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Path: utzoo!decvax!ittatc!dcdwest!sdcsvax!sdcrdcf!psivax!tommie
From: tommie@psivax.UUCP (Tom Levin)
Newsgroups: net.audio
Subject: Re: subwoofers and xovers
Message-ID: <808@psivax.UUCP>
Date: Wed, 23-Oct-85 16:29:32 EDT
Article-I.D.: psivax.808
Posted: Wed Oct 23 16:29:32 1985
Date-Received: Sat, 26-Oct-85 03:12:24 EDT
Reply-To: tommie@psivax.UUCP (Tom Levin)
Distribution: na
Organization: Pacesetter Systems Inc., Sylmar, CA
Lines: 27
Keywords: Woofs (arf, arf)


 In article <1556@hammer.UUCP> tekecs!doghouse.TEK!snoopy writes:
>Before everyone runs off and builds subwoofers with two 8" drivers,
>I'd like to point out that this isn't going to be much of a subwoofer.

Ahem...the audio-pro B2-50 subwoofer uses (2) 5-1/4" drivers and I
believe it is fairly flat down to 20Hz.

A friend of mine designed a subwoofer based on the audio-pro idea.  He used
2-6" phillips drivers in acoustically isolated, ported, cabinets.  One
driver faces inward and the other faces outward.  They are connected
electrically by a motional feedback circuit.  The woofer has it's own
mono amplifier.  My friend measured the frequency responce as down
3db at 20Hz.  It sounds VERY GOOD!  Go listen to any of the audio-
pro subwoofers.  You might be surprised at the bass you can get from
a moderately sized driver.
-- 
__________________________________________________________________________
Tom Levin {ttidca|sdcrdcf|logico|scgvaxd|bellcore}!psivax!tommie

You've seen those car stickers that say "Baby on Board"???
				_________
I want one that says:	       /         \
			      / Psychotic \
			     /	   On      \
			     \	  Board    /
			      \___________/