Sennheiser Headphones HD 51 User Guide

HD 51

Cat. No. 003512 HD 51-26-0

Cat. No. 003511 HD 51-16-0

Products for Industry | Stereo Headphones

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.

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

(ARiNC type A1)

HD 51-26-0.....................right-angled 3.5 mm double mono jack

(ARiNC type A2)

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)

Cat. No. 047299