Just inherited a pair of M & K speakers (well, loaned). Now the instructions say that the impedance of the speakers is 8ohm, but the speakers themselves say nothing. I thought the speakers had less of a tolerence, and before hooking them up and exloding them, I thought I'd better check to see if anyone can shed some light on the matter. The speakers are being hooked up to a Yamaha RX-V4600, and this does 8ohm. Any thoughts?