B&W 803N/ any comments?

Perfectly for jazz or classical.Much better than the 804N.

the 803's are a very different sound than the pcs. Warmer midrange, and more dynamic and also less precise. You probably couldn't have a different set of sounds. Having said that, the Krell would probably fit better with the B&W than the Thiels. There is not much chance that you will not like the 803's. good luck.

See other threads re my comments re 803N and its failings particularly in the nearfield. I strongly preferred Revel F30 at 2/3 the price. But tastes and rooms sho do vary!