I have WATT Puppy6's with a Krell FPB400CX stereo amp and i think it is one of the most glorious systems ive heard in quite a while. I like the Levinson amps, I own a 3 series front end as well, but the amps tend to be anemic on the bass side of things. A little more money but well worth it. Also, Krell tends to offer an upgrade path with their amps