Avalon Eidolon Diamond or Aerial 20T v2.

for the record, I have heard all the speakers I listed above mated with Boulder, Ayre, Lamm, BAT, Burmester, Einstein, Gryphon, EAR, and others. long enough for you? stop wasting bandwidth and go hide in your own cave if you have nothing concrete to offer.

if you want music, you should think twice about Avalon. I have not heard any ceramic midrange speakers to sound natural over the long haul. diamond tweeter or not, most critical is midrange and ceramic is just not the right material to many people's ears. what is ceramic? ceramic is essetially aluminum oxide and how often do you see aluminum used for midrange now a day? people have learned the disadvantage of aluminum midrange and stop using it long ago.

but Beryllium is a different story, I love the way Usher BE makes music in midrange.

a lot of things look good on paper, but they don't necessarily sound good in real life. I have heard Marten Design, Avalon, Lumen White, Gryphon, and Tidal extensively, all use ceramic midrange, all left me cold after half an hour.

because Bar81 is very defensive of what he owns, everyone can tell

something I noticed after owning 20T for a few months.

20T bottom firing port, unlike B&W which has a fixed base with predetermined distance to the port, can drastically affect how the bass is coupled to the room. so do play with speaker heights, a little change there can make a big difference in sound.

Tilt. Aerial likes to have their 20T tilted slightly upward duirng demo. depending on music, I do like slight tilt most of the time. can't tell you the angle of tilt, but my very sensitive bubble level definitely captures the tilt. slight tilt gives a more pleasing presentation instead of very direct and in-your-face sound. 20T's ribbon is very vivid and has good micro dynamic, slight tilt will achieve a more musical balance.

don't use supplied jumpers + wires, bi-wire them if you can. if you don't like running two long speaker wires, at least run one long jumper wires from bottom binding posts to the head units. you will notice less glare and edginess on less than perfect recording. especially if you have them toe in crossing right behind your head, you will hear big improvement in midrange/top end smoothness.

I will try to put my 20T on some solid platform like granite or Symposium shelf to control port distance and air diffusion/absorption, my 20T sits on carpet with thick pads and there is strong interaction to the floor.