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Flexible Headphone Amplification!
Whether you need to expand your home studio headphone monitoring capability or add robust cue mix distribution, the affordable HM Series offers the sound quality, reliability, and flexibility you need to expand your setup.

The ultra-compact HM-4 offers a simple yet effective way to split a single stereo signal out into four pairs of headphones. Perfect for quickly splitting a phones mix in the studio or even crowding around a tablet to watch a movie at home.

The two 19" rackmount models, the HM-400 and HM-800, deliver flexible, robust headphone distribution for studios, practice spaces and more.


  • Share a single stereo source with up to 4 pairs of headphones
  • Individual level control for each output
  • Powered via the included power supply
  • Built-Like-A-Tank construction


  • Max Level(1/4" input): +22dB
  • Input Type: Female 1/4" phono, unbalanced, stereo
  • Input Impedance: 10k each channel, unbalanced
  • Output Type: 4x Female 1/4" phono, unbalanced, stereo
  • Output Impedance: 47 each channel, unbalanced
  • Level Control: 4x Rotating Phones Knobs
  • Power Requirements: +12V DC
  • Current Draw: <220 mA, max
  • Display LEDs: Top power on/off
  • Dimensions (HxWxD): 2.0" x 4.3" x 2.3"
  • Weight: 0.5lb

Item Includes:

  • HM-4
  • Power supply