To those of you who are apartment dwellers: I'm in a 24' X 12' living room space with open sides to a kitchen and hallway (which connects to back bedrooms). I want a sub for Music and HT, but I'm concerned that the neighbors will kill me. Now I don't listen at obscene levels but I do savor the experience. I want to feel the base without creating enemies. Is this possible? Should I still go for let's say a 10" sub vs. an 8 " sub? Do I still want to or need to go down to the 20's (Hz) or even lower? My mains only drop to (+/- 3) 52Hz. Any thoughts?