Overview
THE IDEAL COMPACT HEADPHONE AMP
For small and medium studio applications
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.
Features
- Small footprint - with 4 totally independent stereo high-power amplifiers in half 1 RU package
 
- Carefully selected components - for high quality audio even at extremely high volume levels
 
- Two stereo inputs - for full flexibility with independent selection of input for each output
 
- Two outputs per channel - with each a 1/4” (6.3mm) and 1/8” (3.5mm) stereo socket so no adapter is needed
 
- Rugged construction - with strong metal housing to withstand rough working environments
 
 
Specifications
| General | 
| 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 to 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 | 
 
 
 |