Is it something about the Revel sound, as you ask, or something about the Thiel sound? Thiels have a lot more of their own "sonic character" than the Revels.
Revel or Aerial
If you had an opportunity to go from Revel F208s to Studio 2s or Aerial 7Ts, which one would you choose. The price is the same; therefore is not a consideration. I don't have an opportunity to listen to the Aerial 7Ts prior to purchase. My system consist of the following: Parasound Halo A21, NAD 565bee CD Player, getting NAD M51 to replace Peachtree Nova preamp, and Revel F208s.