Speaker recommendations for MC275


 Can anyone recommend a good speaker match for my McIntosh MC275 VI?  (Mac c2200 preamp)

Currently have the original B&W N804.  I’m looking to upgrade.  Budget is max. $12K.  New or used.  My room dimensions are 21’ x 12’ x 8’ H.  
vilet
Definitely a vote for Spender D9’s too, but check out the Magico A-3’s, Wilson Sabrina(used) or KEF LS 5o. The Vandersteen Treo CT should also be considered as well IMHO. You may appreciate the new B&W series as well. IMHO All depending on room size and preferred listening levels.