Sennheiser Network Cables HD 31 User Manual

HD 31  
Cat. No. 003510 HD 31-26-0  
Cat. No. 003509 HD 31-16-0  
Products for Industry | Stereo Headphones  
General Description  
The HD 31 is a pair of open, dynamic stereo headphones which are small,  
light, robust and comfortable to wear. The ear pads can easily be changed,  
and the headphones can be supplied with any company logo printed on  
them.  
Technical Data  
Frequency response .................................................20 – 20,000 Hz  
Transducer principle.................................................. dynamic, open  
Nominal impedance .........................................300 * as standard  
Characteristic SPL ...................................................94 dB (at 1 kHz)  
THD ...............................................................................................< 1 %  
Ear coupling ......................................................................supra-aural  
Contact pressure ..........................................................approx. 1.3 N  
Weight (without cable)................................................approx. 50 g  
Connection cable.................................................1.2 m, single-sided  
Connectors  
HD 31-16-0................................. right-angled 3.5 mm stereo jack  
(ARiNC type A1)  
HD 31-26-0.....................right-angled 3.5 mm double mono jack  
(ARiNC type A2)  
Features  
Exceptionally light  
Compact design  
Robust  
Replaceable ear pads  
Weiter Übertragungsbereich  
Excellent frequency response  
Choice of connectors (see Technical Data)  
Company logo option  
Recommended Accessories  
Ear pads (1 pair)  
Cat. No. 047299  
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