The HP60 headphone amplifier, designed as a 19" rack unit, can supply up to 6 musicians with individual headphone mixes thanks to its clever circuit design. The output power is 2x 150 mW per channel (at 60 Ω ), the HP60 delivers an extremely loud headphone signal with very low noise and distortion values if required .

On the input side, the HP60 can be fed via 4 balanced jack sockets from two different stereo sums - e.g. bass/drums and guitar/keyboards or between headphone playback and click track. The balance between these two stereo sources (A/B) can now be set separately for each of the 6 channels using the "Mix" control. In addition, each channel has a further adjustable stereo input ("External") to which, for example, the signal of the respective musician himself can be fed ("I can't hear myself loud enough..."). If required, this external source can be switched to mono using a button (ideal for vocals and soloists). If the balance is right, the overall volume of the relevant channel can be adjusted using the "Level" potentiometer. Finally, the "Mute" buttons can be used to mute the two stereo sources per channel, which is practical if you want to control the "external" signal in isolation. Each of the 6 channels also has a stereo output via which the respective mix - before the level control - can be looped through to other devices, e.g. other headphone amplifiers.

There is an XLR socket at the rear to which a dynamic talkback microphone can be connected, which can be activated at the front using a button and the volume can be adjusted using a potentiometer. The talkback function can also be activated by foot: The HP60 has an additional jack socket for connecting a standard foot switch.