Product Information

Simple and versatile.

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 globally mute the headphone outs and 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.

Compact and expandable.

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 rackspace. 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.

Small But Powerful Headphone Amp!

The HP4 from PreSonus answers the project studio owner's needs for headphone distribution with professional specifications and more in a small package with an affordable price. The unit comes in a 1/3-rackspace chassis similar to the TubePre. The HP4 accepts balanced/unbalanced inputs and outputs (1/4" TRS). The input can either be set to stereo or mono. The mono selector button on the front channel simply copies both inputs to both sides. Even a small project studio can benefit from having an HP4 on hand!

PreSonus HP4 4-channel Headphone Monitor at a Glance:

  • Small yet versatile
  • Four headphone outputs
  • Ultra-quiet, ultra-controllable

Four headphone outputs
The HP4 features four headphone outputs on the front panel each with its own volume potentiometer and 250mW of amplification per channel. For such an affordable unit, you get a great monitoring tool for any studio application.

Ultra-quiet, ultra-controllable
Can you say quiet? PreSonus can with the HP4's -98 dB noise floor and wide frequency response. Also, the HP4 allows control over control room monitors with a separate volume potentiometer that can be muted using the MONITOR MUTE button. The HP4 is powered by an external wall mounted power supply.

PreSonus HP4 4-channel Headphone Monitor Features at a Glance:

  • 4 discrete headphone outputs
  • Dedicated volume pots for each channel
  • Balanced/unbalanced ¼" TRS I/O
  • Super-quiet with -98dB noise floor
  • Wide frequency response
  • Can also serve as control room monitor control with MONITOR MUTE button

PreSonus HP4 - Great-sounding headphone amp for studios from project to pro!

Technical Specifications

Inputs

 
Connector Type ¼” TRS, balanced
THD+N 0.0025%, 1 kHz, unity gain 
Max Input Level +18 dBu, <0.5% THD+N, unity gain 
Input Impedance 10 kΩ
Frequency Response 20 Hz - 20 kHz, ±0.5dB

Monitor Outputs

 
Connector Type  ¼” TRS, asymmetrical, impedance-balanced
THD+N 0.0025%, 1 kHz, unity gain 
Max Output Level +18 dBu, <0.5% THD+N
Output Impedance 51Ω
Frequency Response 20 Hz - 20 kHz, ±0.5dB 

Headphone Outputs

 
Connector Type  ¼” TRS, stereo
Max Output Power 130 mW/Ch., <0.5% THD+N, 60Ω load
Frequency Response 20 Hz - 20 kHz, ±0.5 dB, 60Ω load
Headphone Impedance Working Range 32Ω - 600Ω

Power

 
External Adapter Type +12 VDC, 1000 mA, center pin positive

Physical

 
Dimensions 1/3U rack-mount (with standard rack tray, not included)
Height 1.75” (44.45 mm)
Depth 5.5" (139.7 mm)
Width 5.5” (139.7 mm)
Weight 5 lbs (2.27 kg)
Current Stock:
Weight: 2.27 KGS
Width: 13.97
Height: 4.45
Depth: 13.97
SKU: HP4

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