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From: caf@cdi.UUCP
Newsgroups: net.audio
Subject: Re: High power amps are sometimes useful - (nf)
Message-ID: <210@cdi.UUCP>
Date: Wed, 8-Jun-83 12:22:07 EDT
Article-I.D.: cdi.210
Posted: Wed Jun  8 12:22:07 1983
Date-Received: Sat, 11-Jun-83 08:29:21 EDT
References: <1089@hp-pcd.UUCP>
Lines: 21

I recently heard Orff's "Carmina Burana" at the Oregon Sympnony.  Based
on past observations with my sound meter, I rather suspect that the
bass drum peaked at over 100 db in one place near the end of the
piece.  Now, if very much of that number had been that loud I would
have had to put my fingers into my ears to attenuate it, but in this
case the whump was musically and emotionally very proper and
effective.  If you are getting only 70db from 1 watt, you'll need 1000
watts to get 100 db.  Perhaps you will want to work very hard at making
your listening environment very quiet before you get serious about CD's
and/or DBX records as reproduction of deep bass at 1000 watt levels
would entail considerable expense.

BTW, does anyone know the comparative effect of 100 db of low bass
compared with the same power level (no weighting) in the midrange (re
hearing loss, etc.)?

-- 

	Chuck Forsberg, Chief Engr, Computer Development Inc.
	6700 S. W. 105th, Beaverton OR 97005   (503) 646-1599
	cdi!caf