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Precision Fidelity C7/A: To modify or leave as is?

Hello:

We recently invested in a Precision Fidelity C7/A and I was thinking of upgrading some of the OEM capacitors. The original designer -- Bruce Moore -- apparently built the preamp. to sound as good as could be in stock configuration without having to modify anything, i.e. evincing the philosophy that an intelligent design should be simple and sound excellent as is.

Has anyone upgraded their Precision Fidelity with caps. such as V-Cap teflons or Auricaps and come away with dramatic differences in sonics, either for the better or worse?

Thank you.
somut

Showing 1 response by lacee

lacee
811 posts
 
As I recall, your unit is a couple of decades old.
I had a Precision Fidelity, but a lesser model and it was a very decent sounding unit.
Simple design,dual volume or balance knobs and I think a couple of tubes, but a big open sound.
I should have kept it.
If I would have, considering it's age, I would at least have all the caps and resistors checked out and replace the ones that need to be replaced with better ones.
I would also try to find out where in the circuit that a cap upgrade would yield the best results.
This is where a good tech is invaluable if you can't do it yourself.
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