Is There any Truly "High End" Integrated Amp?



I'm a reasonably well experienced audio nut and have tried a number of "good" integrated amps. I wonder, though, if there are integrated amps that are good enough for the "best", most revealing speakers. (Think Avalon Eidolon, Verity Parsifal, various JM Lab Utopias, and a variety of other fine speakers that do not have mammoth power requirements.)

People talk about the Levinson, the Musical Fidelity KW-500 and the lesser MF amps, the BAT integrated, The Rowland Concerto, etc. etc. etc.

I would like to hear from people who have actually tried the top tier of integrated amps and would be very interested in learning of their findings.

Don't need to be the most expensive. Could be the YBA Passion, Classe, MacIntosh 6900, Krell 400i, or any of a number of integrated amps that are supposed to sound good.

Hope to hear some good feedback.

Thanks very much.
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In my many years of audio, I've never heard an integrated amp that comes even close to the Jadis DA 88 Signature. It has seemingly endless power, driving Merlin TSM-MXs, which are not all that efficient, is detailed, maybe slightly euphonic, but incredible speed and dynamics, but mostly, it is as smooth as butter and refined with a musicality that to my ears is unparallelled.
I would have to say,KARAN ACOUSTICS.The KAI-180 replaced my CAT ULTIMATE MK3/ART AUDIO JOTA SINGLE ENDED combo.Fantastic sound.
I think my Audion Silver Night MkII PX25 counts as "truly high end". However, amps with that basic accolade can differ all over the map in capability, and all require sympathetic systems to bring out their star qualities. The Audion's 6 watts might not sound quite so high end on a pair of big JM Labs Utopias, but in a system with the right speakers and source, they are worth their price.