This active headphone amplifier is very easily integrable under the return of studio furniture, freeing cutouts on the board.
 
It has two balanced left and right inputs, as well as a talkback input with automatic program attenuation.

The connection is made via an international standard RJ45 cable, which carries both audio and power.
 
The extension to other PRF75A modules is via a single RJ45 cable between the output of the PRF75A upstream to the input of the next downstream. The three audio modulations are distributed as well as the power supply.

The headphone output is on the front panel, as well as on the rear panel for a possible offset.
 
A fugitive MUTE switch very accessible under the module, allows the attenuation of the audio modulation without retouching the volume and without removing the headphones.