Conrad Johnson PV10A Mods/upgrades

I haven't had any work done by Bill Thalmann, so I cannot speak for his work. I have had Bob Backert work on a BAT VK-75SE amp and the results were stunning to say the least. I would highly recommend his work.

i wonder what Bob Backert would do on a GAT?

Lloydelee21,
I would hope that at $20k, there isn't anything that could or should be done to the GAT. :)

Joethekid72,
Years ago I had Bill Thalmann convert my PV-10AL to a 10A by adding the phonostage to the unit. He also upgraded the capacitors and RCA connections and it sounded much better at the frequency extremes and had better clarity as a result.

In communicating with Bill at the time, he said that he knew just where c-j had compromised the design in order to come in at its price point and therefore, where the most cost effective modifications should be made.

Lloydelee’s third alternative should be seriously considered if resale value is of concern. Even though Bill Thalmann and Bob Backert are both accomplished technicians whose cj mods are well reviewed, the amp can only be considered a pure cj if cj does the work. That, IMO, should add to resale value. In my conversations with Bill and Bob, I came away with the impression that Bob’s mods were somewhat more invasive - not to say that the result isn’t stunning.

At this point, I would suggest that you develop a very precise set of objectives, and without initially disclosing those objectives, determine through your interviews which guy most shares your values - if he hears like you hear, he will do a better job.

Thank you so much everyone! I think I'm leaning towards Bill Thalmann.. I like that fact that he was an employee at CJ and that that will probably be ok if I ever sell either unit..
I'm excited to hear the difference!