Speakers for a Large Room (20’x37’)

Spatial Audio X series.

@cissado, thanks for your info, especially since your space is similar.  I'll check out the Paradigms.  We're still in the process of getting some rugs down so there's a lot of echo right now.  

@jackd  Hadn't really considered a boxless speaker.  Are there advantages over other types of speakers in a larger room?

With a large space and using the long axis I would consider something like Wilson that can generate a good sense of power. Generally a Wilson speaker will require big amp output. Stand Mount could work as well. A good quality speaker makes all the difference in sound. BTW a baffle will add a bit ( 6db ) to the power response of a loudspeaker.

@doni 

More forgiving of placement and the Spatial's use professional drivers are capable of effortless high volume.  With the X series you have the choice ot 2 models with the powered bass driver or a recently released all passive version. I have a pair of their all passive predecessor that I use in a room similar to yours at 22' x 26 x 10' for the main part of the Family Room with an 8' foot wide opening into a 14" wide Kitchen/Breakfast Room.  They can fill the whole space effortlessly at almost unbearable volumes if that's what you want.  They are also very effiecient at 97db for the power models and 93 db for the passive. Another speaker that has worked well for me in that environment are the Nola KO's whose upper half of the cabinet is open baffle with the two woofers in a ported enclosure at 91db.  I think at the current price the Nola is about twice as expensive as the Spatial.  If you want more info on the Spatial look at their dedicated area over at AudioCircle.  Many dozens of happy owners and participation from the company owner too.