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Tube Rolling 12AX7 - Need Advice/Suggestions

Have a Jolida SJ-502A Tube Integrated who's tube compliment is currently (4) Tung-sol 6550, (2) Tung-sol 12AX7 and (2) NOS RCA 12AT7.

Recently purchased a Jolida JD-100 CDP which currently is using (2) NOS RCA 12AX7. The person I bought the CDP from kindly (thanks Colleen) gave me a stash of some 12AX7 tubes which include pairs of EI Elites 12AX7E ,Gold Series Groove Tubes 12AX7-M, and EH 12AX7.

Right now, the Tung-sol in the amp, and the NOS RCA in the CDP sound good, but wondering what other 12AX7 combinations might sound as good or maybe even better? Anyway, was curious about what some of you more experienced "tube rollers" might think would be the best combination of 12AX7 to be running in the CDP and AMP?

All comment appreciated.
cleaneduphippy

Showing 1 response by deaf_j

deaf_j
23 posts
 
I have the 502B and 100 myself.
I have tried various current production tubes.
I have tried EH, EI, Groove Tubes and the Sovtek LPS (and a couple others).
I settled on the Sovteks before hearing the Groove tubes,
then switched to the Groove tubes but after a couple months went back to the Sovteks in both units.
Both are good but the Sovteks are more musical to me.
I have not tried any NOS.
FWIW, I like the Genalex Gold Lion KT-88 reissues the best for the power tubes.
Enjoy,,,,
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