I've been auditioning my recently acquired vintage Conrad Johnson PV-5 tube preamp versus my recently acquired vintage Conrad Johnson PV-7 tube preamp and have decided I prefer the sound of the PV-5 by a slight margin.
I think the sound of the PV-5 is a bit warmer in the middle, and slightly more detailed at the high end of the spectrum. The PV-7 is sweet too, and the bass register seems to be better controlled, but overall the PV-5 wins.
I've heard a cap/power section rebuild will move the PV-5 to near world-class status.
Where should I send it? Ed Deitemeier at Conrad-Johnson Design and Bill Thalmann at Music Technology are my two top picks so far.
Are there other options?