AKG HP4E

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.

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