| Subject: | Re: Isolation headphones |
|---|---|
| From: | "Mike Feldman" gidney_n_cloyd |
| Date: | Wed Dec 12, 2007 6:58 pm ((PST)) |
On 12 Dec, 2007, at 8:38 PM, Russell wrote: > I continued to be disappointed with headphones (not earphones) that > claim to be isolation headphones. Can anyone recommend a model that > gives say 40db(A) isolation? > No such animal -- your head is too leaky, sound-wise. Best you can do with "perfect" over-the-ear hearing protectors is about 39 dB at 1 kHz, and maybe 42 at 4 and/or 8 kHz. But you'll get less attenuation at lower frequencies. For example: http://www.stratfords.com/eardefenders/ear_defenders_jsp_monaco.html http://www.davidclark.com/HeadsetPgs/model310.htm |
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