Hey,
I'm using isotec 16awg h2o free copper, It could be the way I run the systems wall-a used the amplified subwoofer to run front speakers, so when I went from wall-a to wall-b some how when running wire I didn't run wire for wall-b speakers, I don't know! I run straight from reciever to wall-b speakers and they work fine the existing wire in wall-b I can't get to work at all, unless the wires got fried somehow through the amplified subwoofer when I was changing wires around ,,,,the speakers on wall-b side have been sent to manufacturer because they quit working , had them tested at local audio store they confirmed them not working, so that makes me believe either the wires are fried or I didn't run wire for speakers to wall-b, I'm sure this doesn't make sense to you but I tried! TIA digthis