Just wanted to add a trick that I use to break in new speakers or drivers (when I'm impatient). I will put my loudspeakers face to face, but not touching and wire ONE out of phase. I'll turn FM muting off and tune to white noise. Theoretically, if your pre/amp/receiver channels are perfectly balanced, and your loudspeakers are perfectly matched, you will hear no noise. In actual practise (for me) I've always heard a slight amount of 'hiss' but it's not too intrusive. By doing all this, it allows (almost) a full range signal to your speakers at a level that won't drive you nuts, however, caution is needed as you can damage your equipment this way too. IMHO, it all needs breaking in.

CMT