GS-FW024 MKII

4 Channel 4 Wire Subrack

A 1RU 19” rack unit containing 4 separate 4 wire/IFB circuits. The GS-FW024 MKII is the next generation on from the very popular original GS-FW024 and is one of the top of the range of extensive 4-wire talkback units. Glensound has been designing and making 4-wire talkback units for more than 35 years and the GS-FW024 MKII builds on past experience to provide a highly reliable and comprehensively specified unit which is also hugely versatile and is ideal for the communication hub of small OB vans and small studios.

Features

4 outgoing and incoming talkback circuits
1 incoming 'Programme' circuit
Presence LEDS indicate when an incoming talkback circuit receives audio
Internal front panel microphone and XLR for external microphone
Individual gain controls for both microphones
Glensound ‘Referee’ compressor/ limiter circuit on mic amps
Illuminated talkback keys can easily be programmed to alter operation mode (latching, momentary, latching & momentary (intelligent lever key))
All 4-wire circuits have input & output gain controls
4 wire inputs can be looped to 4-wire outputs (IFB)
PGM input can be routed to 4-wire outputs
PGM inputs & IFBs can be mixed or cut when talkback keys are operated
Front panel switches for routing PGM & IFB & selecting mix/cut operation
Talkback groups can simply be defined
Mains powered 100-250 VAC
Front panel speaker and headphone jack (cuts front panel LS)
Balanced external LS output (0dB)
Front panel LS/Headphone volume control
Transformer balance outputs
Highly reliable electronic 'transformer' inputs
Power ON LED
All audio inputs & outputs on XLRs
Lazy mic output (permanent un-switched)
Loop inputs for remote operation of talkback keys
Loop outputs for red light switching/ external LS dim etc from talkback keys
Large labelling points for designation of audio circuits

Specification

EXTERNAL MIC INPUT

Lineup Gain: 54dB (For 0dBu output)
Gain trim control: + / - 10dB
Input type: Electronically balance

MIC COMPRESSOR/ LIMITER

Type: Complex multi-point curve

Input Level	Output Level
-54	0.3
-44	+5.3
-34	+8.7
-24	+11.39
-18	Clip

MIC FREQUENCY RESPONSE

-1dBu @ 30 Hz
-2dBU @ 20 KHz

MIC DISTORTION

All measured @ +8 dB on output
100 Hz <= 0.06%
1 kHz <= 0.02%
10 kHz <= 0.03%

MIC NOISE

Mic noise minimum gain -75dB
Mic noise maximum gain -54dB

4-WIRE & PGM INPUTS

Nominal line up: 0dBU
Input Impedance: >22K
Type: Transformer balanced
Input Gain Control: +10 to - Infinity
Maximum input before clipping: +26dB
Present Led Illumination Point: -23dB
Frequency Response (measured to 4-wire output (IFB))
-1dBu @ 30 Hz
-2dBu @ 20 KHz

4-WIRE OUTPUTS

O/P gain range -20dBu to +10dBU
Output Impedance: Type: Fully protected electronically balanced
Frequency Response (measured from 4-wire input (IFB))
-1dBu @ 30 Hz
-2dBu @ 20 KHz

HEADPHONE & LS

Headphone Impedance: 16 to 1000 Ohms
Headphone/LS Gain range: +10dB to -20dB (-Infinity by internal link)
Maximum Headphone output: +20dB into 600 Ohm headphones
Frequency Response (Measured at headphones):
-1.4dBu @ 30 Hz
-0.8dBu @ 16 KHz

GS-FW024 MKII

4 Channel 4 Wire Subrack

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SPEAK WITH our sales team

GS-FW024 MKII

4 Channel 4 Wire Subrack

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SPEAK WITH our sales team