[bpape]

Hi Kurt. Welcome to the forum.

The first thing I notice is the absolute total lack of any soft surfaces. Brick walls, all hard floors, etc. The furniture is good but just not enough in that space. Here are the kinds of things I'd recommend:

- Diffusion behind the MLs. This needs to be controlled and normally we'd use absorbtion. With a panel, you just can't or you screw up the balance.
- Get a good rug on the floor of good size between you and the speakers.
- Move your seat away from that hard surface (half wall) behind you and put some broadband absorbtion behind you on the floor/wall intersection
- Scattered absorbtion on the side walls for reflection control. This may be an issue since you have shelving on one side but if it's albums/books, they'll provide some absorbtion at least - much better than a brick wall for sure.
- Ceiling, this can be done with an absorbtive cloud (recommended) and/or some diffusion. I recommend the absorbtion since it's the same dimension as another dimension in the space.
- Broadband bass control in the front 2 corners and across the front wall/ceiling intersection.
- Up high on the side walls, now here's where we really need to think (and probably the last thing to be done). I'd do the rest first and see how you like it. If you're good with the imaging and the decay times are good but we still have echo/slap/zing from the untreated up high, then I'd go diffusion. If we need more control still, then a combination of absorbtion and diffusion is most likely the answer.

Bryan