Recapping Krell FPB-Monoblocks - Need Advice


I have a flawless pair of original Krell FPB-350m’s I purchased from the original owner several years ago local to me. I am kind of on the fence as what to do, They definitely need a recap as one of them is heating up now and shuts off after 25-30 minutes. I’m debating recapping with upgrades or selling them as is and trying out Parasound JC-1’s or a Pass Labs X250.8. If I do recap them is there anyone in the western United States that can work on them? Krell is back east and wants $1300 per amp and I would have to pay shipping across the country. That would cost me around 3k. That seems quite high for a recap. Is there a dramatic difference sound wise when having these old amps rebuilt with modern caps?  If I do sell them as is what could I roughly expect to get out of them. I am clueless As to what they are worth? My system consist of Egglestonworks Andra II speakers and a AYRE K-1XE preamp. Any advice would be appreciated.
128x128boisehomes

Showing 4 responses by georgehifi

i just read your link again on the recap and I think it’s 5 hours per mono block.
That's for both as he states "the entire process".
 "The entire process takes approximately five hours from start to finish."
  Also there no need to do the film or poly caps just the power supply electrolytic and any Jamison electro's that will also save time. Just find a good local audio tech in your area. 

Cheers George
boisehomes OP

Your changing caps, it's not rocket science, even someone with "basic electronic" skills could do it, don't listen to those who try to make it sound like some kind of "sacred ritual" that only Krell should do, and who would probably give to their apprentices to do anyway.
You have the link on how it's done, just show it to a good local tech that's not going to rip you off on labor costs.

Krell-$500 an hour!!!!! now that's a ripoff! it'll end up being at least 4hrs + parts for both amps, I could see $3k bill from Krell, the amps aren't worth that kind of investment, plus your original purchase price, ho! I and forgot about shipping both ways! add another $K.  

Cheers George
That would mean Krell is charging me over $500 an hour
Yep, they know how to charge, they're not shy.
It’s around 2hr per amp, the link says 5hrs for both that’s probably with smoko ect
We charge in Au around $100au per hr that around $75usd
Just take them and the link to a good audio tech and ask for a quote, and you get the caps, it’ll end up cheaper as they always put a mark up on the parts

Cheers George



Recapping Krell FPB-Monoblocks - Need Advice

I have a flawless pair of original Krell FPB-350m


Magnificent amps, just have to read JA’s bench test on them.
https://www.stereophile.com/content/krell-full-power-balanced-350mc-monoblock-amplifier-measurements

I would just re-cap the Krells, use the equivalent size or even higher uf Nichincon 105c temp caps. Will be the same just as good or better than the Krell badged ones and cost less.

They use Nichicons 80c in it so go higher spec 105c http://pages.cs.wisc.edu/~timc/e/krell-cap/index.html
Put Nichicons 105c in place of the Jamicons, they’re not very good, can’t believe they used them.

It says $160 for the caps, I'd say more like $250 and a couple hours labour, they look easy to work on.
 
Cheers George