Operating Mode Selection - QSC SRA 1222 User Manual

SETUP-

Operating Mode Selection

Mode Switches
The mode switches are located on the rear panel.
The switches are recessed to prevent accidental
changes. It is best to set the switches as re-
quired before mounting the amplifier in an
equipment rack as they may become difficult to
access.
Change switch positions by sliding the switch
left or right. Operate the switches with a small,
flat-tip screwdriver or similar tool. Do not use a
pencil or other item that could break and fall into
the amplifier.
The possible operating modes are Stereo (Biamp
application uses Stereo mode, too), Parallel, and
Bridge. Each is described in detail on pages 14
through 17. Additionally, clip limiting and low
frequency filtering are switchable on each
channel. Page 18 and 19 describes the clip limiter
and LF filter operation.
Stereo Mode
In stereo mode, each input signal is
sent to its respective channel. Each
channel has independent gain
control, clip limiting, filtering, input,
and output connection.
To operate in stereo mode, set the
mode switches for stereo. Set
switches 4, 5, 6 and 7 to the left.
Connect the two input signals and the
two speakers.
Continued, top of next page.....
14
Note:
The block diagrams in this section do not show all the required
connections. They are simplified to convey the main operating
principles of each operating mode. For detailed connection
information, refer to pages 20 through 29.
Mode Switches are located on the rear panel.
SRA amplifier
CH1 Input
XLR or RCA
Mode switches
set for stereo
CH2 Input
XLR or RCA
CH1
Output
Full range
loudspeakers
CH2
Output