Sennheiser HD 51 Specifications

HD 51
Products for Industry |
General Description
The HD 51 is a pair of open, dynamic stereo headphones which are small,
light, robust and comfortable to wear. The headband has extra padding
for added comfort. The ear pads can easily be changed, and the headphones
can be supplied with any company logo printed on them.
Features
Exceptionally light
Compact design
Robust
Replaceable ear pads
Superb frequency response
Single-sided cable
Choice of connectors (see Technical Data)
Company logo option
Recommended Accessories
Ear pads (1 pair)
Stereo Headphones
Cat. No. 047299
Cat. No. 003512 HD 51-26-0
Cat. No. 003511 HD 51-16-0
Technical Data
Frequency response ................................................. 18 – 20,000 Hz
Transducer principle.................................................. dynamic, open
Nominal impedance .........................................300 Ω* as standard
Characteristic SPL ................................................ 100 dB (at 1 kHz)
THD ...............................................................................................< 1 %
Ear coupling ...................................................................... supra-aural
Contact pressure ..........................................................approx. 1.3 N
Weight (without cable)................................................ approx. 55 g
Connection cable.................................................1.2 m, single-sided
Connectors
HD 51-16-0 ................................. right-angled 3.5 mm stereo jack
HD 51-26-0 ..................... right-angled 3.5 mm double mono jack
(ARiNC type A1)
(ARiNC type A2)