I currently have a standard, non-tower build with R11 on three sides.

I've pulled the speakers away from the wall (which made a huge difference).

My audio vocabulary is not the best, but here's what I'd like to accomplish -- What I would like to change is the way *some* female vocals can occassionally irritate at louder listening levels. At the same time, I'd like more present highs with greater clarity. Lastly, anything that will add to the sense of "hollowness", depth and increased decay.

Any ideas are appreciated. Thanks.