Glensound FW024 MKII Quad 4 wire 1U Subrack

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

A 1u 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 our 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.

SPECS

EXTERNAL MIC INPUT

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

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 (RMS weighted 22-22KHz 300 Ohm termination)

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

LS Dim: Front panel preset None to Off (factory set to -14dBU)
LS Amplifier: 3.5 Watts
Internal LS: Magnetically Shielded, Full Range 220Hz to 20kHz

POWER 

Mains Input: 100 - 240 VAC
Max Consumption: 8.5 Watts
Queiscent: 3.7 Watts

SIZE & WEIGHT

Height: 1RU
Width: 19 inch
Depth: 205mm (excluding connectors)
Weight: 1.97Kg