Product Description
David Clark Model 27
Ear protection 12452G-01, David Clark Model 27 Hearing Protectors, ear protection
This Over-the-head Style Deluxe Hearing Protector is a "David Clark" high quality hearing protector. It has superior noice attenuation in the low frequency range. The foam-cushion headpad and ear seals are easily replaceable.
| Noise Attenuation Data | ||||||||||
| NRR 27 dB | Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 3000 | 4000 | 6000 | 8000 |
| Attenuation (dB) | 17.6 | 25.0 | 30.9 | 33.9 | 36.9 | 38.4 | 39.0 | 37.7 | 35.7 | |
| Standard Deviation | 1.9 | 3.0 | 2.2 | 1.3 | 1.5 | 2.1 | 2.1 | 2.5 | 2.2 | |
Note: These are for hearing protection only and do plug into the aircraft's audio system
