I heard the cat stereo partnered with the cat Ultimate, driving Avanti IIIs (N'ost Valhalla cabling). Pls note the audition took place at a dealer and only lasted a few hours. Good sound. I missed the superlatives, though. This doesn't mean the amp's no good -- just that *I* missed some bass / cellos resolution. Sorry, I can't compare with the other machines: I love the Jadis & don't know the others well enough.
Regards!
Regards!