I don't understand how the "phase" adjustment works. I know that a switch can reverse the polarity to the speaker. But, if I set the dial to, say, 90 degrees, how does it adjust the signal to that? If you go back to the switch analogy, at one setting, a current flowing from + to - would pull the speaker in one direction, and the other setting would pull it the other way. But, at 90 degrees, it would pull it in both directions equally, it wouldn't move, and you'd get no sound. I don't see how it's possible to change the phase besides some fairly complex processes that would introduce significant delay. The concept of phase doesn't even make sense with some signals (such as noise). Maybe the SVS guys can give me some insight.