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- From: matthews@eecs.ucdavis.edu (Thomas W. Matthews)
- Newsgroups: rec.audio
- Subject: Re: Question about rear speakers for surround sound
- Message-ID: <20595@ucdavis.ucdavis.edu>
- Date: 28 Dec 92 16:48:50 GMT
- References: <28780@oasys.dt.navy.mil> <5751@gold.gvg.tek.com> <541@bit.UUCP> <5757@gold.gvg.tek.com> <1992Dec28.033413.11695@midway.uchicago.edu>
- Sender: usenet@ucdavis.ucdavis.edu
- Organization: Division of Electrical Engineering and Computer Science, UC Davis
- Lines: 22
-
- Has anyone tried using an unbaffled driver as a rear speaker?
- The listening position could be in the null of the rear speaker's
- directional response. Room reflections would convey the rear channel
- sound to the listeners. Of course, the reflections off the left wall
- would be out of phase with the reflections off the right wall; the
- listener would be in the "crossfire". I don't know how this would be
- perceived.
-
- The lower limit of the frequency response of such a rear speaker would
- depend on the size (and type) of LF dirver, how it's mounted, and maybe on
- room dimensions (did I leave anything out?). I certainly wouldn't expect
- a flat response out of such a rear channel, but maybe that's not
- going to ruin the effect.
-
- Two LF drivers could be mounted on a single board, facing opposite directions
- and wired out of phase. That way each side gets the benefit of one driver's
- front radiation. Two MF drivers with the same configuration could be added.
- I suppose one could also add tweeters.
-
- Maybe someday I'll have the time to try this!
-
- Tom Matthews
-
