<font color='#0000FF'>And you are sure there is nothing wrong with your speakers? The reason I say this is becasue, recently, my center speaker tweeter blew and my amp started shutting off at high volume scenes. As usual, I suspected the amp first and made sure that it wasnt overheating or there were no loose connections. After going through a wild goose chase I discovered that my tweeters on the center speakers had shorted out and was causing the shut down so if I were you, I would check all the speakers thoroughly before blaming the amp or pre amp.</font>