Are audiophile R2R tapes worth the money if you do not have a professional R2R deck?
I gave myself a vintage Technics RS-1520 R2R tape deck for Christmas (more or less 50 years old, but apparently still in very good shape). I had found a couple of old tapes from the 1950s in my attic, and thought this would be a nice sentimental journey. Then I read about sites that sell master tape copies, on 2 track format and 15 ips speed for $400-and-up. Before I fall into a new rabbit hole, I would like to ask this illustrious forum about their own experience with high-end R2R recordings on their own semi-professional decks, preferably in direct comparison with the corresponding vinyl.
On a tangent: I plan to "hot-rod" the old machine, going directly from the replay head into my own preamp (Supratek Grange) instead of using the internal preamp of the RS-1520. Any experience with such a mod?