User`s guide

User's Guide QuadMic © RME
6
6.2 Mic/Line Inputs
The QuadMic provides 4 balanced Mic and Line inputs via 1/4" TRS (stereo) and XLR jacks.
The electronic input stage is built in a servo balanced design which handles monaural and ste-
reo jacks correctly. When used unbalanced it automatically corrects the gain by 6 dB.
When using unbalanced cables with stereo TRS jacks, the 'ring' contact of the cable's jack
should be connected to pin 1 (ground). Otherwise noise may occur, caused by the uncon-
nected negative input of the balanced input.
The pinout follows international standards. XLR pin 2 + or hot, pin 3 – or cold, pin 1 ground.
TRS tip + or hot, ring – or cold.
6.3 Line Outputs
The four short circuit protected, low impedance and servo balanced line outputs are available
as (stereo) 1/4" TRS jacks. The electronic output stage is built in a servo balanced design which
handles monaural and stereo jacks correctly. When used unbalanced it automatically corrects
the gain by 6 dB.
The QuadMic can generate a maximum level of +21 dBu without distortion. The CLIP LED
lights up 3 dB before the input is overloaded. Referenced to the output level it lights up at
around +18 dBu.
The pinout follows international standards. TRS tip + or hot, ring – or cold.
7. Accessories
Part number Description
RM19 19“, 1 unit height rack ears
These 19" rack holders are mounted at the left and right side of the QuadMic. The unit can then
be installed into a standard 19” rack.
37011 Power supply for HDSP CardBus card
Robust and light weight switching power supply, 100V-240V AC, 12V 2 A DC.