Beyerdynamic DT-150 250 Ohm + Presonus HP4 4 Channel Pro Headphone Amplifier Amp

Package Includes:

• (1) Beyerdynamic DT-150-250 Isolation Closed Back Headphones
• (1) Presonus Hp4 4 Channel Headphone Amplifier

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Descriptions of DT-150-250:

Authorized Beyerdynamic Dealer!

The DT 150 is a closed dynamic studio headphone with a modular construction offering excellent ambient noise isolation. The powerful neodymium magnet system provides high-fidelity reproduction and a balanced sound. The headband and earphone cushioning systems have been carefully designed for maximum comfort and serviceability. The padded headband can adjusted to fit on every head.

Features:

• Beyerdynamic DT 150 Closed Monitoring Headphones For Use In Loud environments, broadcast, film and recording studios
• Closed headphone
• Excellent ambient noise attenuation
• Powerful neodymium headphone system for excellent reproduction accuracy
• Wide frequency response (5 - 30.000 Hz)
• Capable of handling very high SPL
• Rugged, easy serviceable construction as all parts are replaceable
• Single-sided, detachable cable
• Circumaural ear pads
• Excellent comfort for long-term wearing

Details:

• Transmission type Wired
• Headphone design (operating principle) Closed
• Headphone impedance 250 ohms
• Headphone frequency response 5 - 30.000 Hz
• Nominal sound pressure level 97 dB
• Construction Circumaural (around the ear)
• Cable & plug Straight connecting cable with mini-jack plug (3.5 mm) & ¼“ adapter (6.35 mm)
• Net weight without packaging 388 g

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Video of HP4:

Features Summary of HP4:

• 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

Description:

"To my amazement, your HP4 sounded as good as both of my hi-fi stereo heaphone amps. Very very clean and loud. I can't believe you put 150 mw per channel, @52 ohms, to four headphone outputs and offer such a quality unit for very little over $100."
- M. Burke, via email

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.

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Technical 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	5 lbs.
	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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