PreSonus HP4

Simplicity is the HP4's hallmark. It offers left and right line inputs, left and right line outputs with level control, and four headphone outs. You can sum the stereo signals to mono, adjust the individual headphone levels, and mute the rear-panel Monitor outputs while leaving the headphone outputs active. So while the HP4 is simple to set up and use, it has all the features you need to create a versatile headphone system.

The compact HP4 can sit on a tabletop or can be screw-mounted to a standard rack tray (not included), where it requires just one-third of a rackspace. If your needs grow, you can use the line outputs to feed the inputs of a second HP4 or the larger HP60 headphone amplifier.

So quit struggling with mediocre headphone amps. Get the PreSonus HP4 and hear everything loud and clear. You owe it to your music.

Features
4 screaming-loud (130 mW per channel) stereo ¼-inch headphone outputs (front panel)
2 balanced ¼-inch line outputs (monitor outputs)
2 balanced ¼-inch line inputs
Headphone level control for each channel
Mono summing switch for each channel
Monitor level control and mute switch
Daisy-chain multiple units via monitor outputs
Compact 1/3U rack-mount chassis
Sealed, detented, metal rotary controls
External 16 VAC power supply