Today i turned on my HT system and i noticed my back surround speaker was not working im running a 6.1 setup, I tryed everything i could think of and could not get it to work ,so i ended up running a new speaker wire just to see if i had a break in the old wire , and guess what it worked, then i figured out what happen , i run that wire underneath the carpet right under the area where i do my exerciseing, I bet all the jumping up and down on the carpet must have busted the wire underneath the carpet, I spent 6 hours trying to figure out why the dog gone back surround speaker would not work, just something to watch for.