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Master Section
3
Rear Panel Features
Left, Right and Mono Bus Inputs
These three female XLRs are used to bring external signals directly into the Left, Right
and Mono mix buses. Useful for linking multiple mixers together or to introduce addi-
tional signals into the main mix.
Balanced in, Nominal level is +4 dBu
Group 1, 2, 3 & 4 Bus Inputs
These four 1/4” TRS jacks are used to bring external signals directly into the Group
mix buses. Useful for linking multiple mixers together.
Balanced in, Nominal level is +4 dBu
Insert For Left, Right and Mono
This switching 1/4” TRS jack allows an external processor to be inserted into the signal
path of the Main outputs. The tip carries the SEND signal from the mixer, and the ring
carries the RETURN signal back to the mixer. The insert-send point is located directly
after the Main mix bus, the return comes back at the top of the Master fader.
Tip is Send, Ring is Return, Sleeve is Audio Ground.
Send (output) impedance is 100
unbalanced
Return (input) impedance is 5K
unbalanced
Nominal Operating Level= -2 dBu
NOTE: To avoid any degradation of the mixer's output signal, any processing gear
patched into any insert point should have a low impedance output (<100
) and must
be capable of cleanly driving a 2K load to +21 dBu.
Left, Right And Mono Main Outputs
The Left, Right and Mono outputs appear at these male XLRs. The output level is swit-
chable between line level and mic level.
Line/Mic Switches For Left, Right And Mono Main Outputs
These switches are recessed to prevent accidental changes.
Output levels are provided at line level for feeding the inputs of a signal processor,
another mixer or a power amplifier.
Nominal Level= +4 dBu, 100 Balanced
Output levels are reduced to mic level for feeding the Microphone inputs on a signal
processor or another mixer. Outputs are protected against phantom power.
Nominal Level= -25 dBu, 200
Balanced
p. 47