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Product Description

Presonus HP4 Headphone Amplifier  (PreSonus 4-channel headphone amp)

4-Channel Headphone Amplifier

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

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)

 

In accordance with California's Prop 65 Compliance Law, Regulation Requires us to Inform California Customers of the Following Warnings for All Products:

*Warning:* This product can expose you to chemicals including wood dust, which is known in the state of California to cause cancer or birth defects or other reproductive harm. For more information, please go to www.P65Warnings.ca.gov

*Warning:* This product can expose you to chemicals including Di-isodecyl phthalate, which is known in the state of California to cause cancer or birth defects or other reproductive harm. For more information, please go to www.P65Warnings.ca.gov

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