Refurbished - HP4 *

Product Details

  • 4 screaming-loud (130 mW per channel) stereo headphone amps
  • Mono summing
  • Monitor level control and mute
  • Daisy-chain multiple units via monitor outputs
  • Compact 1/3U rack-mount chassis

Tired of straining to hear the headphones? The HP4’s four 130 mW headphone outputs are clear, clean, and screaming loud, all packed in a compact, 1/3U chassis. Features include balanced L/R line inputs and outputs, global mute, overall level control, and sum to mono. The line outputs can feed another HP4 or an HP60. 

12V DC Power Supply

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)

As a commitment to constant improvement, PreSonus Audio Electronics, Inc., reserves the right to change any specification stated herein, at any time, without notification.

Accessories

12V DC Power Supply