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From: prk@charm.UUCP (Paul Kolodner)
Newsgroups: net.audio
Subject: Headphones
Message-ID: <630@charm.UUCP>
Date: Mon, 22-Apr-85 18:20:52 EST
Article-I.D.: charm.630
Posted: Mon Apr 22 18:20:52 1985
Date-Received: Tue, 23-Apr-85 07:03:46 EST
Organization: Physics Research @ AT&T Bell Labs Murray Hill NJ
Lines: 12

Bilsom international sells hearing protectors and earplugs for noise
control applications in harsh working environments, like the poor
slobs who direct jet airpanes on the runways have to deal with.
Their top-of-the line model boats an acoustic attenuation of 26dB.
I own a pair.  Wearing them is like being locked in a basement
in Tehran after curfew.  Of course, exremely low frequencies
are hard to attenuate in transmission, and extremely high frequencies
also seem to get through, so that speech is intelligible while 
most 'noise' is not.  Stereo headphones will not be as good.
I can hardly resist exposing my prejudice that, in the so-called
'high-end' of high-high-fi enthusiasts, it seems that there is more
familiarity with fancy specifications than there is understanding.