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Presonus

Open-Box Presonus HP4 Discrete 4-Channel Headphone Amp Condition 1 - Mint

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Overview

Professional recording quality, desktop size.

The PreSonus HP4 Discrete 4-Channel Headphone Amp features 4 headphone outputs on the front panel, each with its own volume, and 150mW of amplification per channel-extremely loud output with a low -98dB noise floor. It also allows control over control room monitors with a separate volume knob that can be muted using the Monitor Mute button. 1/3 rackspace. Accepts balanced/unbalanced inputs and outputs (1/4" TRS). Input can either be set to stereo or mono (the mono selector button on the front channel simply copies both inputs to both sides). Powered by an external wall-mounted supply.

The HP4 represents a tremendous value as echoed by this email received by PreSonus:

"To my amazement, your HP4 sounded as good as both of my hi-fi stereo heaphone amps. Very very clean and loud. I can't believe you put 150 mw per channel, @52 ohms, to four headphone outputs and offer such a quality unit for very little over $100." (M. Burke via email)

Features

  • 4 discrete headphone outputs
  • Each with its own volume and 150mW of power
  • Extremely loud output with low noise (-98dB noise floor)
  • Allows control over control room monitors with a separate volume knob
  • Control room volume can be muted using the Monitor Mute button
  • 1/3 rackspace
  • Balanced/unbalanced TRS I/O
  • Powered by an external wall-mounted supply

Think small and get big-time headphone control.

Specs

HP4 Discrete 4-Channel Headphone Amp Specifications:

Connections
  • Input: TRS Impedance: 10K Ohms
  • Output: TRS Balanced: 51 Ohms Impedance
Performance:
  • THD+Noise (Unweighted): 0.002%
  • Noise Floor: -98dB
  • Signal To Noise: >95dB
  • Power Supply Rejection: >98dB
  • Power: 16 Watts
Panel Controls:
  • Headphone Level: 1 to 12
  • Monitor / Feed Output: -80dB to +10dB
  • Mono Switch: Monitor / Feed Mute
Power Supply:
  • Type: Linear
  • Input: 16 VAC/1000 mA (factory configured)
Physical:
  • Weight: 5 lb.
  • Dimensions (W x D x H): 5.5" x 5.5" x 1.75"
  • Mounting: Max Rack and Universal Rack Tray
  • Chassis: Steel
  • Panel: Brushed Aluminum
  • Sides: Cast Aluminum
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