
TM
(ISS
TM
) autostart function of the loud-
speaker is active. Automatic powering down
to standby mode happens after a certain time
when playback has ended. The power con-
sumption in standby mode is typically less
than 0.5 watts. The playback will automati-
cally resume once an input signal is detected
from the source.
There is a slight delay in the automatic
powering up. If this is undesirable, the ISS
TM
function can be disabled by setting the “ISS
DISABLE” switch on the back panel to “ON”
position. In this mode, the monitor is pow-
ered on and off using the power switch on
the back panel.
Setting the tone controls
The frequency response of the system may
also have to be adjusted to match the acous-
tic environment. The adjustment is carried
out by setting the three tone control switch
groups “treble tilt”, “bass tilt” and “bass roll-
off” on the rear panel of the amplifier. There is
also a special “desktop low frequency” tone
control which gives an attenuation of 4 dB at
160 Hz to compensate the effect of a mixing
console, desk or other reflective surface
between the listener and the loudspeaker.
The factory settings for these controls are all
“OFF” to give a flat anechoic response.
Bass roll-off control
Bass roll-off (first switch group from the left)
affects the low frequency roll-off of the loud-
speaker and attenuates its energy output
near the cut-off frequency. Attenuation levels
of -2, -4 or -6 dB can be selected.
Figure 1. Amplifier panel layout of the 8040B
Figure 2. Location of the acoustic axis
Figure 3. RCA to XLR cable
Cable
Screen
RCA
(Source)
XLR
(Speaker)
DESKTOP
CONTROL
20Hz
160Hz
BASS
ROLL-OFF
800Hz
+2
0
-4
-6
-2
dB
BASS
TILT
OFF
ON
4kHz
20kHz
ALL OFF
TREBLE
TILT
dBu
-4
-6
0
-2
8040B BI-AMPLIFIED
MONITORING SYSTEM
MAGNETICALLY SHIELDED
MADE IN FINLAND
MAINS INPUT
50 / 60 Hz 110 W 230 V~
SERIAL NUMBER
292-80
40T-
6
www.genelec.com
+
-
GND
1
3
2
29
2-
80
40
W
WARNING
ELECTRIC SHOCK HAZARD. DO NOT OPEN. DO NOT SUBJECT TO WATER OR
PERSONNEL. USE EARTHED MAINS CONNECTION ONLY. NOTE! THIS MONITOR
MOISTURE. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED
SHOULD NOT BE MOUNTED ON A MICROPHONE STAND AS THE BASE THREAD IS M10.
ÊTRE RACCORDÉ À LA TERRE. NOTE! CE MONITEUR NE DOIT PAS ÊTRE MONTÉ
AVERTISSEMENT
SUR UN PIED DE MICROPHONE CAR LE PAS DE VIS EST DE TYPE M10.
ADRESSER TOUTE RÉPARATION À UN PERSONNEL QUALIFIÉ. CET APPAREIL DOIT
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.
LAITE ON LIITETTÄVÄ SUOJAMAADOITUSKOSKETTIMILLA VARUSTETTUUN
PISTORASIAAN. APPARATET MÅ TILKOPLES JORDET STIKKONTAKT.
APPARATEN SKALL ANSLUTAS TILL JORDAT UTTAG.
BASS
ROLL-OFF
DESKTOP
CONTROL
TREBLE TILT
BASS TILT
+4
+2
+6
INPUT SENSITIVITY
REQUIRED FOR
100dB SPL@1m
ISS
DISABLE
REFLEX PORT
TONE CONTROLS
Iso-Pod™ TABLE
STAND
THREADS FOR
CEILING AND
WALL MOUNTS
CONNECTOR PANEL
(HORIZONTAL)
ACOUSTIC
AXIS
> 0,7
m
h
8040B: h=240 mm
8050B: h=290 mm
