Sennheiser HD 400 Pro Professional Headphone
What's in the box?
 HD 400 PRO Studio Reference Headphone 3 m coiled cable with 3.5 mm jack plug 3.5 mm jack plug to 6.3 mm adapter 1.8 m straight ...
What's in the box?
- HD 400 PRO Studio Reference Headphone
- 3 m coiled cable with 3.5 mm jack plug
- 3.5 mm jack plug to 6.3 mm adapter
- 1.8 m straight cable
- Quick Guide
- Safety Guide
Technical Data
- 
- Impedance
- 
120 Ω
 
 
 
 
- 
- Frequency response
- 
6 Hz to 38 kHz (-10 dB)
 
 
 
 
- 
- Sound pressure level (SPL)
- 
110 dB (1 kHz / 1 V RMS)
 
 
 
 
- 
- THD, total harmonic distortion
- 
< 0.05 % (1 kHz / 90 dB SPL)
 
 
 
 
- 
- Ear coupling
- 
circumaural
 
 
 
 
- 
- Jack plug
- 
3.5 mm jack plug with 6.3 mm adapter
 
 
 
 
- 
- Weight
- 
240 g
 
 
 
 
- 
- Storage temperature
- 
–55 °C to +70 °C (–67 °F to 158 °F)
 
 
 
 
- 
- Operating temperature
- 
–15 °C to +55 °C (5 °F to 131 °F)
 
 
 
 
- 
- Operating relative humidity
- 
≤ 90 %
 
 
 
 
- 
- Accoustic principle
- 
dynamic, open
 
 
 
 
- 
- Ear pad material
- 
Velour
 
 
 
 
 
- 



 
           
           
     
     
    

