my control room is in a loft that is open to the larger living room. There is a 1.5' opening that raps around the left of the room and rear in the middle of the 8' tall walls. The rear wall is not flat but three offsets that are stepped and open to the stairs going down. The top of the opening in the middle of the loft wall is flush with ceiling for the large living room that has 14' high ceiling below. Should I:
1. seal off the opening with drywall
2. fill it with absorption
3. just hang my acoustic panels to create an RFZ and not worry about the reverb from there bleeding in?
4. couple the spaces using a box shelf type design resembling the aurlex space coupler?
I get pretty good low end response in the room due to the large window at the front wall, the stepped offsets at the rear and the openings to a larger space. I do not want to lose that bleed of low end just want to clean up the high end response. I technically have very little rear wall and need something back there with diffusion to give me some diffused reflections. I track in here too so some liveliness using the other space as a reverb chamber had me curious about the coupling. Acoustic guitar vox, drum cymbals, and percussion are what gets tracked live.