Found this pretty interesting myself and though I would share with all of you guys with tunable subs.

Crossover is set at 80Hz on the Denon and bypassed on the SVS. Sub level is at 1/4 in my 2800ft^3 basement. Ports were blocked and subsonic filter adjusted per manual specs for this test. Sub is calibrated flat as far as I'm concerned.

Do you really think I need a +2dB to +6db boost? It nearly causes structural damage as it is.

http://members.cox.net/al1en/SubTuning_2.pdf

Dave


M60s, VP150, QS8s(3), SVS PB12-isd, Denon 3805, Emotiva UPA-7