One of my duel subs is not performing,, there is very little movement from the woofer, and the sub switches on when it receives a signal, I removed the amp and checked for scorching, none all connections good, checked cable to AVR all good but if I swap over sub cables I don't get the humm while connecting the sub I do on the other sub, I have contacted Klipsch, very slow customer service still no response since the 17 th of August.
Any ideas would be appreciated.