A SYSTEMS GA335 User Manual - page 5
5
GA335 / GA460
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REAR PANEL
7. Input Amp Configuration Switches
These DIP switches have a number of different functions.
CH1 MicOn/LineOff
When set to Off, it allows line-
level signal input through channel
1 When set to On, it allows
microphone-level signals through
channel 1
CH1 Normal
This switch sets channel 1 to
normal, with no priorities
CH1 Priority
Enables muting of channels when
priority circuit on input 1 is closed
Connect the priority connection on
Input 1 to microphone’s push-to-talk
function when this is activated
CH1 VOX
Activating this switch allows
automatic muting when channel 1
input passes the preset threshold
(point 8).
CH1 to Zone 2
Activating this switch sends the
channel 1 input signal to the zone 2
output channel
CH2 to Zone 2
Activating this switch sends the
channel 2 input signal to the zone
2 output
Phantom Power
This switch activates phantom
power to the Input 1 input Phantom
power is required for use with
condenser microphones
8. Input 1 Terminal
This is a 5-pin Phoenix-type connection with 3 pins for
balanced input signals and 2 connectors for priority
push-to-talk button connection The input accepts direct
connection of line or microphone inputs as selected by the
mic/line DIP switch (point 7).
9. Input 1 VOX Threshold Control
This control adjusts the level at which the Input 1 signal
should be before other signals are muted This only works
when the CH1 VOX DIP switch is turned on
10. RCA Inputs
These inputs accept stereo unbalanced line-level RCA
input signals The input signals received through these
connectors are summed
11. Zone 2 / MOH Output and Control
This 4-pin Phoenix-type connector provides two different
output possibilities The 8 ohm side is for 1W output to
external speakers, while the 600 ohm connectors are for
connecting private branch exchange (PBX) telephone
systems for on-hold music For further info on wiring, see
the Output Wiring section
12. Preamp Output Terminal
This balanced 3-pin Phoenix type connection sends the
GA335 and GA460 mixer/amplifier’s signal to external
devices The output signal level is dependent on the
master level control For further info on wiring, see the
Output Wiring section
13. Amplifier Output
Speakers can be connected to this output terminal
Connections available include COM (common), 70V,
100V and 8 ohms These input connections can accept
terminal forks up to 10 AWG For further info on wiring,
see the Output Wiring section
14. Power Socket
This is for a standard IEC power cable Please connect
the cable to a suitable AC power outlet While the GA
series offers a universal power supply, be sure to check
local voltage levels before connecting the unit to ensure
they correspond
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