Which Pre-amp. match with Krell KSA 200S Pow. Amp?

Check the output impedance if going with a tube preamp. IE: I found McIntosh C2200 a poor match for my FPB600. No bass, dynamics ... just flat and boring.

BAT pre's work well also.

IMHO, the KSA-Xs series was anything but bright. If anything, these amps shaded very slightly darkish to my ear. I owned a KSA 50s and auditioned the bigger models extensively, and I might have sensed very slightly closed, diminished treble. It's true that these tended amps also toward powerful deep bass and that they could be a little lean thru the mid-bass. The net impression for me was slightly "thin" or "analytical", but overall pretty darn neutral and definitely not bright.

So, for a matching pre:

I'd agree that the balanced output is a good idea and also agree that tubes work well. I used a SF Line 3 with real success and ARC LS-25 (leaner sounding, itself) somewhat less successfully. I also used a Audible Illusions Modulus 3 (single ended) and I liked that match a lot - even it wasn't as quiet as the balanced preamps.

Bottom line: a characteristically "tubey" sounding pre might be a good idea and a balanced out would help, too. Based on my experience with their Rhea phono stage, I suspect that the Aesthetix Janus or Calypso linestage might be a good call. However, I haven't directly heard the pairing, so this is speculation on my part.

Good Luck,

Marty

The Quicksilver full function preamp has an extremely low output impedance and seems to work well with just about any amp. If you want a tube preamp the Quicksilver is a pretty safe bet.

Hello to my mind, and I have extensive experience in brand Krell, you would have to get a KRC HR, or KRC, with respect to the Krell have a hard sound, I tell you any experience with them
They are absolutely had filed IC cables and powercord very high level, with them will get a sound very musical and dynamic, more like valves but with the extention of the solid state,
Regards Adrian

Regards Adrian