Sennheiser HDC 451 Noiseguard headphones Specifications

Sidebar: Specifications

Description: Dynamic headphones with Noiseguard active noise-canceling circuitry. Transducer principle: dynamic, Open-Aire Coupling to ear: supra-aural. Frequency range: 20Hz–18kHz. Impedance: 270 ohms. Distortion: <1%. Active attenuation: >10dB between 400Hz and 1kHz. Headphone caliper pressure: approximately 1.6N (5.6 oz). Connector: 3.5mm plug. Power supply: 2 AA cells. Operating time: 80 hours.
Dimensions: Weight (w/o cable): 110gm (3.9 oz). Cable: single-sided, 2m (6.5').
Price: $269 (1995); $149.95 (2006). Approximate number of dealers: 750.
Manufacturer: Sennheiser Electronic Corp., 6 Vista Drive, P.O. Box 987, Old Lyme, CT 06371. Tel: (203) 434-9190. Fax: (203) 434-9022. Web: www.sennheiserusa.com.

COMPANY INFO
Sennheiser Electronic Corp.
6 Vista Drive, P.O. Box 987
Old Lyme, CT 06371
(203) 434-9190
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