Glensound GS-HA008 Twin Headphone Amplifier
Model: GS-HA008
About: Glensound GS-HA008 Twin Headphone Amplifier
Glensound GS-HA008 is a robust twin stereo headphone amplifier designed for professional broadcast and orchestral monitoring environments. With two independent headphone amplifiers, flexible input routing, loop-through audio and power, and compact portable construction, the GS-HA008 is ideal for use in dense multi-user setups.
Features
- Two independent stereo headphone amplifiers
- Common balanced audio inputs with individual level adjustment per amplifier
- Switchable routing: each input channel can be sent to left ear, right ear, or both
- Coarse gain controls for input level on rear panel
- Unbalanced stereo input mode supported on single XLR
- XLR loop-through for daisy-chaining multiple amplifiers
- 6.35mm headphone output connectors (A and B gauge compatible)
- Built-in phase reverse switch for signal correction
- Auto power-down when no headphones are connected
- Battery powered with 2 x PP3 (9V) batteries
- External 18V DC input with power loop-through for multi-unit setups
- Lightweight aluminium chassis for portable use
Specifications
| Balanced Input Impedance | > 50 kΩ |
|---|---|
| Unbalanced Stereo Input Impedance | > 22 kΩ (each channel) |
| Input Gain Range | -20 dBu to +9 dBu |
| Frequency Response | -1 dBu @ 40 Hz & 20 kHz |
| Noise (RMS 22–22 kHz) | -86 dBu (min gain), -80 dBu (line up), -62 dBu (max gain) |
| Distortion (into 600 Ω) | < 0.5% @ 100 Hz, < 0.03% @ 1 kHz, < 0.06% @ 10 kHz |
| Headphone Impedance Range | 200 Ω to 2 kΩ |
| Maximum Headphone Levels | +16 dBu into 2 kΩ, +16 dBu into 600 Ω, +15 dBu into 200 Ω |
| Headphone Volume Pot Range | Up to +10 dBu |
| Headphone Connectors | 2 x 6.35 mm (A & B gauge) |
| Power - Internal | 2 x 9V PP3 batteries |
| Power - External | 18V DC @ < 29 mA, 2.5 mm jack (center positive) |
| Battery Life Indicator | Steady red LED = good battery, Flashing = low battery |
| Dimensions (H x W x D) | 40 x 172 x 121 mm |
| Weight | 560 g |
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