Thanks for the info. I visited the Audiokarma page and found plenty of info on upgrading the unit, but unable to find anything on doing it a second time due to age. I'm reluctant to contact PCX since they are in the business of selling parts and may be biased.
Jolida JD-9 Upgrade
I've had my Jolida JD-9 phono stage for over 20 years, and it's been even longer since it had its Level 3 upgrade done by PCX. Is there a time when it needs the opamps, caps, etc., replaced short of failure? Nothing lasts forever, and I haven't noticed any change in performance. If it needs it again I'm going the DIY route.
Thanks,
John Cotner
New Ulm, MN