Presonus HP4 4-Channel Headphone Amplifier

Presonus HP4 4-Channel Headphone Amplifier

The PreSonus HP4 Headphone Amplifier is a compact and powerful 4-channel headphone distribution system designed for studio recording, live sound, and monitoring applications. Delivering high output levels with exceptional clarity, the HP4 ensures every performer and engineer can hear their mix clearly without distortion or compromise.

Built for simplicity and performance, the HP4 features stereo left and right line inputs, along with balanced line outputs and independent level control. Each of the four headphone outputs has its own volume control, allowing multiple users to customise their listening levels with ease. A mono sum option is also included, along with the ability to mute rear-panel monitor outputs while keeping headphone outputs active, providing flexible monitoring control.

Its compact design makes the HP4 ideal for desktop use or installation in a standard rack tray (sold separately), occupying just one-third of a rack space. For expanding setups, the line outputs allow you to chain multiple units together or integrate with larger systems such as the PreSonus HP60.

Whether you're tracking in the studio or managing stage monitoring, the PreSonus HP4 delivers reliable performance, clean audio, and the flexibility needed for professional headphone distribution.

Voltage Requirements
100-240 VAC, 50-60 Hz

Inputs

• Connection Type: 1/4" TRS, Balanced
• Frequency Response: 20 Hz to 20 kHz, ±0.5 dB
• Impedance: 10 kΩ
• Maximum Input Level: +18 dBu, <0.5% THD+N, unity gain
• Total Harmonic Distortion: 0.0025%, 1 kHz, unity gain

Measurements

• Depth: 5.5" (139.7 mm)
• Height: 1.75" (44.45 mm)
• Width: 5.5" (139.7 mm)

Miscellaneous
Power Cable: +12 VDC, 1000 mA, Center Pin Positive

Output

• Headphone Outputs Frequency Response: 20 Hz - 20 kHz, ±0.5 dB, 60Ω Load
• Headphone Outputs Working Range: 32Ω to 600Ω
• Headphone Outputs Maximum Output: 130 mW/Ch., <0.5% THD+N, 60Ω load
• Monitor Output Connection Type: 1/4" TRS, Balanced
• Monitor Output Frequency Response: 20 Hz to 20 kHz, ±0.5 dB
• Monitor Output Impedance: 51Ω
• Monitor Output Maximum Output Level: +18 dBu, <0.5% THD+N
• Monitor Output Total Harmonic Distortion: 0.0025%, 1 kHz, unity gain