MTR 6way HEADPHONE AMPLIFIER The MTR HPA-6 has two stereo line level inputs A and B feeding six discrete stereo headphone amplifiers, plus a stereo Auxiliary input feeding stations 1 and 2. Bass and Treble EQ is available on input B signals, each station can select signals from inputs A or B and can mono their own signal. The front panel inputs are duplicated on the rear. By minor changes to internal buss bar wiring, the Aux. input can be changed to feed any combination of the six headphone stations. Drives any headphone impedance from 8 Ohms to 2000 Ohms at very high levels. Input sensitivity -10dBm. Rack mounted to occupy 1U of space. Solid construction throughout with modular PCBs. Now includes a two colour input level LED on each of the three stereo inputs.