Lev335: Why would they have an upgrade? How about the high end 2 channel audio business is dead, even more dead in this economy. How else can you squeeze money out of your customers if no one is willing to buy a new amp? AH UPGRADE FEES! I am not saying that nothing is done in the upgrade, I am saying that Krell created this upgrade to generate revenues. Why on earth would anyone buy a new amp when they could come here and buy them discounted or slightly used for 50% off?