I don't own a V3, nor do I know much about polarity, but all of this reminds me of an experience I had 6 years ago when I bought my first subwoofer. I pluged it in, had it kicking, and then started to look at the switches in the back. It had a polarity switch, and I was like WTF is that? I read up in the manual, and searched online a bit, and had an ah-ha moment about how freakin' important it was to be consistent with the red-black colors of the speaker cables from the receiver to the speakers. Doh! All of those younger years I had no freakin' clue how important that was. After playing around endlessly with my stereo after learning this, I found that (to my ears) it mattered more that they were all wired the same way (either red-to-red or black-to-red), rather than some stupid miss-mash like I had going before. I remember feeling like an idiot, but I finally understood why it mattered because I COULD HEAR it when the polarity was different between the speakers. It was also quite amazing when I started playing with that polarity switch on the subwoofer. Since it wasn't "red" or "black," I wasn't sure which direction to flip it once I had all of my speakers correct. So, I put my head right inbetween the sub and a speaker and flipped the switch back and forth. Ah man, the difference was NIGHT AND DAY -- it was like a noise-cancelation machine on the low end! Switch it one way, no bass at all coming from either place, switch it back and BOOM, BOOM, BOOM (at least it worked that way before I turned on the low-pass routing to the sub, which removed the freqs from the speakers altogether, but with the bass in the speaker and the sub). It was incredible how much it dampened the bass, it was so obvious it wasn't even funny. It really gave me a new appreciation for polarity that's for sure.