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Model 27

The David Clark Company Model 27 Combines Comfort Durability and Quality construction with Superior Low frequency noise attenuation.

bulletAssembled by means of bolts and self-locking cadmium plated nuts.
bulletPremium Quality chrome plated steel headband, in accordance with demanding Government specifications.
bulletClosed cell, nonabsorbent bump cushion with protective outer support
bulletFoam-filled ear seals for perfect fit, best noise attenuation, and unequaled comfort.
bulletEar cups of top quality, high impact ABS, made extra rigid by patented ribbed construction.


NRR
22 dB

NOISE ATTENUATION DATA - MODEL 27
Frequency (Hz)125250500100020003150400063008000
Attenuation (dB)22.926.426.131.031.533.635.535.835.8
Standard Deviation3.83.53.73.73.34.24.74.94.3
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Sandown Wireless

P.O. Box 564

East Hampstead, NH 03826

Toll Free: 866-379-8437

Tel: 603-974-0725

Fax: 603-887-2117

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