Operating Manual
Monitoring System
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Speaker Mounting
Position
Treble tilt
Bass tilt
Bass roll-off
TREBLE TILT
CONTROL
Flat anechoic response
None
None
None
None
-2 dB
-4 dB
None
None
-2 dB
TREBLE TILT
dB
BASS TILT
ALL OFF
USING THE TONE
CONTROLS
dB
+2
0
0
-2
-4
-6
ALL OFF
OFF ON
+2
-2 dB
-4
REFER TO THE OPERATING
MANUAL FOR SUGGESTED
TONE CONTROL SETTINGS.
-2
-4
Free standing in a damped room
BASS TILT
CONTROL
MUTE
FOR ACCURATE
4kHz
20kHz
20Hz
600Hz
OPERATION ONLY ONE
SWITCH IN EACH TONE
CONTROL GROUP SHOULD
Free standing in a
reverberant room
OFF ON
-2
-4 dB
-6
MUTE
BE ON AT
A
TIME.
BASS ROLL-OFF
CONTROL
OFF ON
FOR
A
FLAT FREE FIELD
BASS ROLL-OFF
dB
-2
-4 dB
-6
-8
RESPONSE SET ALL TONE
CONTROLS TO OFF.
ALL OFF
0
Near field or console bridge
In a corner
None
None
-4 dB
-4 dB
-4 dB
-4 dB
+4
+6
-2
-4
-6
-8
INPUT SENSITIVITY
REQUIRED FOR 100dB
SPL@1m. REFER TO
OPERATING MANUAL
FOR MAXIMUM SPL.
+2
0
INPUT SENSITIVITY
CONTROL
dBu
CAL POSITION
-6
-2
ALL CONTROLS
INPUT SENSITIVITY
:
OFF
-6dBu
-4
20Hz
100Hz
:
INPUT SENSITIVITY
2
INPUT
CONNECTOR
PIN
PIN
PIN
1
2
3
=
=
=
GROUND
3
Table 1. Suggested tone control settings in some typical situations
+
-
INPUT
INPUT
1
SIGNAL INPUT
MAINS VOLTAGE
SELECTOR
MAINS
VOLTAGE
SELECTOR
(WHERE
APPLICABLE)
MAINS INPUT
50 60 Hz
150 Watts
115 230
/
/
V
˜
GENELECR
MAINS CONNECTOR
MAINS SWITCH
1031A BI-AMPLIFIED MONITORING SYSTEM
MAGNETICALLY SHIELDED
MADE IN FINLAND
f
ON
SERIAL
Cable
NUMBER
ELECTRIC SHOCK HAZARD!
WARNING
IT IS FORBIDDEN TO UNDO ANY SCREWS ON THIS EQUIPMENT. SERVICING AND ADJUSTMENT
MUST ONLY BE CARRIED OUT BY QUALIFIED SERVICE PERSONNEL.
NEVER OPERATE THIS EQUIPMENT WITHOUT
A
PROPER EARTHED MAINS CONNECTION.
DISCONNECT THE MAINS INPUT BEFORE REPLACING THE FUSE.
Screen
ENSURE THAT THE CORRECT VOLTAGE AND APPROPRIATE FUSE ARE SELECTED BEFORE
CONNECTING TO THE MAINS SUPPLY.
RCA
(Source)
XLR
(Speaker)
THIS EQUIPMENT IS CAPABLE OF PRODUCING SOUND PRESSURE LEVELS IN EXCESS OF 85dB
WHICH MAY CAUSE PERMANENT HEARING DAMAGE.
290 mm
320 mm
Figure 2. Location of the acoustic axis
Figure 3. RCA to XLR cable
Figure 1. Amplifier panel layout of the 1031A
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.
2. Do not use this product with an
unearthed mains cable as this may lead to
personal injury.
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.
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!
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.
This equipment is capable of producing sound
pressure levels in excess of 85 dB, which
may cause permanent hearing damage.
Maintenance
Accessories
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.
Order code
Protective grille
Wall mount
1031-409
1031-404-V/H*
1031-405-V/H*
Floor stand
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:
*State the desired speaker orientation
V=vertical or H=horizontal when ordering
these accessories.
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.
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.
1. Servicing and adjustment must only
be performed by qualified service
personnel. The amplifier’s rear panel must
not be opened.
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1031A Operating Manual
AUDIO PRECISION 1031anec LEVEL(dBr) vs FREQ(Hz)
100
07 SEP 93 11:21:58
AUDIO PRECISION 1031anec LEVEL(dBr) vs FREQ(Hz)
110
07 SEP 93 10:04:11
95
105
100
95
0°
90
15°
85
BASS TILT
90
TREBLE TILT
80
30°
45°
75
85
80
70
65 100
60 95
90
75
BASS ROLL-OFF
70
65
60
20k
20
100
1k
10k
20k
1k
10k
100
20
Figure 4. The upper curve group shows the horizontal directivity
Figure 5. The curves show the effect of the bass tilt, treble tilt and
bass roll-off controls on the free field response.
characteristics of the 1031A in vertical configuration measured at 1 m.
The lower curve is a 1/3 octave band power response, measured in an
IEC approved reverberation chamber.
SYSTEM SPECIFICATIONS
CROSSOVER SECTION
AMPLIFIER SECTION
Input connector XLR female:
pin 1 gnd
pin 2 +
pin 3 -
Bass amplifier short term output power with a
8 Ohm load: 120 W
Lower cut-off frequency, -3 dB:
Upper cut-off frequency, -3 dB:
< 47 Hz
> 22 kHz
Treble amplifier short term output power with an
8 Ohm load: 120 W
Free field frequency response of system:
48 Hz - 22 kHz (± 2 dB)
Input impedance:
10 kOhm balanced
Input level for 100 dB SPL output @ 1m:
variable from +6 to -6 dBu
Maximum short term sine wave acoustic output on
axis in half space, averaged from 100 Hz to 3 kHz:
Long term output power is limited by driver unit
protection circuitry.
@ 1m 110 dB SPL
@ 0.5m > 116 dB SPL
Input level for maximum short term sine wave output
of 110 dB SPL @ 1m:
Amplifier system distortion at nominal output:
THD
< 0.05%
< 0.05%
< 0.05%
< 0.05%
variable from +16 to +4 dBu
SMPTE-IM
CCIF-IM
DIM 100
Maximum long term RMS acoustic output in same
conditions with IEC weighted noise (limited by
driver unit protection circuit):
Subsonic filter below 45 Hz :
Ultrasonic filter above 25 kHz:
18 dB/octave
12 dB/octave
@ 1m > 101 dB SPL
@ 0.5m > 107 dB SPL
Signal to Noise ratio, referred to full output:
Crossover frequency, Bass/Treble:
Crossover acoustical slopes:
2.2 kHz
24 dB/octave
Bass
Treble
> 100 dB
> 100 dB
Maximum peak acoustic output per pair above
console top, @ 1 m from the engineer with music
Treble tilt control operating range in 2 dB steps:
from +2 to -4 dB & MUTE
Mains voltage:
230, 100/200 or 115/230V
according to region
material:
> 120 dB
Self generated noise level in free field @ 1m
on axis: < 10 dB (A-weighted)
Bass roll-off control operating range in 2 dB steps:
from 0 to -8 dB @ 40 Hz
Voltage operating range:
±10%
Power consumption: Idle
30 VA
160 VA
Harmonic distortion at 90 dB SPL @ 1m on axis:
Bass tilt control operating range in 2 dB steps:
from 0 to -6 dB @ 80 Hz
& MUTE
Full output
Freq:
50...100 Hz
> 100 Hz
< 3%
< 0.5%
Drivers:
Bass 210 mm (8") cone
Treble 19 mm (3/4") metal dome
Both drivers are magnetically shielded.
The 'CAL' position is with all tone controls set to 'off'
and the input sensitivity control to maximum (fully
clockwise).
Weight:
12,7 kg (28 lb)
Dimensions:
Height 393 mm (15 1/2")
Width
250 mm ( 9 7/8")
Depth 290 mm (11 7/16")
Genelec Document D1031AR001 Copyright Genelec Oy 6.2003. All data subject to change without prior notice
International enquiries:
In the U.S. please contact:
Genelec, Inc., 7 Tech Circle
Natick, MA 01760, USA
Phone +1 508 652 0900
Fax +1 508 652 0909
In China please contact:
Genelec, Olvitie 5
Genelec China Representative Office
Soho New Town, 88 Jianguo Road
D-1504, Chaoyang District
Beijing 100022, China
FIN-74100, Iisalmi, Finland
Phone +358 17 83881
Fax +358 17 812 267
Email [email protected]
Phone +86 10 8580 2180
Email [email protected]
Fax +86 10 8580 2181
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