Speakers that are matched well with Krell

I have always been told (but never myself heard) that the the classic combo woth Krell is Apogee speakers and MIT cables. I can't really recall anyother group of manufactureres who are spoken togtehr as often as these three. Perhaps Bryston and Maggies but thats another thread discussion...
Best of luck I'm sure they sound quite nice with the Sonus Faber's
Also look at Dynaudio speakers and Cardas cables

At one time I had B&W801 MatrixIII's with a a Krell KRC-HR and Krell KSA-250 and then the FPB-300. Krell is one of the few amps that can control the 12inch woofer on the 801's. The sound was excellent. I now have the 650MC mono's, KPS-25sc running into the Wilson MAXX and love it even more because of the Wilson's dynamics top to bottom, more engaging detail and to my ears more musical than the older B&Ws. Can't comment on the Nautilus. By the way, Transparent and Krell work well together also.

For Krell & Nautilus, what speaker cable in between?

You might listen to the Krell speakers?

I've paired my KAV 300i with 3 models of Sonus Faber and have been well pleased with all. The only difference was how many strands of OCOS speaker wire worked the best. I am using the Concerto Home currently and am enjoying a particularly nice soundstage.