20 0.77V | 1.4V | 26dB
The input level at which the power amplifier delivers its rated output power can be
switched between 0,775 V
RMS
and 1,4 V
RMS
. Often multiple amplifiers are used
simultaneously. In this case, switch to the "26 dB" position, the signal will then be
amplified by all amps equally. Thus, you can combine different power amps of the
S-series, and always get the same output level.
21 CH-1 (MONO)
Connect the line-level signals to be amplified to the XLR input of Channel 1 using a
XLR cable.
22 CH-1 (MONO)
Connect the line-level signals to be amplified to the 1/4" balanced TRS phone jack
input of Channel 1 using a 1/4" phone jack cable.
23 Switch for power supply voltage
Before connecting the amplifier 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 AC 230 V). If in doubt, consult
an electrician.
Connections and controls
power amplifier
20
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