Crank Your Headphones to 12 with the HP4. A powerful 4-Channel Headphone Amplifier.
Now hear this!
Are you and your session players and bandmates tired of straining to hear underpowered headphones We were too, so we created the HP4 headphone-distribution system. These headphone amps are louder than you're ever likely to need for session and stage use, so be careful with that level control! Yet the sound is clear and clean, with a wide dynamic range. At last, everybody will be able to hear!
Simple and versatile.
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 globally mute the headphone outs and sum the stereo signals to mono, adjust the individual headphone levels, and mute the rear-panel Monitor outputs while leaving the headphone outputs active. So while the HP4 is simple to set up and use, it has all the features you need to create a versatile headphone system.
Compact and expandable.
The compact HP4 can sit on a tabletop or can be screw-mounted to a standard rack tray (not included), where it requires just 1/3 rackspace. And if your needs grow, you can use the line outputs to feed the inputs of a second HP4 or the larger HP60 headphone amplifier. So quit struggling with mediocre headphone amps. Get the HP4 and hear everything loud and clear. You owe it to your music.
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 channelMono summing switch for each channelMonitor level controlMonitor mute switchDaisy-chain multiple units via monitor outputs
Compact 1/3U rack-mount chassisSealed, detented, metal rotary controlsExternal 16 VAC power supply
Connector Type: ¼" TRS, balancedTHD+N: 0.0025%, 1 kHz, unity gainMax Input Level: +18 dBu, <0.5% THD+N, unity gainInput Impedance: 10 kFrequency Response: 20 Hz - 20 kHz, ±0.5dB
Connector Type: ¼" TRS, asymmetrical, impedance-balancedTHD+N: 0.0025%, 1 kHz, unity gainMax Output Level: +18 dBu, <0.5% THD+NOutput Impedance: 51Frequency Response: 20 Hz - 20 kHz, ±0.5dB
Connector Type: ¼" TRS, stereoMax Output Power: 130 mW/Ch., <0.5% THD+N, 60 loadFrequency Response: 20 Hz - 20 kHz, ±0.5 dB, 60 loadHeadphone Impedance Working Range: 32 - 600
External Adapter Type: +12 VDC, 1000 mA, center pin positive
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)
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