PRESONUS HP4 HEADPHONE AMPLIFIER

Are you and your session players and bandmates tired of straining to hear underpowered headphones? We were too. That's why Jim Odom and his jambalaya-fueled team of engineers designed 150 mW headphone amps for the HP4 headphone-distribution system. 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!

As with other Max Rack products, simplicity is the hallmark of the HP4. 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, adjust the overall headphone level, and sum the stereo signals to mono.

Like other processors in our Max Rack series, the HP4 can sit on a tabletop or can be mounted in 1/3 rackspace, using the optional 3UMR rack adapter. And 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.

• 4 screaming-loud (150 mW per channel) headphone amplifiers, each with:
• Headphone level control
• Mono summing switch
• Monitor level control
• Monitor mute switch
• Daisy-chain multiple units via monitor outputs

• Input/Output
• 2 balanced 1/4" line inputs
• 4 stereo 1/4" headphone outputs (on front panel)
• 2 balanced 1/4" line outputs (monitor outputs)

• Physical
• Compact 1/3U rack-mount chassis
• External 16 VAC power supply
• Optional 3UMR rack adapter

Input
TRS Impedance	10K Ohms
Panel Controls
Headphone Level	1 to 12
Monitor / Feed Output	-80dB to +10dB
Mono Switch
Monitor / Feed Mute
Power Supply
Type	Linear
Input	16VAC/1000mA (factory configured)
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
Physical
Weight	5lbs.
Dimensions	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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Presonus warrants its products to be free from defects for 1 year from the date of purchase.

FOR SUPPORT WITH YOUR PRODUCT CONTACT:
225-216-7887