@Dave and Troy
In the early 2000’s and late 90’s, we carried Krell in our stores. They wowed some and fatigued us. They were what I’d call "pitchy" toward the upper octaves creating an unpleasant stridency. We were comparing them to some of the other amps we sold being ARC, Manley, Quick Silver, etc. The Macs seemed like people singing thru a pillow back then but I guess they may have changed as well.
The Krells were so "speaker dependent" back then, we paired them mostly with Spendors to acquire a better sound.
At any rate, I am curious as to what Krell did to tame down their amps because what I’m reading speaks of a different voicing presently.