Preamp matching for Krell FPB amplifier

Krell is a lot better in designing poweramps than preamps. I'm just auditioning preamps with the FPB 600C, I prefer a preamp which keeps it's possible aggressiveness under control. I like the Pass X2.5, all natural sound colors and textures can be heard (btw. a lot better with the 600C than with the Pass X250). I also like the new Nagra PL-L, it has a nice and subtle tube sound and also keeps the highs under control, however the Pass lets me hear more good things of the original recording (the Nagra is not broken-in yet, so it might improve).

Have an option of getting a mint 2nd hand KRC for the same price as KAV 280p to go with a non-cast FPB.

Which do you think is a better option? The KRC used to be their top of the line preamp and the KAV is the current entry level - would technology have improved so much to make a previous top of the line preamp inferior to a present entry level one?

I use my system as Video & Audio and the Theta Casablanc II matches with my Krell 650M's perfecly. Very, Very, Detail, Open Soundstage, Excellent Mid and thunderous Lows.

Hi,

I would suggest one of the excellent tube preamps from Consonance by OperaAudio or Power modules. You will have the best of all worlds!

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