I would definitely go with the Levinson gear. I have given Krell an honest shot several times, as recent as last weekend. I have to admit, it SUCKS! It is very forward, in your face, brash and harsh. I know the associated equipment may have had something to do with it (thiel speakers which are also overpriced and overrated junk), but maybe because it was ALL Krell!!! Although it is very detailed, the presentation is obnoxious, and the equipment is 60% overpriced! The levinson gear is just as detailed, less in your face, throws a wider soundstage, images much better, controls deep base better, and is non-fatigueing.
Krell versus Levinson experience
As posted some time ago, its is difficult to get to have A-B comparisons between amplifiers in Europe, because dealers don´t like to provide home loans. I managed however to spend a whole morning comparing a Krell 200 FPBc, which was my initial first choice and a Levinson 335. Speakers were Martin Logan Prodigy, the front end was a Krell KAV 300CD(non cast) and cable was Transparent. I was astonished as how large the difference bteween the two was. The Levisnon sounded (i) much more controlled in the low and mid bass, (ii) similar in resolution but with a much more relaxed delivery , (iii) with wider soundstage. It may have been the Martin Logans and interconnects, but I had always thought that Krell FPBs matched Martin Logans quite nicely. Just tought I would metion it here as this was a most unexpected result (at least for me)