Ayre amps provide a lush dark backdrop which I've heard in no other amplifier. I don't mean they are dark sounding (i.e. reduced treble) but that the sound seems to emanate from absolute nothingness and explode without boundaries. An effect I've not heard in any other amplifier.That is my experience, also. With a good speaker, there is a boundless sound that is intoxicating.
I also like ARC. I guess I need to hear Atmasphere!