does your system "warm up" and then sound better?

Mezmo, nice point.

I think that the warm up period would be shorter, in the mechanical sense (cones, drivers) but when it comes to cross overs, I guess they'd have to warm up like any other electronic device.

Heck, has anyone (hopefully not) considered how long it takes to warm up cabling?
(I'm only kidding!) :-)

All the best,
Nonoise

I could be dead wrong about this, but I think a passive device performs best when cold. I still have no conclusion as to why there seems to be an increase in performance after pausing my CDP. I still suspect it could be the crossovers cooling down a bit in the interim. They can and very often do, get sizzlingly hot. After all, a super conductor has theoretically zero resistance. I leave my SS amps on 24/7 also. But I think the reason they sound their best warmed up is because this is when offset and bias become stable. Not because the flow of electrons is optimal.

I turn my equipment on a few minutes before listening and turn it off when I'm finished. The cdp stays warm to the touch in standby so I don't think it needs any warm up time. The amp warms up in 10 minutes or so.
My car is at operating temp in about five minutes.

I used to own a 1973 Cadillac Deville. It had a 472cu.in. motor. This pig simply would not warm up until I started actually driving. No matter how long it sat idling!

I turn my equipment on for a minimum of thirty minutes before listening and and leave it on for thirty minutes after I've stopped listening. I don't know what gives but my system works much better after it's be on at least an hour !!!!!