Marshall Blonstein formed DCC which is now defunct. He currently owns Audio Fidelity which also reissues Cd's and Vinyl. Steve Hoffman is a mastering engineer who Marshall used for DCC and currently Audio Fidelity.
Classic Records is owned by Mike Hobson and Steve Hoffman has not mastered for them. I believe he uses Chris Bellman.
Classic Records is owned by Mike Hobson and Steve Hoffman has not mastered for them. I believe he uses Chris Bellman.