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HDC 55 NoiseGard™
Products for Industry | Stereo Headphones with
NoiseGard™ Active Noise
Compensation
General Description
First class stereo headphones with NoiseGard™ active noise compensation
of up to approx. 10 dB. The HDC 55/HDC 551 NoiseGard™ headphones 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 (from 500 pieces).
Features
Light
Compact design
Swivelling earpieces
Robust
Replaceable ear pads
Excellent frequency response
HDC 551 with in-line battery pack
Company logo option
Recommended Accessories
Hygiene pads Cat. No. 081452
Product Variants
HDC 55-26, 3 Klinkenstecker: 2.5 + Doppel 3.5 Cat. No. 004859
HDC 55-16, seat powered, 2.5 mm Klinke + 3.5 mm
stereo jack (=Doppelstecker) Cat. No. 004860
HDC 551-16-0, battery powered Cat. No. 005222
HDC 551-26-0, battery powered Cat. No. 005223
Technical Data
Frequency response.................................................20 – 18,000 Hz
Transducer principle.................................................. dynamic, open
Nominal impedance ................................................................. 270 Ω
THD ...............................................................................................< 1 %
Active noise compensation..........................................10 dB ± 3 dB
(between 300 – 900 Hz)
Operating voltage
HDC 55-16/-26...........................................11 – 16 V DC, typ. 7 mA
HDC 551...............................................................2 x AA size battery
Operating time...............................................................approx. 60 h
Ear coupling......................................................................supra-aural
Contact pressure...........................................................approx. 1.6 N
Weight (without cable)..............................................approx. 115 g
Connection cable................................................... 1.4 m, dual-sided
Connectors
HDC 55-26............................special right angled 3-pin connector,
2.5 mm jack and 3.5 mm double mono jack,
seat powering (ARiNC type C2)
HDC 55-16............................special right angled 2-pin connector,
2.5 mm jack and 3.5 mm stereo jack,
seat powering (ARiNC type C1)
HDC 551-16-0 ........................... 3.5 mm right-angled stereo jack,
battery powering (ARiNC type A1)
HDC 551-26-0 ...............right-angled 3.5 mm double mono jack,
battery powering (ARiNC type A2)
2-pin special connector 3-pin special connector
Cat. No. 004860 HDC 55-16
Cat. No. 004859 HDC 55-26
Cat. No. 005222 HDC 551-16-0
Cat. No. 005223 HDC 551-26-0