I've found that my ARC Ref3 sounds great into my Krell MDA/KSA amps. This series of Krells has a tube like midrange and treble plus the awesome bass of the Krells. The Ref 3 compliments and enhances the quailities of the Krells adding depth and imaging. With the Krells, one doesnt't have to worry about tube failure, but the heat issue is a wash.
In the final analysis, each to his own.
In the final analysis, each to his own.