I have a problem. I was running the THX optimode, and it talks about in-phase and out of phase. Now, when it plays the very first test L/R, you can tell, when either of them are in phase or out of phase. Now here is the problem. The mains are DIFFERENT brand than all of the other ones: L/R "Sharp" C/RL/RR "Philips" When it starts playing the other test, I can't figure out which ones are in phase or out of phase...they sound almost exactly the same? I have them connected by Red on Red and Black on Black, but they sound EXACTLY the same in-phase or out of phase, so how can I tell? By the way, NONE of the speakers have the same TONE. They are all of TONE even though 3 of them are all the SAME EXACT PHILIPS speakers! Each tone sounds completely different from one speaker to the other.