Is it worth it to repair a cj pv2ar?

Your estimate sounds high to me. Was that from CJ?

Stanwal may be right. But then again, if you like the sound you have, why change. What if you buy a newer model and don't like it, or it breaks down?

For instance, I have a 1970 BMW. I liked it when I bought it, and I still like it 39 years later. No plans to sell it ever.

10 years ago? Wow, I guess the 'gon has been around for awhile.
There are better sounding C-J preamps for sure. But the current ones have a little more leaned out accurate sound than the vintage models. That said, a PV5 or 7 would be good step up vintage units. The 10 is a more current item and may lack the full bodied midrange that the PV2 has.
If you decide to sell it as is, you might be surprised at how much you might get for it.
It served you well for 10 years, that's $20 a year for bliss. Not too bad!!
Personally, I think any of the earlier models would go fine with your MV55.
Cheers!!

I agree with Rhljazz that the estimate sounds high . I would think the whole Preamp could be gutted and totally Re-Built for that amount . When you say it " needs new power supply " does this mean every part including Transformer ? Or does it mean power supply Caps and Diodes ? From your brief description I would think the work could be done for $200.00 or less . It would be well worth the $200 or so to fix it , $520 not worth it .

Oops! I forgot to mention that you might want to contact Bill Thalman at musictechnology.com. He is the previous tech director for C-J, and does repair & upgrade on the various C-J products. He's quite reasonable as far as cost goes. I agree with the various comments about the price being high. However if that cost included the latest "boutique" parts (teflon caps, etc) it might be about right.

I suggest that you shop for repair. I don't know who gave you the estimate but if it's the local audio repair guy, I would almost anticipate getting clipped. Let us know where you're located and maybe a member can recommend someone dependable.