Wilson Maxx3 vs Avalon Isis


Hi,
I am looking for an upgrade from my Kharma 3.2.2. The Maxx3 and the Isis both similarly priced, are on my list.
Can anyone who have heard both give some comparisons of the two.. in terms of musicality, dynamics, refinement, soundstaging, and importantly demand for amplifier power?

thanks.
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Missioncoonery
My kharma is just too small for my new room (17' x 21'). Not enough scale.
HiFi+ has a review of the Isis by Roy Gregory that is fairly accurate. The Isis are detailed, coherent, holographic, and provide heft at the lower end to give music some body and presence.

They need special attention to component matching, and some may find them overly detailed or dry. Finding a good amplifier was actually a bit of a challenge. I'd want at least 300 watts, and if considering tubes, think of something with a large transformer.
From what I read, Maxx3 is more flexible with a wider range of amps...even some SET tube amps will do. Isis is more demanding in this regard. Which SS amps would be a good match? and which tube amps will be a good match, without toasting my room?