Finally taken my courage in both hands and ordered a pair of B&W Nautilus 803s. So the next question is, what's the best way to break them in? I vaguely recall reading somewhere (maybe in "What HiFi" ) that if you're too selective about what you play for the first couple of months you can end up with speakers that sound "broken in" at certain frequencies but not at others. I can't quite get my head around what could be happening mechanically to produce that effect, unless the signal is so selective that it only uses (say) mid-range driver and tweeter and never affects the bass driver. Can anyone confirm or deny that this is possible? If we assume for the moment that, for whatever reasons, it is preferable to use as wide a range of frequencies as possible, then that leads me on to thinking about white noise. If nothing else this is something which could probably be left running during the day while I'm out of the house without completely p*ssing off the neighbours. Can anyone suggest a good source of nice, even, broad-spectrum white noise, either CD/DVD-based, or perhaps as derived from the output of a PC sound card? And in general does anyone have any good hints about breaking in speakers in a way that minimises breaking-in time while maximising the life of the speaker?