Professional, multi-purpose headphones amplifier system for stage and studio applications.Highest sonic quality with virtually all types of headphones >8 Ohms even at maximum volume.4 independent high-power amplifier sections provide up to four stereo mixes with individual balance controls.Each input/aux section can be separately adjusted for 'more me' mixing.Stereo Aux input for each channel allows you to mix in any instrument or sound source.Multi-functional Stereo/2-Channel switch on each channel allows for either stereo playback or double mono operation.