Best near wall high end speaker

No good ones that i know!!

In addition to the Duette, the Von Schweikert Vortex VR35 is also made to work within inches of the back wall. Best of luck.

I am extremely happy with my Larsen speakers. I originally purchased a pair or Larsen 6s and later upgraded to the larger 8s. These speakers are designed to be placed right smack against the wall and sound great. The 8s extend down to 23Hz and list for under $7K (I think). The smallest Larsen speaker, the 4, lists for less than $2K.

I agree with the others - this is not a good idea, you'll have two dimensional sound. $10k for this application makes little sense, just get something for $2k or so.

Gradient makes speaker designed to be placed against the back wall. The Revolution may be a little to large given your stated dimensions, but the Evidence and 6.0 fall within the specs you have provided. That said, I would probably bet that the Wilson Audio Duette would give you a higher level of performance (albeit at a much higher cost)