Please rest this thread. I'm 60 and have noticed the break in in various pieces of equipment. One SACD PLAYER had a 2k mod done in 03 and when it came back it sounded lifeless. It was until I ran in continuously for hours and the tubes opened up then the sound was awesome. If I had of made a review the first day then it would not have been a valid review. Same thing with the last speakers I bought. It took weeks until they opened up. Now 3 years ago I dropped 10k on an amp and right out of the box on the first couple of notes I heard a certain purity of tone and a dark background that wasn't there with the 20 year amp it replaced. Same manufacturer.