Speakers with a slightly warm midrange

I would add Dynaudio. I have a pair of Sonus Faber Sonetto III and also Dynaudio Evoke 50. For me, I find the Danes to be much more airy and lifelike. The SF's almost sound a bit more muddled when compared to the Dynaudio's. Believe me I am not knocking the SF's it's just to my ears and preferences the Dynaudio's are that good. Good luck and remember to enjoy the ride :)

@acdvd 

the 866 is an amazing amp. Did you get the digital side as well? I did with mine and the internal DAC is fantastic. My speakers are Rockport Avior ii and the combination is superb! Incredible detail not analytical or harsh. Good luck! 
 

Ron 

I would never credit Revel speakers as having a "warm" anything....they strive for neutrality, in a good way.  Sonus Faber is a good brand to consider, but your room opens into a larger area so the models you mention may not have enough cone area to pressurize all that volume.  I would add the Focal Kanta 2 or better, Kanta 3 to your list.  They are warmish and have great clarity and plenty of sock.

Yes i have the digital 866. 
the speakers would be along the long wall and the listening area is at the end of a long room if that helps. So the bass drift would be on the one side but I don’t think too much. 
has anyone tried the Dali epicon or dynaudio heritage special. Not sure if they have a warming midrange 

Vienna Acoustics.