The new HP4 from PreSonus answers the need for a headphone distribution amplifier with professional specifications in a small package at an affordable price. The HP4 features four discrete headphone outputs on the front panel each with its own volume potentiometer and 150mW of amplification per channel. The HP4 also features adjustment over control room monitors with a separate volume control, monitor mute switch and mono switch giving you an extremely powerful monitoring solution at an amazingly low price.

• Four High Power Headphone Outputs
• Ultra loud (150mW per channel)
• Ultra quiet operation
• Musical Wide Dynamic Range
• Control Room Monitor Outputs with Level Control
• Mono or Stereo Operation
• Monitor Mute Switch
• Daisy Chain an Infinite Number of Units
• Compact package

Specifications:

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