PreSonus HP4
Compact 4-Channel Headphone Amplifier


Had enough of straining to hear audio from underpowered headphone mixes? Here's your solution. The PreSonus HP4 answers the project studio owner’s need for quality, professional-grade headphone distribution with superb specifications, and all in a compact, affordable, simple-to-use package. It accepts unbalanced ¼" inputs, and delivers ¼" TRS out. Its input can be stereo or mono (a mono input sends copies to both outs), it features 4 front panel headphone outs with volume control, -98 dB noise floor, monitor MUTE, and is powered by an external wall-mounted power supply.

PreSonus HP4 Features:

  • Four High Power Headphone Outputs
  • Ultra loud (150mW per channel)
  • Ultra quiet operation
  • Musical Wide Dynamic Range
  • Control Room Monitor Outputs with Level Control
  • Mono or Stereo Operation
  • Monitor Mute Switch
  • Daisy Chain an Infinite Number of Units (additional units sold separately
  • Compact 1/3U rack-mountable package

PreSonus HP4 Specifications:

  • Number of Channels: 1 in, 5 out
  • Dynamic Range: >115 dB
  • Signal to Noise Ratio: >95 dB
  • Headroom: +22 dBu
  • Frequency Response: 10 Hz to 50 kHz
  • Input Impedance: 10 kOhms
  • Master Output Impedance: 51 Ohms
  • THD + Noise: <0.002%
  • Internal Operating Level: +0 dBu = 0 dB
  • Headphone Output Power: 150 mW
  • Input Connectors: ¼" TRS
  • Master Output Connectors: ¼" TRS
  • Power Supply: External, Linear Supply
  • Power Requirements: 16 VAC, 1000mA, 20 Watts
  • Dimensions: 5.5" x 5.5" x 1.75"
  • Weight: 4 lbs.
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