Professional multi-purpose headphones amplifier system for stage and studio applications.Highest sonic quality with virtually all types of headphones even at maximum volume.8 totally independent stereo high-power amplifier sections in one rack space.2 stereo Main inputs for two independent mixes, accessible from all 8 output channels.8 independent Direct inputs provide up to 8 individual stereo mixes.
Output level control and accurate 8-digit LED output meter per channel.Mono/stereo switch per channel for more flexibility.1 front and 1 rear TRS phones connector per channel.Direct input connector on each channel for easy connection of any sound source.Parallel Main outputs allow cascading of several headphones amplifiers.Toroidal transformer for noiseless operation and low magnetic interference.High-quality components and exceptionally rugged construction ensure long life.


  • Input Channels:2
  • Output Channels:4
  • Analog Inputs:2 x XLR Main Inputs, 2 x 1/4" Main Inputs, 1 x Stereo TRS Direct Input, 4 x Stereo TRS Aux Inputs
  • Analog Outputs:12 x Stereo TRS Headphone Outputs, 2 x XLR Main Outputs, 2 x TRS Main inputs
  • Digital Inputs:No Digital Inputs
  • Digital Outputs:No Digital Outputs
  • Controls per Channel:Volume, Mix Blend, Bass, Treble
  • Form Factor:Rackmount
  • Height:1.75"
  • Depth:8.5"
  • Width:19"
  • Weight:5.08 lbs.
  • Manufacturer Part Number:HA4700


  • Two stereo main inputs
  • Eight separate, high-powered headphone amps
  • Toroidal transformer
  • Output LED meters