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- Newsgroups: rec.audio.car
- Path: sparky!uunet!usc!wupost!gumby!destroyer!cs.ubc.ca!alberta!kakwa.ucs.ualberta.ca!ee.ualberta.ca!demaine
- From: demaine@ee.ualberta.ca (Cal Demaine)
- Subject: Re: Isobarik subwoofer design
- Message-ID: <demaine.725930777@ee.ualberta.ca>
- Sender: news@kakwa.ucs.ualberta.ca
- Nntp-Posting-Host: bode.ee.ualberta.ca
- Organization: University Of Alberta, Edmonton Canada
- References: <1992Dec30.044133.27640@news.weeg.uiowa.edu> <demaine.725706735@ee.ualberta.ca> <1992Dec31.100944.25729@oracle.us.oracle.com>
- Date: Fri, 1 Jan 1993 23:26:17 GMT
- Lines: 24
-
- ldormon@uk.oracle.com writes:
-
-
- >Err just one question about isobarik designs, if you have the drivers
- >one behind the other (ie NOT firing into one another), how do you know
- >what the volume of the tunnel should be, or do you just put them as
- >close together as possible.
-
- Well, with the drivers mounted back to front, and wired IN PHASE, the volume
- of the tunnel is immaterial. HOWEVER, I strongly recommend you keep it quite
- small so the air inside acts as a uniform mass. This, for once, agrees
- nicely with car audio, where we are always trying to save space.
-
- In practice, my isobaric (C! C! C!) design had a dustcap to magnet distance
- of about 2 inches. Make sure you wire the drivers before installing them!
- (The bitter voice of experience speaking here.)
-
- - Cal
-
- --
- --------------------------------------------------------------------------------
- - Cal Demaine | "You shot him in the back!"
- (demaine@bode.ee.ualberta.ca) | "His back was to me!" - El Diablo
- --------------------------------------------------------------------------------
-