Well it's pretty much a big open room connected with the kitchen/dining room, vaulted ceilings, and then the front room which is divided by an 8' high wall between the kitchen and front room. There is also a hallway at the back left corner of my room. The room is about 14' front to back and about 50+ wide, counting all rooms.Response at the entertainment center is pretty good. A BFD would help you get a house curve, if you're interested in that, and perhaps get a smidge more extension, assuming you have the headroom.
It is a bit curious that a sub rated for extension to 24 Hz can't manage to go that low, and that the corner reading has less extension than the other one. Is your room overly large, or open to other areas in the house? Are there openings in either of the walls near that corner?
It will have no effect on the results, other than showing the overall level a bit lower than it otherwise would have been.Wayne, if it says I'm clipping in REW and I have to back it the level down then wouldn't I be running the sweeps below the 75db ref point? And would that affect the sweep and results?
Possibly, but most likely no more than a few Hz. The biggest detriment to large open floor plans is reduced headroom. However, they make up for it in other ways, like more uniform response across a broader seating area.Could my lack of low extension be attributed to the large open floorplan design?
I decided to go with another pa-120, gotta stick with the budget. I figure if it doesn't work on both sides of the entertainment center than I will try co-locating them on the left side. I figure then I will have some additional output and it might help with filling the room more.Hard to say, every room is different. Some people seem to like stuff like that, others get worse overall response unless they co-locate the subs at the optimal location. I think I'd spend my money upgrading to something that will get down to 20 Hz or lower rather than buying a second sub that seems to have at best average performance in your room.