2. amps-preamps
  3. 1297052009

Conrad Johnson PV-10A mod experiences?

Has anyone had experience performing a mod on the CJ PV-10A? I'm fond of this preamp, it has that wonderful tube openness and sweetness for harmonics. However over the past 6 months as I've delved into PC audio and DAC improvements, I've come to realize two things about it

1) its slow on transients
2) its dynamically compressed.

I'm using Mullard NOS tubes throughout as these seem wonderfully detailed with excellent base.

Since the preamp is built like an engineering prototype (overbuilt)my gut hunch is that some caps have aged (circa 1993)and need replacement, specifically the white CJ caps
and am thinking about replacing them first with Multicaps.

Wondering if anyone has experience trying to revitalize a PV 10A?
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Showing 1 response by hifiman5

hifiman5's avatar
hifiman5
1,823 posts
 
I had my PV-12L extensively modified by RHB Dezigns located in Churchville, PA. Proprietor, Bob Backert designs his own proprietary circuits for the gear he modifies. He loves to work on cj gear! You can talk to him, discuss your sonic goals for your cj and he'll be able to tell you what he can do to get you there.

If you check other threads that discuss Bob's work you will find nothing but accolades! He is the real deal and a true gentleman to boot.

If modifications are in your future please consider giving Bob a call.
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