Anyone have any experience with these monoblocks? The reviews are all over the place, so I don't know if they are nice, and have potential, or if they sound terrible, and can not be upgraded. I know I already have the finest amp in the world, but just curious if Bob created anything close to the Phase Linear after leaving the company and going on to create other amps. I'd be curious to learn how other folks would rate his other creations....from best to worst... I have seen a lot of Carver Sonic Holography and other amps carrying his name but have never heard any of them...