Glensound GS-FW008 Four Wire Talkback & Talkback Into Headphone Circuit
Model: GS-FW008
About: Glensound GS-FW008 Four Wire Talkback & Talkback Into Headphone Circuit
Glensound GS-FW008 is a versatile and economical belt-pack 4-wire talkback interface, ideal for outside broadcast environments. It features comprehensive audio routing, multiple monitoring inputs, and selectable microphone modes, making it suitable for both IFB and talkback applications in mobile broadcast setups.
Features
- Single-channel belt-pack 4-wire talkback and headphone monitoring interface
- Mic input switchable between Line / Mic / Mic with +12V phantom power
- Mic input routed via toggle switch (momentary or latching) to:
- Transformer-balanced XLR output (0 dBu)
- Right channel of the stereo headphone mix
- Additional 4W and Stereo inputs mixed to headphone output
- 4W input can also be routed to the 4W output via IFB switch
- Stereo input always feeds the stereo output
- Built-in headphone amplifier with high output capability
- Two parallel 6.35mm headphone connectors (A and B gauge)
- Powered by internal 9V PP3 battery or external 12–20V DC supply
- LED power indicator: solid = good battery, flashing = low battery
- Compact and lightweight design for mobile use
Specifications
| Mic Input Gain | -43 to -65 dBu |
|---|---|
| Mic + Phantom Power Gain | -35 to -57 dBu |
| Line Input Gain | -22 to 0 dBu |
| Mic to 4W Noise | -74 dBu (min gain), -53 dBu (max gain), RMS 22–22 kHz |
| 4W In to Out Noise | > -85 dBu (RMS 22–22 kHz) |
| Stereo In to Out Noise | > -85 dBu (RMS 22–22 kHz) |
| Frequency Response | 40 Hz – 16 kHz ±0.5 to -1 dBu |
| Headphone Output Level | +19 dBu into 2kΩ +18 dBu into 600Ω +16 dBu into 200Ω |
| Headphone Impedance | 200Ω to 2kΩ |
| Power | Internal: 1 x PP3 9V battery; External: 12–20V DC @ 60mA (2.5mm jack) |
| Battery Life | > 10 hours |
| Dimensions (H x W x D) | 43 x 153 x 103 mm |
| Weight | 490 g (excluding battery) |
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