The PreSonus HP4 4-channel headphone amplifier has clear and clean sound with a wide dynamic range. Are you and your session players and bandmates tired of straining to hear underpowered headphones? These headphone amps are louder than you're ever likely to need for session and stage use, so be careful with that level control!

Simplicity is the HP4's hallmark. You get left and right line inputs, left and right line outputs with level control, and the 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 1/3 rack space. And 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 HP4 and hear everything loud and clear. You owe it to your music.

Input/Output:

• 4 screaming-loud (150 mW per channel) stereo 1/4" headphone outputs (front panel)
• 2 balanced 1/4" line outputs (monitor outputs)
• 2 balanced 1/4" line inputs
  
  

Meters, Controls, and Features:

• Headphone level control for each channel
• Mono summing switch for each channel
• Monitor level control
• Monitor mute switch
• Daisy-chain multiple units via monitor outputs
  
  

Physical:

• Compact 1/3U rack-mount chassis
• Sealed, detented, metal rotary controls
• External 16 VAC power supply

Manual