Anyone knows the Classe CA-401?

I owned the CA-400 for a few years which drove Martin Logan Quest speakers. Nice amp, I really liked it a lot; a real brute, never ran out of steam, very controlled bass. Although not a tube sound, I thought the midrange and top were quite good. Very well made. Not sure what the difference in the 401 is.

No one else listened this Classe CA-401?

A friend had the 401's and I had the 201's. Both of us used them on Magnepan 3.6's. We like both Classe's very much - tons of power, detailed, smooth, very well built, fine value for the money. But, good as they were, they were significantly exceeded in all respects by Pass Labs amps, as Gundam91 said above, and I agree with him totally. My friend got the Pass 250.5, I got the 150.5. The sound improved substantially v. the Classe's. Sorry to tell you that if you're really thinking of the Classe 401. BTW, the Pass amps are VERY conservatively rated in watt output. My friends 250.5 (250 wpc@8 ohms) just about equalled the Classe's 400 wpc. My 150.5 (150wpc) easily equalled the Classe 201's 200 wpc.