the three tone control switch groups ‘treble
tilt’, ‘bass tilt’ and ‘bass roll-off’ on the rear
panel of the amplifier. The factory settings
for these controls are ‘All Off’ to give a flat
anechoic response. See Table 1 for sug-
gested tone control settings. Figure 5 shows
the effect of the controls on the anechoic
response. Always start adjustment by setting
all switches to ‘OFF’ position. Then set only
one switch to the ’ON’ position to select the
response curve needed. If more than one
switch is set to ‘ON’ (within one switch group)
the attenuation value is not accurate.
Vertical / horizontal mounting
The speakers are normally delivered set
up for vertical mounting. Horizontal mount-
ing should be avoided due to the increased
likelihood of early reflections that degrade
the the direct sound. If horizontal mounting
is needed the DCW plate may be rotated so
that the Genelec logo remains horizontal by
removing the four corner screws of the DCW
and carefully lifting and turning the DCW.
Console top mounting
If the 1031A’s are used for near field monitor-
ing, avoid mounting them on the meter bridge
of the console. Instead position the speakers
slightly behind the console by using floor
stands or wall mounts. This prevents the
first reflections from the console surface from
coloring the sound.
Overload indicators
The speaker is provided with two status
LED's marked 'OVL' and 'ON'. The green
ON-LED when lit indicates that the speaker
is ready for use. The red OVL-LED indicates
that the amplifier is overloaded or the driver
protection circuit is activated. In both cases
reduce the signal level so that the LED stops
blinking. If the OVL-LED stays on constantly it
indicates that the amplifier thermal protection
is activated. Let the amplifier cool down and
check that the ventilation at the rear side of
the speaker is not blocked. There should be
a clearance of more than 4" (10cm) between
speaker rear and any solid surface.
Maintenance
No user serviceable parts are to be found
within the amplifier unit. Any maintenance
or repair of the 1031A unit should only be
undertaken by qualified service personnel.
Safety considerations
Although the 1031A has been designed
in accordance with international safety
standards, to ensure safe operation and to
maintain the instrument under safe operating
conditions, the following warnings and cau-
tions must be observed:
1. Servicing and adjustment must only
be performed by qualified service
personnel. The amplifier’s rear panel must
not be opened.
2. Do not use this product with an
unearthed mains cable as this may lead to
personal injury.
3. 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 vases on the speaker or near it.
4. Note that the amplifier is not
completely disconnected from the AC
mains service unless the mains power
cord is removed from the amplifier or the
mains outlet.
WARNING!
This equipment is capable of producing sound
pressure levels in excess of 85 dB, which
may cause permanent hearing damage.
Accessories
Order code
Protective grille
1031-409
Wall mount
1031-404-V/H*
Floor stand
1031-405-V/H*
*State the desired speaker orientation
V=vertical or H=horizontal when ordering
these accessories.
Guarantee
This product is supplied with one year guar-
antee against manufacturing faults or defects
that might alter the performance of the 1031A
unit. Refer to supplier for full sales and guar-
antee terms.
Figure 1. Amplifier panel layout of the 1031A
Figure 2. Location of the acoustic axis
Speaker Mounting
Position
Treble tilt
Bass tilt
Bass roll-off
Flat anechoic response
None
None
None
Free standing in a damped room
None
-2 dB
None
Free standing in a
reverberant room
None
-4 dB
-2 dB
Near field or console bridge
None
-4 dB
-4 dB
In a corner
None
-4 dB
-4 dB
Table 1. Suggested tone control settings in some typical situations
Figure 3. RCA to XLR cable
Cable
Screen
RCA
(Source)
XLR
(Speaker)
20Hz
600Hz
BASS ROLL-OFF
20Hz
100Hz
f
1031A BI-AMPLIFIED MONITORING SYSTEM
GENELECR
ELECTRIC SHOCK HAZARD!
IT IS FORBIDDEN TO UNDO ANY SCREWS ON THIS EQUIPMENT. SERVICING AND ADJUSTMENT
MUST ONLY BE CARRIED OUT BY QUALIFIED SERVICE PERSONNEL.
ENSURE THAT THE CORRECT VOLTAGE AND APPROPRIATE FUSE ARE SELECTED BEFORE
CONNECTING TO THE MAINS SUPPLY.
THIS EQUIPMENT IS CAPABLE OF PRODUCING SOUND PRESSURE LEVELS IN EXCESS OF 85dB
WHICH MAY CAUSE PERMANENT HEARING DAMAGE.
NEVER OPERATE THIS EQUIPMENT WITHOUT A PROPER EARTHED MAINS CONNECTION.
DISCONNECT THE MAINS INPUT BEFORE REPLACING THE FUSE.
1
SIGNAL INPUT
WARNING
MAINS INPUT
50 / 60 Hz
150 Watts
115 / 230 V
ON
˜
MAINS
VOLTAGE
SELECTOR
SERIAL
NUMBER
OFF
ON
OFF
ON
+4
OFF
ON
-4
INPUT SENSITIVITY
dBu
3
-6
+6
PIN 1 = GROUND
PIN 2 = + INPUT
PIN 3 = - INPUT
INPUT SENSITIVITY
REQUIRED FOR 100dB
SPL@1m. REFER TO
OPERATING MANUAL
FOR MAXIMUM SPL.
2
-2
+2
0
-2
-4 dB
-6
-8
-2
-4 dB
-6
MUTE
-8
0
-2
-6
-4
dB
ALL OFF
4kHz
20kHz
ALL OFF
TREBLE TILT
-2 dB
-4
MUTE
+2
0
-4
-2
+2
dB
BASS TILT
-6
0
-4
-2
dB
ALL OFF
MAGNETICALLY SHIELDED
MADE IN FINLAND
FOR ACCURATE
OPERATION ONLY ONE
SWITCH IN EACH TONE
CONTROL GROUP SHOULD
BE ON AT A TIME.
FOR A FLAT FREE FIELD
RESPONSE SET ALL TONE
CONTROLS TO OFF.
CAL POSITION
ALL CONTROLS : OFF
INPUT SENSITIVITY : -6dBu
USING THE TONE
CONTROLS
REFER TO THE OPERATING
MANUAL FOR SUGGESTED
TONE CONTROL SETTINGS.
TREBLE TILT
CONTROL
BASS TILT
CONTROL
BASS ROLL-OFF
CONTROL
INPUT SENSITIVITY
CONTROL
INPUT
CONNECTOR
MAINS VOLTAGE
SELECTOR
(WHERE
APPLICABLE)
MAINS SWITCH
MAINS CONNECTOR
290
m
m
495 mm
320 mm
290 mm
