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RE: Omni-directional speakers better for problematic rooms?

Posted by David Yost (A) on January 11, 2009 at 06:18:56

In Reply to: Omni-directional speakers better for problematic rooms? posted by dave123456@mail.com on January 11, 2009 at 02:29:02:

In my experience, very directional monopole speakers -- I'm thinking horns/waveguides here -- are your best bet for near wall/corner use. They don't tend to splash as much acoustic energy onto the front and side walls, preserving directional cues. They can image like an sob as a consequence. Roy Allison also found that placing the woofer at the floor/wall boundary would minimize reflections that would otherwise cause audible mid-bass suck-outs.

Other than that, very wide but shallow conventional boxes like the old Boston Acoustics A-series or very anti-diffraction designs like the original Snell A were designed for near/on wall use.

I had the original Gallo Reference speakers for awhile and never could get them far enough from room boundaries to sound right to me.

Last comment: I talked to Winslow Burhoe (you might remember him as the designer of the EPI/Epicure/Genesis/etc. speakers) some time ago about this very issue. One of his first commercial products back in the 60's was an omni based on the use of 4 of his "Burhoe modules" in a huge tower called the EPI1000. He said that the preferred placement of these monsters was, assuming a rectangular room, on the centerline of the long room dimension, with each speaker 1/4 of this dimension away from the nearest short wall. In other words, about as far from any boundaries as possible. I can only imagine the WAF of that layout.

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