Hello i am having an issue possibly with home wiring that is causing my woofers to move no matter what source is (lp, aux) approx .5" - 1" when volume is very low or sometimes when volume is turned all the way down. When music is playing it is not moving to the beat of the music. Someone suggested a power conditioner. Any suggestions? I'm using a Sony integrated amp and dlk model 2 speakers. I have had similar issues with a different amp. House has old wiring but new panels. Thanks.