Ok, fine, although I'm not sure why you would want to subject yourself to such prejudicial thoughts of others. Ultimately it's your ears that matter the most.
I don't personally like the RF-83 that much.
Never heard the Adagio.
My wild guess is that you'll prefer the Adagio, just make sure they have the capacity (and you have sufficient amps) for them to fill your space. They are ~10db/w less sensitive than the Klipsch.
Didn't you just get a pair of used Klipsch fortes too? Even those are better than RF83.
It sounds like you are doing the audition of the Adagios, and possibly others, in your home, which is the only way to do it properly. Thumbs up on that. Have fun, and don't forget about the music!