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Model 27
The David Clark Company Model 27 Combines Comfort Durability and Quality construction with Superior Low frequency noise attenuation.
     
  • Assembled by means of bolts and self-locking cadmium plated nuts.
  • Premium Quality chrome plated steel headband, in accordance with demanding Government specifications.
  • Closed cell, nonabsorbent bump cushion with protective outer support
  • Foam-filled ear seals for perfect fit, best noise attenuation, and unequaled comfort.
  • Ear cups of top quality, high impact ABS, made extra rigid by patented ribbed construction.
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Available in One Configuration:

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Backed by our 1-Year Guarantee and our exceptional customer service policy.
Quality-made in the U.S.A. flag  
     


NRR
22 dB

 NOISE ATTENUATION DATA - MODEL 27
Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000
Attenuation (dB) 22.9 26.4 26.1 31.0 31.5 33.6 35.5 35.8 35.8
Standard Deviation 3.8 3.5 3.7 3.7 3.3 4.2 4.7 4.9 4.3
     
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