Add the PA2400, and Signature 1.5 to that list as well.
Mcintosh is more of a status symbol IMHO-good sound, but H/K amps clearly best them in sound- as those coupling transformers, IMHO kill sound-yuk!
My two best audio buddies, certified Mac freaks, both agree my H/K amps have a one up on them-it pretty easy to hear. Especially through a revealing speakers, such as AMT3's and the like.
Wide band width, high slew rates, and fast transient response make a difference. H/K amps in part where the reason test data looks at square wave response.

