I might be moving in the near future. The place I'm looking at has a 'living room' that seems very well suited to my frugal HT setup. It's a rectangular, otherwise empty room that I estimate is around 14' x 18' with an 8' ceiling. There is one entrance door near a corner and a couple of windows along the short back wall near the door. The primary seating will be a love seat probably near the center of the room.
I live with my GF and we're both students so we're working on an extreme budget. I know I'll need to do something to this room to get decent sound inside of it. There's a lot of drywall in there. I'm new to room treatments and acoustics, but I have used tools like REW in the past.
Can someone help me out with the real minimum basis that I should try to think about to make this room more appropriate? Should I immediately think about doing something along the back, front, or side walls, or even the ceiling? Should I bother doing some measurements and treating in response to that?
If it matters, I have NHT SuperZeroes and a SuperCenter up front, Polk R15s in the back, and a Dayton HF 12" sealed sub.