PreSonus HP4: 4-Channel Headphone Amplifier

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.

Input/Output

• 4 screaming-loud (130 mW per channel) stereo ¼” headphone outputs (front panel)
• 2 balanced ¼” line outputs (monitor outputs)
• 2 balanced ¼” 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