krell ksa-250- vs ksa-200s vs fpb-200

Older Krell amps are not cheap to repair or recap. A tech friend has be given a couple by owners who didn't want to spend the money on them; so far he hasn't either. HIFICRITIC has teated a number of them, here is their rating; see their web site for info on their rating scale.

Krell Evolution 402 75
Krell Evolution 402 late series (2008) 120
Krell FPB 650m 55
Krell FPB300 (original) 33
Krell FPB300 Mk2 39
Krell FPB 400 65
Krell FPB700cx 100
Krell KMA 100 II 14
Krell KSA 100s 21
Krell KSA 80 17.5
Krell MDA 300 23
Krell KSA200s 19.5
Krell KST power 19.5
Krell KAS-2 30
Krell Evolution One 130
Krell FPB600 45
Krell KSA150B 20
Krell KSA 50 9.7
Krell KMA 160 21
Krell FPB 400cx 75
Krell KAS 2 31

I was one of the original Krell dealers and had KSA 50s, KSA 100s and KMA 100s. They were great amps in their day but that day has passed. Current top A/B amps sound great and can be left on 24/7; I do that with my CJ 350. If I wanted power and bass with a more refined top than the mentioned Krells in that price range I would get one of the big Musical Fidelity integrated amps. They weigh about 100 lbs with separate power supplies and have 350-550 watts depending on model. My NuVista M3, the smallest one, blew away a Mac 402 with matching pre so badly that the owner sold it the next week; this driving Wilson Sasha, which are a difficult load.