Pre and Amp suggestions for B&W Nautilus 804?


Does anybody have good info on the ideal preamp/amp combination for the B&W Nautilus speakers?
I had the 805s and now I have the 804s.
I have been using Classe Audio pieces.
I went from the CAP-80 to the CAP-151 to the CP-35 and the CA-101 combo.
I am looking for matching preamp/amp combos, solid state, with a warm character.
The ones that have gotten my attention are upgraded Classe, Pass Labs, Sim/Moon Audio, and Balanced Audio Technology.
Any imput?
Please have or have owned B&W Nautilus speakers.
Thanks,
John
jl2
I second (third) the Krell suggestions. I added the new Krell integrated to my system and got a huge improvement. I have the CDM9's, which, to my ears are similar, but maybe not quite as nice, as your speakers. The Krell improved the sound in my system significantly. The B&W's loved the added power from this amp. Check it out.
I'm using the new Krell 400xi to power my Nautilus 804s with excellent results. This 400wpc (into 4 ohms>N804 operating load) Integrated Amplifier seems to have plenty of high current/clean power for these speakers. I'm also using the new Krell SACD Standard. An excellent sounding system for $10,000- I haven't heard a better combination at this price.
JI2,

I have basically the same setup as the Krell man. I have the Nautilus 803 though. Sweet system. I found the digital cable in my system made all the difference. It would help if you would post your system so we can see what you have. Its possible that a new front end or a cable change is all you need.
JI2,
I have 804s and have been looking at pre-amp / amp combos to go with my naim cd5 and 804s. In my search, I have spent a good deal of time at Innovative Audio in NYC. The Nautilus line was introduced to the media at their Manhattan location. Only 801 - 803s were introduced to the media at that time and the 803s were paired with Naim gear. Although they weren't developed with Naim gear, the engineers and Innov Audio's staff found that the combination has a "magical" sound. I have listened to the 804s with Naim and think it has a wonderful sound. I think the sales person (who was also the individual who helped set-up the Naim / 803 room) mentioned that the Nautilus line was developed using Linn and Krell gear.