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.


John Cotner

New Ulm, MN   


Thanks for the advice.  The tubes get replaced regularly.  I'll look into the caps and opamps.

@armstrod just replaced my JD-9 Burr-Brown 637 OPA’s with a set of 6 Burson Single V5i’s.  Definite all around improvement. Well worth the $115 at Parts Connexion.  Appreciate the suggestion in the thread.