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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: Re: You're right.... posted by John Ashman on April 6, 2007 at 08:52:58:
I don't think that would work.I think you would get some smoothing, but I think the two bass pressure waves will largely pass through one another rather than the one neatly cancelling out the other throughout the room. The simulations and measurements I have seen for subwoofers in corners doesn't show evidence of global cancellation of the primary room modes. Recall the link above showing subs in four corners - it looks to me like more than one room mode is still significantly excited, and if having subs in opposite corners suppressed room modes we'd expect that four subs in floor corners would only leave the floor-to-ceiling 71 Hz mode unsuppressed.
Asymmetrical placement of multiple subwoofers doesn't rely on cancellation - it relies on summation smoothing due to each subwoofer generating a unique peak-and-dip pattern at any given listening position.
Duke
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- Re: You're right.... - Duke 00:30:12 04/08/07 (0)
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