I just finished hooking up my new speakers (Axiom M22ti & QS8s & VP150). However, on the right surround, when I hooked it up, it immediately started to hum. The receiver is off. None of the other ...

I have a pair of first gen Swan M200 speakers I've been using with my PC for I don't even know how many years. They've been fantastic. Then suddenly as soon as I power them on I hear a hum. The hum ...