Specifically Ritteri? Like what? Do us all a favor and educate us with something besides suppositions.
If you can't provide specific examples then stay the heck out of it.
NONE of Adcom's products rates as doubling power in halved impedances, either by their own publication or by anyone's tests! And forget them working in class A, they are biased for class A/B at rated power. Big difference.
Put a 2 Ohm load on an Adcom and get out the weenies and marshmallows. (keep the fire extinguisher close by)
And why do you own Aragon if Adcom would suffice? Yeah, I thought so. Exactly!
I think the best thing about this thread is that it at least encourages all the whining trolls to emerge from their gulches and belch a few times into the wind before running back from whence they came.