AKG HP4E
4-Channel Headphone Amplifier
The HP4E professional headphone amplifier features two stereo input and four stereo output channels of high-quality audio. Designed for ease of use, convenient switches on the front plate enable you to select your designed input. Each channel features both a 1/8” (3.5 mm) and 1/4” (6.3 mm) headphone output for easy connectivity – no adapters required. Housed in a sturdy metal chassis, the HP4E is an ideal headphone amp for any recording session. Available in the US only.
Features
- Small footprint
 - Carefully selected components
 - Two stereo inputs
 - Two outputs per channel
 - Rugged construction
 
Specifications
- Design: 4-Channel Headphone Amplifier
 - Input: 6.3 mm (1/4”) socket - unbalanced
 - Input impedance: 100k Ohms
 - Output: 3.5 mm (1/8”) socket and 6.3 mm (1/4”) socket per channel
 - Output impedance: 11 Ohms
 - Audio frequency bandwidth: 20 - 20000 Hz
 - Max. output level: 220 mW
 - Distortion: <0.05%
 - Signal to Noise: better than 85 dB-A
 - Net weight (incl. power supply): 760 g