New Adcom 👀585 SE. anybody heard this monster

Hello Teo
Thanks for the detailed information.   I don’t understand everything you said...balanced bridge, grounds etc but these observations to date are throwing cold water on my possible plans.  The speaker you reference is in fact the
ones I have.  Perhaps the old Aragon Palladium
monos I have will be hard to beat without spending mega dollars ?

I can't imagine going from the Paladiums to Adcom.

You could find someone competent with a history who can do a modification/upgrade of the palladiums, a minimal cost upgrade.

That may be a way of getting toward what you want without spending much at all.
cleaning up an amplifier can cause the dynamics we desire to come out of hiding from the noise the amplifier produces in sync with the signal. After all, this is what they are doing.
found this:" Plastic Binding Post outputs; replaced with CARDAS binding posts. Runs class A to 125 watts; generates a fair amount of heat. "
If this is true of the amps you have, then the heat will have by now wreaked havoc with the small electrolytic capacitors in the unit and its sound is going to be sub par from when new.

I don’t know what an upgrade would involve?
the amps sound great , don’t know what could be done to wrangle more power out of them?
would auto formers be workable?

Not more power, get rid of the mud that has very likely crept in... and an upgrade in speed and resolution.
this tends to be where satisfaction lies, it's just that we seldom reach it well enough to understand it.
Don't increase the volume, lower the noise floor. Ie, low distortion, high dynamics.