So I've tried the method where positive goes to the high side and negative goes to the low side. I'm not sure if it was superior or not, I couldn't really sense a difference, but to turn off the system, reconnect each speaker and turn it back on is tough to compare with!
I've also discovered that my speakers are more laid back than I had thought. Paradigm Signature S6v2, and I had become aware that vocals tended to be warmer. I had thought it was my electronics, Parasound Halo, but when I swapped in Ascend Sierra 2's, the sound was more open and vocals too. Love those bookshelves, by the way, they go toe to toe with the much more expensive Paradigms except in the bass department which is to be expected with a tower.
Anyway, I'm somewhat surprised at the laid back house sound, Paradigm hasn't been known for this, at least in their lower lines. I started out with Emotiva gear on these speakers and they tended to be harsh at higher volumes with some sibilance or distortion present in some tracks. That was fixed with the move to Parasound gear, and with all of the tinkering I've done lately the system is sounding better than it had.
