Nice comfy room nice colour nice sofas nice it needs JBL!
Well JBL professional if, you want true cinematic sound performance all-around. For room of that size the slim-line JBL 3678 as used in the smaller digital screens Empire Leicester Square, London.
The specifications would be more than equal satisfaction for the fronts.
http://www.jblpro.com/catalog/Genera...x?PId=72&MId=1
JBL 8320 surrounds should be small enough to be placed around the room
http://www.jblpro.com/catalog/Genera...?PId=279&MId=1
If you what to have lower lows with higher impact the JBL 8340 will be more than satisfactory, heard this in action in Empire screen 1 There just a bit bigger and will provided smooth uniformly response.
http://www.jblpro.com/catalog/Genera...?PId=200&MId=1
Sub bass JBL 4645C comes highly recommended these pack an insane punch of impact kick slam and depth and one should be more than enough in the room.
http://www.jblpro.com/catalog/Genera...?PId=206&MId=1
But I doubt you’d have enough as this would cost more than $1 grand.