No problem at all. With mine when I first got it, I was nervous. It was way to bright and had zero punch. It was like I shut down the woofers on my M80's. After a few weeks it got a lot better and I mean a lot better. Even my wife noticed and that alone made my jaw drop. I also never have shut mine off since I got it. Anyway, sorry if I sounded pushy etc, it's just that everything Klaus told me to watch for with this amp, was true and that included the long break-in period. You now however have me curious as to why you didn't notice anything? Did you get the cap upgrade with yours? I did and so far I'm pleased with it!