The McCormack brand was sold by Steve to Conrad-Johnson long ago. Steve has continued to build and rebuild his own gear including upgrades to his amps (DNA-1, 0.5 etc) under the name SMc Audio (https://smcaudio.com/
) and he builds a world class preamp, I'm told.
My DNA-1 died after 20 years of continuous use, and I made the mistake of selling him the amp housing instead of getting him to rebuild it 3 years ago. Now, he's building a new amp in existing DNA cases using his "Gravity Base" system, which he says is the best amp he's ever built. I'm looking for a dead DNA to buy so I can get one. His amps match very well with Vandersteen speakers, btw.