Neither, really IMHO there are just too many better amps out there. Try a Jeff Rowland or McCormack amp. Even Classe, Pass, Plinius, BAT or an older Threshold would do a better job. The Krell Master series is good, but their KAV series is too bright for my taste. The same can be said for the Proceed or ML amps (although the older ML amps weren't quite so forward sounding). Nice speakers though Gregory, they deserve better. Of course that's just my opinion.
Regards,
John