Pretty sure its an RCA issue have not had it checked out yet tho. The person I bought it from said they had it checked and that was the issue, but I dont know if thats true or not to be honest with you. But you can still run 6 speakers off it running it a 2 ohm on each channel, so thats enough for most people. Will take $110 shipped to anyone interested, WIRE IS NEEDED TOO!