Krell primer?


I was hoping some folks could give me a primer on Krell amps. I’m in perpetual upgrade planning mode and have seen a number of Krell amps coming through A-Gon. I thought I’d ask for opinions. It seems that the FPB and KSA lines, which I gather are at least ten years old, are relatively reasonable in price and seem well respected. Can anyone comment on their sound? How much heat do they throw? Are there any ongoing maintenance issues with the older amps? I understand Krell still services their older gear, much the way McIntosh does.

Any comments would be useful. Thanks!
grimace
The KCT with a FPB300 or higher and the right associated equipment would be wonderful.
I've had the KCT/FPB400cx combination since early 2003 and I have no desire to upgrade these components, though at times I must admit I've wondered how much more of everything I would get with a 700cx. These components have improved sonically through the years and have worked perfectly for well over 6 years now. I would go with the FPB cx series of amps if I were looking. Also my experience is that they don't get too hot when running at nominal levels; at 80-85db from my speakers (Thiel CS6) I can still hold my hand on top of the amp.
i have the fpb600c and have since new around 2003. it has always functioned perfectly and really sounds better now than ever. rayoo's description is pretty dead on. fast, clear, powerful, dynamic and did i mention the bass? you will never want for more bass impact...ever. kick drums feel like body blows. i like em. i will say equipment matching is important with krell as cables are. i sort of tame mine with cable choice.

i do not find the heat to be excessive but they will significantly raise your power bill. seriously.

it should be mentioned that they are very large and very heavy. the build is outstanding all be it somewhat over built. i store canned food in mine in case of nuclear attack, i plan to pop off the top and drag me an my dog in for shelter. i do feel bad for my wife but really not enough room...
Richard stacy is utilizing his Krell to the fullest it seems...well done sir, well done!
Thanks for all the great information. Can anyone tell me what pre-amps they're using with their FPBs? Anyone using a tube pre? I want to build detail, but not brightness or harshness. For that matter, what cables?

Thanks!