I think it's a matter of personal taste. I own a Threshold T400, I have owned it for over a year with no problems. I bought it from a friend after lusting after it in his system for a year or so ( he left 2 channel for HT, go figure). I've auditioned the McCormack DNA 225 as well as the DNA 1 w/ Rev. A and they are fantastic amps, both of them. I wouldn't say they make me want to sell my T400 though. That being said, if I were in your shoes, I'd probably go after the McCormack, because the T series amps are not easy to repair, if you can get them repaired at all. They were built using IGBT's transistors, which are obsolete. So if one of them goes, you'll have to have Vintage Amps revamp the entire amp ($$$$). It's a shame, the T series amps are as sweet sounding solid state amps as I've heard. I'm holding onto mine, and keep my fingers crossed. It does run hot, and I leave it on 24/7, but I make sure it has plenty of ventilation. This should help extend it's lifespan. My friend bought it new in 1999, so I would hope to get at least another 10 years out of it.
Regards,
John
Regards,
John