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Glensound GS-HA008 - Twin Headphone Amplifier

£366.00 £305.00 (ex. vat)

Glensound GS-HA008

  • Glensound GS-HA008
  • Glensound GS-HA008
  • Glensound GS-HA008
  • Glensound GS-HA008

Glensound GS-HA008 - Twin Headphone Amplifier

The Glensound GS-HA008 is a twin headphone amplifier with two independent input channels that can be routed separately to left ear, right ear, or both, across both headphone amplifiers. Each input channel has individual coarse gain controls and each headphone amplifier has seperate left/ right headphone volume controls.

For looping in large numbers, there is audio and power pass through. This makes the GS-HA008 suitable for audio monitoring in a dense environment such as an orchestra, where units can simply be looped together.

Glensound GS-HA008 Features

  • Two independent stereo headphone amps
  • Two balanced input feeds common for both amps
  • Each amp has adjustable level for left and right input channels
  • Each channel can be switched to the left ear, right ear or both
  • Balanced inputs have coarse gain controls on rear panel presets
  • Phase reverse switch
  • Unbalanced single XLR input mode
  • XLR audio loop through for daisy chaining multiple amlifiers
  • Headphone outputs on 6.35mm jack sockets
  • Battery powered 2 x PP3
  • Unit auto powers down when no headphones are inserted in the jacks
  • 18v DC power input
  • Loop through DC power
  • Lightweight robust aluminium construction


  • Balanced Input Impedance: >50K Ohms 
  • Unbalanced Stereo Input Imperdance: >22K Ohms (On each side) 
  • Input Gain Range: -20dBu to +9dBu
  • Frequency Response: -1dBu @ 40Hz & 20kHz
  • Noise: -86dBu (RMS 22-22kHz) @ Min Gain
  • Noise: -80dBu (RMS 22-22kHz) @ Line Up 
  • Noise: -62dBu (RMS 22-22kHz) @ Max Gain
  • Distortion @ Line up into 600 Ohms
    • 100 Hz <0.5%
    • 1kHz <0.03%
    • 10kHz <0.06%
  • Headphone Impedance: 200 Ohms to 2K Ohms 
  • Headphone Volume Pot Level Range: -?dBu to +10dBu
  • Maximum Headphone Levels:
    • +16dBu into 2K Ohms 
    • +16dBu into 600 Ohms 
    • +15dBu into 200 Ohms
  • Headphone Connectors: 6.35mm A & B gauge
  • Power
    • Internal: 2 x PP3 9 volt battery 
    • External DC Input: 18V @ < 29mA 
    • External DC Input & Output Connectors: 2.5 mm Jack (inner positive) 
    • Battery Indicator: Steady red LED indicates good battery Flashing red LED indicates low battery 
  • Overall Size: 40 x 172 x 121 mm (H x W x D) 
  • Unit Weight: 560 Grams
Manufacturer Glensound
Model GSHA008
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