Any merits of getting a Krell FPB 200 C with my existing KRC

I can only comment on the 300's and not the 200's.
I own both the KSA300's and the FPB300. I use them in a biamped configuration with the PFB on top. I have compared them not in the bi-amped situation, and the FPB blows away the KSA. My preamp was the Krell KBL. Go for the upgrade (but maybe with a non "C" version to save money).

I agree with Drrdiamond; I have compared an older KSA to the FPB300 (which I bought). I prefer the FPB. You also get a very sophisticated set of microprocessors that do surge protection, short-circut protection, and will shut the amp down if it overheats (it must have to be on fire for that to happen!). I also have a FPB250Mc for my center channel. I think from an ergonomic aspect, I would prefer a set of the monoblocks rather than the 110 lb. stereo amp. I haven't really compared sound between the two so I won't comment. As Drrdiamond said, if you aren't going to use the cast technology, you might as well save the money and buy the non-cast, older version. I would bet you could get a pair of 250Mc's for $6000 or pick up a FPB300 for $4000. The $2000 might be better used else where in your system but that's your call.

Good luck!

Gregg

Two very good points made above. I would say go for the cast version. This is your hobby and you just like me and every other nut out there is always going to upgrade. So I say get the best you can get for the money and build your upgrades around that. Yes there is a diffrence between the ksas and the fpbs the fpbs sound much much better. I had a ksa 150 which was a nice amp. Then I had a Levinson 331 Another nice amp Then I went to a Levinson 335 one of the best amps I have ever heard Now I have a Krell Fpb 200c and that is one of the best amps I have ever heard. Not as layered as the levinson but it sounds great. The Levinson had more space between musicians than the krell but the krell brings the music in your home.
Associated gear:
Krell Fpb 200c
Mark Levinson 39 cd player
Martin Logan Ascents
Harmonic tech. cables

Good Luck Email me if I can be of help

I owned the FPB300 amp and it was superior to my older KSA250. I next purchased the FPB600 and it blew away the 300. I spoke with Steven at Krell about updating the 600 to the CAST and he mentioned the CAST has different audio boards that can improve sound without using CAST interconnects, but really improves the sound when used with CAST cabling. Well, I upgraded the 600 and it did indeed sound a little better, but not substantially. I had a good year last year before the market tanked and I dumped the 600 and bought some 650MC's off this site and a demo KPS-25SC playback system. I found some CAST cable interconnects by Transparent for around $300 and I must say, Dan is on to something. The speed, transient attack, dynamics etc. were excellent. I had been using Transparent Reference balance interconnects, but the CAST really gave them a run for their money. The Transparent was better in bass detail than the CAST on my Wilson 5.1's. The CAST was superior in midrange clarity and detail on my setup. I hope it helps. I agree with the others about buying used on this site. You may save some money. By the way, I had a KRC-HR before the KPS-25sc and it's still a fantastic pre.