Maximo said:Flint said:My preference is option three, but I would move the side surround speakers farther to the sides.
I would use the cubby area next to the window as a large bass trap - imagine what looks like a row of cabinets along the ceiling hanging down 18" with a fabric faced open frame cover designed to blend into your decor. Fill that entire length of "cabinet" with fiberglass batting and you'll have a phenomenal bass trap in a good location. Bass energy is inherently attracted to smaller cubbies and cavities (as well as corners).
Forgive my ignorance. But I am assuming that means that less bass energy will escape the room because it is being trapped in that soffitt or that it will help me tame standing waves, etc...increasing the quality of the bass.
The realized benefit will be the room sounding better for the listener in the room. There will be a slight reduction in escaping bass, but not enough that you'll appreciate it outside of the room. Keep in mind that acoustic energy is perceived exponentially. A 10dB increase in bass sound (perceived as about a 2x increase in "loudness") requires 10x the energy. So, a 3dB improvement in the bass peaks and nulls in the room isn't going to be a huge difference in the amount of energy in the room and escaping the room.
The whole point of bass traps is not to reduce the acoustic energy from the subwoofer. It is to reduce the reflected energy off the walls, ceiling and floor. The goal is for the initial sound from the subwoofer to wash over your body and instead of reflecting back over you, over and over and over and over before it decays, the sound will wash over you then reflect over and over, decaying very rapidly.