Fostex PH 50 Headphone amplifier

Featuring five separate 500mW amplifiers - each with its own individual level control - the PH-50 allows you to drive up to five sets of headphones. In addition, the AUX in can be used as a connection for a cue system. Multiple PH-50s can even be linked to provide headphone monitoring for large ensembles, multimedia presentations, educational events, and many other applications. With their compact, half-rack design, two PH-50s can be mounted on a single rack shelf.