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From: ivanov@imag.imag.fr (eric ivanov)
Newsgroups: rec.audio.high-end
Subject: Re: Subwoofer Building
Message-ID: <11071@uwm.edu>
Date: 16 Apr 91 12:34:09 GMT
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Approved: tjk@csd4.csd.uwm.edu
Originator: tjk@csd4.csd.uwm.edu


In article <11039@uwm.edu> gstead@maestro.mitre.org (Graham Stead) writes:
>In article <10976@uwm.edu>, cs004017@cs.brown.edu (Steve Liebling) writes:
>|> 
>|> 5)  What in the world is a double voice-coil driver?  Simply an 
>|> electrodynamic transducer with two voice coils suspended in a 
>|> cylindrical magnet hooked to a cone? Why two, and not just one bigger one?
>
>I don't know how they're constructed...but in my experience they're
>used for connecting left & right amplifier outputs to the same 
>driver.
>
Cantilene (french speaker builder) utilize double voice-coil drivers in its
three-way two-driver designs (bass and midrange are directed to the two coils
of the double voice-coil driver, high frequencies are handled
by an ordinary tweeter.)
Another french speaker, Vecteur Premiere, uses
double voice-coil drivers, but I don't remember in which manner. I guess
this is to reduce intermodulation distortion, but that's only a guess.
Both speakers received rave reviews in France (and in Germany for the latter.)

>-Graham

eric
-- 
eric ivanov@imag.fr  "-Fishing ? -Not today."