Classe or Krell

Personally I like Classe, Krell changes models so often it's hard to keep up. I did compare Classe to Krell, I believe KSA series and thought Classe was better in about every department, even bottom end. Classe CA series delivers a more natural sound IMO than Krell and I've heard the FPB amps at dealers - they are better I think than the series I demoed but still have a slightly bright top end. I think Classe makes great amps - better than their current preamps and better than their digital endeavers. Hey, it's a tough choice and personal preference certainly plays a huge part - hope my opinion helps - good luck.

I only have experience with the Krell FPB600c driving Nautilus 801's so I will offer that most people do not have a clue as to the signature of the Krell amplifier. I have noticed them to be very sensitive to vibration and requires either air suspension like a Vibraplane(expensive) or the new Aurios bearings reviewed on stereotimes.com(inexpensive by comparison). I personally isolate the 600c with a vibraplane and I also put a 30amp line and a 14ft. King Cobra on the amp. The sound with those two mods changed the unit radically "across the board" and for the better. I am consistently wowed at the improvements that vibration and proper a/c power delivery affect the sound of components. The N802's will demonstrate these effects very effectively and expose the lesser of set-ups! Spiking them is critcal and they should be obtained from your dealer if you don't have them already. I have not tried the Aurios bearings yet but I will be getting several sets in a few weeks to see how they do against the vibraplanes. I will also be trying them underneath the 801's instead of spiking. I currently use 3 vibraplanes in the system and Kind Cobras on all components. Every once in a while you can purchase a lightly used FPB600c for $9,000-$10,000 and it is sonically superior at all sorts of low level musically relevant information as compared to the 300c and it packs a much higher dynamic impact factor. I have experimented extensively in getting the most performance from my B&W N801's. If you are interested send me an e-mail.

Pops comment about model changes is actually a good thing. You can buy last year's models for 60% of new. The CAST technology has replaced a line (all the FPB without the C) line. I prefer the Krell over the Classe. Classe always sounds too soft to my ears and less dynamic. Some say Krell is to harsh but that went away on my system with good Alpha Core flat cables (Devinity).

I have owned both classe and krell, classe tech support is terrible and I think their quality has been slipping for quit awhile, krell quality and tech support are the far above that of classe, the new classe ssp 75 was virtually a clone of a parasound when I auditioned it and the ca series amps are not as good as they used to be. as I said , I have OWNED both, good luck

Tony, How where you able to modify the 600c to accept the King Cobra ? Who does that kind of work? Does this void the manufacturer's warranty? Isolation improved your amp in what areas? Is DH cones any good?