ARC sp9,Krell ksa250,Infinity Kappa8. Problems?

The Ksa250 is a very high current amp that is Kind of on the reserved side in midrange/highend dynmaics. A Sp-9 I think would be a very intresting combo with the ksa250. I think that would be a wise choice.
If you scape togther some more $$ Youd want to concider the KSA300S, Much more balanced then the 250 and has more power, a lot more power.Ive owned 7 krells The Ksa300s is a winner. the newer designs would be too BRITE sounding for the kappas.Another intesting choice would be VTL Deluxe300's, tube units Has the krell lowend and a laid back quailty that you will get used to real quick not to mention Enough power to kill the ksa250.

Thanks, The VTL sounds interesting. I found an SP-9 Mk3 on Audiogon. Local seller...bonus! Needless to say I snapped it up. Thanks Patrick. I appreciate the dynamics that the preamp has given me but still find the system a bit bright,even playing mostly vinyl. I have my heart set on a KSA-250. Should I expect the Krell to help with brightness? Are there any known impedance mismatch issues I should be aware of? I do appreciate your help,and it is great to be moving forward with this project.

Hello! gedman3@earthlink.net: I was wondering if you help me: I have an audio research sp-9mklll preamp. when playing in stereo mode only left speaker works:When switching mode to left channel both speakers operate: When switching to right channel neither speaker works!Any THOUGHTS! Thanks! Horseshoe 6391zre@optonline.net

i own a krell ksa250 and electrocompaneit ec4.7 and sim audio moon cd player drive my martin logan sl3 speaker it give me a very good combo and sweet sounding if combind all of these set it cost more than $15000 but my other set sound better than these krell set and cost a lot less i mean a lot less and sound wonderful lot of head room and clearity...

I am new to this forum, I have owned 8 Kappa`s for 20 years.
Many $ spent, went on amps for these speakers.I cannot however
speak of Krell, or AR. They were ( Carver TFM25, bi amped with Adcom GFA 555, Pre amp then was a Carver CT7) in all possible configurations. Then I made a complete trade For NAD Stuff. The best Preamp NAD made in 1992, I cannot remember the model#. Paired with 1 SINGLE Amp, The NAD 2200PE. It sounded much more Dynamic, and robust than the 2 amps previously mentioned. The salesman were I got this NAD stuff, made me promise to listen to this for 2 weeks, before he would sell me another 2200PE. With 2 2200PE amps I was actually Driving my Kappa`s with some authority.
Then I stepped into the TUBE Stuff.I Bought Cary Audio.
(2) CAD 40m Mono blocks, with an SLP 90 TUBE Preamp.Only 40 watts per side,but MASSIVE TRANSFORMERS. I could Drive them,
with the same, if not more authority, but the Beauty of the timbers, and ringing of guitar strings on this invisible soundstage took on a new and totally impressive (GOOSE BUMPS)sound. I Paid around $3600 for the 3 Cary pieces. This set-up was by FAR the Best My KAPPA`S ever sounded. And I am a very critical listener. I Guess, I am suggesting that you try some TUBE stuff, before your purchase.I am not condeming solid state equipment, but an A vs B comparison is not valid in high end audio. I had Great salesmen back in the mid 90s, that let me listen for a couple weeks, before any transaction was made. Just my 2 cents.