I have not hear Aerial 20Ts but having owned Coincident Total Reference with ribbon tweeters and previous to that full range ribbons Scintillas, ribbons no longer are my cup of tees as they are phasey and varies in response off axis. I own Revel Salon 2 and they beat Dynaudio Evidence Tempation, Kharma Grand Midis, MBL 111E easily as I owned these speakers as well. Further, I directly compared it toa YG Acoustics Anat Ref IIs my friend has(around $150K and they claim best speakers in the world?) and my friend ****ted in his pants. My speaker had smoother highs, better integration top to bottom with prodigious bass that was equal if not better than his mega buck self powered bass. There berylium tweeters are so smooth, extended and detailed, it has no problem replicating the highest notes and its harmonics with most demanding transients with ease. I used to get fatigue listening to other speakers I owned because of high frequency grit but I can comfortably listen and enjoy music for hours with these speakers. Salon 2 is a giant killer and by far the best value for high end speakers out there period. I've listened to Wilson Alexandria 2s at LA Audio and though it sounded good until they brought in other speakers to compare it to and you realize it sounded lifeless. So, unless you do A-B comparison on any these speakers or if you own the speakers in the same living space for quite sometime and you know the sound, subjective listening based on memory or in other room auditions and comments are absolutely meaningless.