I've got a single 20-30cs right now, living with my parents and it's in the living room. Will only be here a few more months, but was wondering if this room is a 'subwoofers worst nightmare' type of deal. 20ft x 20ft with a 8ft ceiling On one side is a 8 foot opening into the dining room. In the back a stairway leads well, upstairs. I basically set it up where my soundfield takes up half the room and the sub is in kind of a 'quasi-corner' type of deal. (A 2ft section pops out in the middle of the room.) So, is this a tough room?