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PROANNOUNCE System User Handbook 1.1
5-17
5.1.8 2-Channel AUX Input Module (NRS 90228)
This 2-channel audio input module provides 8 RCA-type
connectors (4 x L / R) for connecting external audio
sources such as CD-players, tape decks, tuners, DAT
decks, etc. The module can be installed into slot 1 and
slot 2.
The input levels of the four AUX inputs can be
independently adjusted in a range between -10 dBu and
+12 dBu via internal trim-potentiometers.
Input channels can be switched separately to the monitor
bus and you can listen to the signal via headphones or
loudspeaker, either which being connected to the monitor
output. Automatic pilot tone surveillance of the entire
input stage is integrated as well.
B
IN 4
AUX
AUX
IN 3
LR
AUX
IN 2
AUX
IN 1
A
90228
DPM - AUX
figure 5.19 2-channel AUX input module
Specifications:
description
DPM-AUX 2-channel AUX input module, NRS 90228
connections
8 x RCA-type connectors
audio
inputs
4 x AUX, unbalanced, internally summed
nominal input level
-10 dBu ... +12 dBu / 250 mV ... 3 V
m
ax. input level
+12 dBu / 3 V
input impedance 10 k
W
frequency response
20 Hz ... 20 kHz, ± 0.5 dB
S/N ratio
> 100 dB (A-weighted)
distortion
< 0.01 %
A/D-conversion
18-bit linear, Sigma-Delta
power consumption
1.4 W
operational temperature range
+5
°
C ... +40
°
C
dimensions W x H x D
37.5 x 81 x 252 mm
weight
150 g