Almost all vinyl reissues today come from digital sources. Ironically, since many Ampex master tapes degraded over the years, and since many original masters can’t be found, there are a lot of cds that are mastered from old vinyl sources. To further the irony, the original LPs in this series would have come from 78rpm records, pressed onto 33 1/3 LPs, which arguably is “pure analog”, but somehow I doubt sounds better than modern digital remastering that removes a lot of surface noise.
