When I get a new component, I leave it "on" continously for a couple weeks, with maybe the FM radio playing softly. I don't do this to "break in" the component, but rather to sort out any electronic component that is likely to fail. Personally, I think the break-in thing is a non issue, but barring two of the same component, one broken in and one not to compare directly, the debate rages on.

------------------
The Soundhound Theater