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Main Question or Discussion Point
Besides reinforcing bass, doesn't placing a subwoofer in a corner disperse resonances more effectively throughout the room? If so, how?
Low frequency audio does not suffer from multi-path interference as much as mid and high frequencies do, because the wavelength is relatively long compared to the distance to the wall surfaces.Book shelf speakers seldom have efficiency above one percent. For the Klipschorn (an invention of Paul Klipsch), it's something about 30%. The horn-loading makes it far more efficient, but the speakers really have to be big. The Klipschorn principle uses the walls of the room as effective extensions of the speaker itself. This effect applies only to sub-woofer frequencies.