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GX3 S85 Front BAN

GS-GX3/HEAD Mk I
GS-GX3 Operators Headphone And Talkback Module

Features Description GS-GX3 Specifications Downloads Ask a Question
  • Headphone Amp with 5 sources
  • Talkback
  • Line Identification
  • Operator left/both/right headphone switching

FRONT OF MODULE

Operators Mic Input
Internal (Front panel) or external mic (Rear balanced XLR).

Line Identification
This module has a 16 second IDENT recorder built into it recorded from the operators mic. Up to 16 seconds of voice can be recorded (any of the 16 seconds that is not used is automatically filled up with a 1kHz audio tone). Once recorded this message can then be continuously sent to the mono output.

Speak to external output
Local balanced external output which the operators mic gets routed to when the button is pressed.


HEADPHONE

Level Control
All sources have headphone volume level controls using a rotary pot.

5 Sources

1. Cue
Cue comes from two places, with an ISDN module fitted, cue relates to the return audio from the first ISDN codec. The audio from the ISDN codec is routed via the AMO where an insert point is available for over-plugging different audio into this cue circuit. Without the ISDN module, a feed can be inserted directly into the AMO module.

2. M Out
Mono output which is derived from the main stereo mix.

3. Local Input 
A pair of inputs on the AMO module that is routed to the headphone via this local pot. This input is also fed to all modules. However, there is also an local input on the rear of the module itself which allows audio to be inserted solely to the headphone amp which over-pluggs the audio from the AMO module.

4. Aux Out 
The feed from the aux mix.

5. Pre-Fade
Listen to any selected pre fade.

GS-GX3/HEAD MkI Option

Left/Both/Right Routing
All sources can be routed individually to the left ear, right ear or both ears of the stereo headphone amplifier.

REAR OF MODULE

Headphone Output
Switchcraft A/B Gauge 1/4 inch jack socket.

Phase Reverse B Option
By internal link.

Phantom Power
48 volt phantom power can be turned on/off using the toggle switch on the rear of the module. Available only for the rear XLR input.

Speak to external output
Local balanced external output which the operators mic is routed to when the button it pressed.

OPs Mic Input (External) 
Balanced XLR mic input.

GENERAL SPECIFICATIONS
HEIGHT 150mm 
WIDTH 150mm x 30mm per channel
DEPTH (Excluding Connectors) 380mm

MAINS CONSUMPTION
FOR A TYPICAL 10 MONO CHANNEL, 2 STEREO CHANNEL, 240V, CURRENT = 148mA, WATTS = 20W
WITH COMPRESSORS, STEREO PPM, MON PPM, AND HEADPHONE MODULE 110V, CURRENT = 245mA, WATTS = 20W
12V, CURRENT = 1.4A
48V, PHANTOM POWER 5.68mA

MONO MIC CHANNEL
GAIN -70dB TO +10dB
FREQUENCY RESPONSE 25Hz TO 20KHz (-1dB)
DISTORTION @ +8dB >0.15% (100Hz, 1KHz, 10KHz)
NOISE @ LINE UP >-53dB @ MAX GAIN (22Hz-22KHz)
NOISE ON CHANNEL @ MAX GAIN >-55dB (22Hz - 22KHz)

STEREO LINE CHANNEL
GAIN -10dB TO +10dB
FREQUENCY RESPONSE 25Hz TO 20KHz (-2Db)
DISTORTION @ +8dB >0.02% (100Hz, 1KHz, 10KHz)
NOISE @ LINE UP >-75dB (22Hz - 22KHz)

CHANNEL EQ +-12dB CUT/BOOST @ 1K6 - 3K2 WITH AN AVERAGE Q

CHANNEL MEASUREMENTS

MAX INPUT GAIN BEFORE CLIPPING
MIC INPUT -24dB
LINE INPUT +16dB
MAX OUTPUT +25dB

A/B OUTPUT
CROSS TALK 
1KHZ TONE FADER @ 0dB >-61dB (22HZ - 22KHZ) 
NOISE ON CHANNEL AT LINE UP >-67dB (22HZ - 22KHZ) 
DISTORTION @ +8dB >0.02% (100Hz, 1KHz, 10KHz)

LSA LSB
GAIN 30dB
DISTORTION @ +8dB >0.02% (100Hz, 1KHz, 10KHz)
NOISE @ LINE UP >-63dB (22Hz - 22KHz)

MONO OUTPUT
NOISE ON CHANNEL AT LINE UP >60dB (22HZ - 22KHZ) 
DISTORTION @ +8dB >0.02% (100Hz, 1KHz, 10KHz)

AUX OUTPUT
NOISE ON CHANNEL AT LINE UP >-61dB (22HZ - 22KHZ) 
DISTORTION @ +8dB >0.02% (100Hz, 1KHz, 10KHz)

OPS HEADPHONES
FREQUENCY RESPONSE 25Hz TO 20KHz (-1dB)
DISTORTION @ +8dB >0.09% (100Hz, 1KHz, 10KHz)
NOISE ON CHANNEL AT LINE UP >-55dB (22HZ - 22KHZ)

COMMS HEADPHONES
FREQUENCY RESPONSE 25Hz TO 20KHz (-1dB)
DISTORTION @ +8dB >0.06% (100Hz, 1KHz, 10KHz)
NOISE ON CHANNEL AT LINE UP >-56dB (22HZ - 22KHZ) 
ALL HEADPHONES OUTPUTS ARE WIRED LEFT EAR PHASE 
RIGHT EAR PHASE REV

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