LD Systems DDQ Serie Bedienungsanleitung Seite 6

REAR/ CONTROLS
3
5
2
6
1
10
9
8
7
11
6
(LDDDQ12 PICTURED)
4
12
:
ANALOG INPUT
1
Balanced XLR line input (23 dBu max.).
INPUT LINK
2
Balanced XLR line output
SUB OUT
3
Balanced XLR subwoofer line output
GAIN DB
4
Input sensitivity control with respect to the volume
of the amplifier module. If the maximum input
level (23dBu) is exceeded, this is indicated by
collective flashing of LEDs 7-10. In this case,
reduce the level of the signal source to avoid
negative effects on the sound.
LOW CUT / SUB OUT
5
Enabled switch activates both the high pass filter
for DDQ10/12 (100 Hz, 18 dB/oct. Butterworth)
and the low pass filter (100 Hz, 18 dB/oct.
Butterworth) for the SUB OUT. If the switch is not
enabled, the sub output signal is not affected by
any filter.
GROUND LIFT
6
Can eliminate ground loop hum if devices with
varying ground potentials are connected.
OPERATE LED
7
Lights up once the speaker system is switched on
and properly connected to the power mains.
SIGNAL LED
8
Lights up when an audio signal is present at the
line input (> -30dBu).
PEAK LIMIT LED
9
Lights up if the speaker is operating in the
clipping range. Brief flashing is not a cause for
concern, since the internal audio limiter compen-
sates for over-modulation. Permanent illumination
should be avoided by reducing the input level.