User manual

20 0.77V | 1.4V | 26dB
The input sensitivity at which the amplier is delivering its full rated power, can be
set with this switch between 0.775 V
RMS
and 1.4 V
RMS
). Often multiple ampliers are
used simultaneously. In this case, switch to the ‘26 dB’ position, the signal will then
be amplied by all amps equally. Thus, you can combine dierent power amps of
the S-series, and always get the same output level.
21 CH-1 (MONO)
Connect the line-level signals to be amplied to the XLR input of Channel 1 using a
XLR cable.
22 CH-1 (MONO)
Connect the line-level signals to be amplied to the 1/4" balanced TRS phone jack
input of Channel 1 using a 1/4" phone jack cable.
23 Power supply switch
Before connecting the amplier to the mains power supply, ensure that the mains
voltage switch on the bottom side (or rear side for S-150) is in the position that cor‐
responds to the actual power available (in Germany 230 V~). f in doubt, consult an
electrician.
Connections and operating elements
S-75 MK II, S-100 MK II, S-150 MK II
21