33GB4 User Guide

Talkback

The talkback mic input is on the rear connector panel.
The level of the talkback mic signal is controlled by the LEVEL pot (35). The signal is the fed to
all groups, aux 1-2, aux 3-4, aux 5-6 and aux 7-8 using the appropriate buttons (36).

Stereo Returns

There are two stereo return channels. The connectors are 1/4” jacks on the rear connector
panel.
Each has its own level control (37), and each may be routed to the L-R main mix or to groups 1-
2 for Stereo Return 1 or to groups 3-4 for Stereo Return 2 via the appropriate switches (38).

PSU Monitor LEDs

These LEDS (39) confirm the presence of the correct voltage on the +48V and the +/-17V power
rails in the console.
Rear Connector Panel
T/B MIC (3-pin female XLR)
Pin 1 Ground
Pin 2 Signal Hot
Pin 3 Signal Cold
MIX L, R & C OUTPUTS (3-pin male XLRs)
Pin 1 Chassis
Pin 2 Signal Hot
Pin 3 Signal Cold
MIXR GRP4 GRP2
GRP1GRP3MIX LMIXC
T/BMIC
INS INS INS
INSINSINSINS
MTX4
R MNTR
AUX4
MTX3
L
L
R
L
R
REC/ALT
OUT
2TRK IN
L
R
AUX3MTX2 AUX2MTX1 AUX1
RR AUX8L L AUX7 AUX6 AUX5STERTN2 STERTN1