Old Krell vs new Krell amps...


Hello,
I actually have to choose between differents Krell amps, for roughly the same price :
a pair of Krell Audio Standard (KAS)
a Krell Evo 302
and for half the price a pair of KAS-2 amps

How do they compare, in terms of sound ?
The KAS is a legend, but is it actually still a good choice ? Its fiability is good ? The KAS is really better than the KAS-2 ?
And, what about the new Evo amps ? Are they better than the KAS or the FPB amps ?
My speakers are easy to drive : Tannoy GRF, but I may swap to big TAD or JBL...
I can't compare those amps directly because they are sold in different(and very far from each others) shops.
Thanks a lot for all informations and advices.
Best Regards,
nico_g
I think it's more a matter of taste. I've been told by Krell employees the FPB series is better than the KAS amps. I haven't listened to the Evos.
IMO, the older Krell KAS-2 mono amps are not Krell's best sounding amps, not by a long shot. Krell made a major step forward with the FPB series of amps. Therefore, if the newer Evo amps are at least as good as the FPB amps, then I would definitely opt for the Evo series.
I've upgraded to a pair of Krell Evo 600 from a Krell 700cx, and I love the new Evo series. The Evo series is more of everything: transparency, imaging, dynamic but the thing I've noticed the most was that the Evo series is very smooth which makes the older cx series grainy sounding. However, if you haven't heard the Evo line then the cx series would sound perfectly fine too.
So go for the latest series if you could is my opinion.