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PreSonus HP4 4-Channel Headphone Distribution System

Headphone Distribution System
Part No: HP4

Are you and your session players and bandmates tired of straining to hear underpowered headphones? Then the PreSonus 150 mW headphone amps for the HP4 headphone-distribution system could be what you need!

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£119.00 £99.17 ex VAT
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£119.00 £99.17 ex VAT
 
PreSonus

Product Description

Details

These headphone amps are not just loud enough for session and stage use, they’re loud enough to explode the oysters in a Po’ Boy sandwich. Yet the sound is clear and clean, with a wide dynamic range. At last, everybody will be able to hear—assuming they are capable of hearing. Be careful with that level control!

The loudness of your headphones will vary depending on their design and their input impedance. The output impedance of the HP4 is 51Ω (ohms), and it will work fine with professional and consumer headphones but the volume will differ depending on which type of headphone you use.

Headphones with lower input impedances will generally be louder than higher-impedance headphones. (In this case, louder does not mean better!) Most professional headphones have impedances between 150Ω and 600Ω. Consumer headphones for CD players and the like often have impedances between 8Ω and 32Ω.

Broadcast headphones are specialized, and you are unlikely to use them with an HP4; their impedances are typically between 1.5 kΩ (kilohms) and 2 kΩ.

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 adjust the overall headphone level, sum the stereo signals to mono, and mute the rear-panel Monitor outputs.

The Monitor Mute button mutes the main rear-panel outputs. This is handy when recording in front of a computer and studio monitors, especially when you don’t have a hardware mixer, because you can mute the signal going to the monitors rather than turn down the monitor level.

The headphone outputs remain active when the Monitor Mute button is engaged.

If your needs grow, you can use the line outputs to feed the inputs of a second HP4 or an HP60. Chain as many headphone systems as you need.

So listen up! Quit struggling with mediocre headphone amps. Get the HP4 and hear everything loud and clear. You owe it to your music.

Features

Input/Output
  • 4 screaming-loud (150 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

Specifications

Additional Information

Specification

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)

User Manual

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