Audiophilepure

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“While moving the SVS towers closer to or further from the wall increased and decreased overall bottom-octaves balance by obvious degrees, it did so with somewhat less tendency to emphasize the “boom” octave centered around 80 Hz or so than I’ve experienced from some other tower speakers. I posit that the Prime Pinnacle tower’s three woofers, each at a different height from the floor, mitigates the floor-bounce (or “Allison effect”) of low- frequency first reflection from the floor inducing a peak-dip-peak as it rejoins the direct radiation—first subtractively, out of phase, and then additively, in phase, and so on. More accurately, this must create a series of closely spaced floor-bounce response ripples, but the overall effect seems to be to smooth 50-150 Hz response a good bit, even when fairly close to a wall. This is a welcome additional benefit, and quite possibly another factor in the slim multi-woofer tower trend.”

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