Hooking the +/- up backward will not keep a speaker from working. It will cause a phase inversion. If all the speakers are inverted then it isn't a big deal. But if just your center is out of phase with the left and right, you'll get a suck-out in sound when something pans across the front.

You should see if you have any movies with nice smooth audio pans, and listen that they sound that way. Not that the audio disappears when halfway between speakers.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris