Hi,
I have ampzilla 2000 second editions. I think they won the Absolute Sounds 2011 amplifier of the year award. I like their sound but I'm sure there are other competitive amplifiers on the market. I would suggest trying to have an in-house demonstration, John Casler is a dealer for this amplifier and has a good reputation on this website.
I have had problems with blowing fuses but Wyred 4 Sound (manufacturer) stated that this is not a common problem.
Good luck
Rod