I don't always agree with Audiofeil, but I do agree with him Aerial 20T are something special. in my two separate dealer audition experiences, both occasions impressed me quite a bit and I don't get impressed easily. I tend to like paper cones over plastic or hard metal cones, paper sounds more natural to my ears with the slower and longer decay. there are exceptions, but rarely.
Aerial combines ribbon with paper cones to create a very clean top and natural sounding mid/bass. I found the sound very pleasant and easy on the ears. I heard the Savoy once, not in a very optimized room, I walked away feeling confused and impressionless.
the exception I was talking about was Usher BE-10/20. it's rigid cones for tweeter and midrange, but the resolution, speed, and lack of grain are something special. personally I will pick BE20 over 20T, but that's me.
