Amazing how manufacturers figured out how to make components sound better after they break in. It must be true, since no one actually says, I broke my amp in and now it sounds bad, I think I'll take it back. Wait, oops, it's too late, the dealer won't take it back now. Get the picture? In terms of speaker break in, it takes just a few minutes to break the drivers in according to some articles I found. Just do a search on that topic.