I have a large room with a wall of glass (19x39x9) and have truly enjoyed my full range Alon V MkIIs in that room. The flooring is wool carpet over tile. I have drapes I can pull over the windows.
I found dipoles sounded superb in this room. I would heartily recommend very dynamic dipoles like Alon/Nola or wide dispersion spekaers like Ohms or Shahinians, or possibly planars (you may need to augment some planars with subs).
I had a client with a similar type of room as yours (post & beam construction, open plan, tall ceiling, glass etc.) and his Apogee Divas sounded better in that room than they did in his former home where he had a room specially constructed for them.
I travelled to be able to audition what I was interested in. Try it - you may like it.
I found dipoles sounded superb in this room. I would heartily recommend very dynamic dipoles like Alon/Nola or wide dispersion spekaers like Ohms or Shahinians, or possibly planars (you may need to augment some planars with subs).
I had a client with a similar type of room as yours (post & beam construction, open plan, tall ceiling, glass etc.) and his Apogee Divas sounded better in that room than they did in his former home where he had a room specially constructed for them.
I travelled to be able to audition what I was interested in. Try it - you may like it.