LLOYDELEE: I gave up on these because there was virtually no market information about them. Conrad Johnson's person said he thought they were inferior to the Premier 350 unless you did the cap upgrade. I purchased Marantz Reference monoblocs instead and am quite happy with them. I strongly considered Cary 500MB amps (about $3000 used) and Classe CAM400s (about $5800 used) before settling on the Marantz.
McCormack DNA-750
I have noticed that recently some pairs of these mono amps with 650 watts/channel/8 ohms have come up for sale. I had not heard of these before but they seem like a good value product at the prices listed. I also understand that these amps were designed by the Conrad Johnson folks, not Steve McCormack. Has anyone heard these? I have liked the C-J Premier 350 in the past and wonder if the DNAs are similar. Any information or experience you have with these would be appreciated. I am looking for a high power amp with a bit of a warm sound. I am considering a BAT 600se and a Premier 350 as well.