Check out the new Krell Duo 300 XD. This is a pure Class A design that will blow you away in terms of its musicality, sound stage, deep bass and sheer presence. I have had the Krell 400 cx and couldn’t believe a unit that consumed so little power relatively to the old “muscle cars could sound so good. This unit sounds BETTER. I also have the Chorus 5200 for surround sound. They share the same topology.