Thoughts on Krell FPB series? 600 in particular.


Or the 300 as well.
Will be using it to power a pair of Thiel 3.6s and Maggie 2.7QR some of the time. Currently have a Classe CA-200. I'm looking for more slam and I'm thinking the extra power will result in a less constricted soundstage (more open). Is my thinking right?

How about the CX series? 300CX or 400CX

Associated equipment: Wadia 850, ARC LS-2B, Cardas and PAD cables.
jcatral14
Jwm and others here,

I have the Krell FPB-250 Mono's as well and just recently purchased Art's Audible Illusions Modulus 3B tube preamp. I know there have been discussions on the 'gon about having to put jumpers in the Krells when using tubes to avoid harming them.

But the feedback has been unclear, Krell says you should do it while others say not to worry.

Any thoughts/guidance?

Thanks,

Gary
You should put the jumpers in when using single ended or unbalanced connectors. It doesn't matter using tubes or not. Jumpers are not used with balanced which makes sense.
Thanks JWM. And you didn't experience any degradation in SQ, per the above comments?
No not at all. Your other alternative would be to use a Balanced to RCA adapter, but then you have an adapter.
I had a FPB 600 for years and compare to latest SS, it's a bit grainy and dark but still a terrific amp. The only reason I sold it is to try something different. It sounds great with everything include 100 db Avantgardes. You can hear and feel stability of the sound.

When I play the track The Four Seasons, never achieve the level of dynamic swings since the Krell shivering my whole body. I'm in the camp never too much power and dynamics is what make music fun for me.

FWIW, I found network cables such as MIT worked best with all my Krell amps. I only use tube preamps with them and XLR offers the best SQ.