Just finished deconstructing my new space for our HT room. The dimemsions are 11' x 17' with 8' ceilings. One end will have a new wall and door. The other three sides are solid frame. I have decided to install a riser from the back wall(11' wide) for seating. This is opposite the wall with the door and soon to be purchased RPTV. I was thinking about bringing the riser out 5' so I had 1' behind the rear listening position and 1' for leg room( loveseat is 3.5' deep)hence the 5'. I was going to use 2x6's to get 6" height. My questions are this: 1)With a 55 -57" RPTV how far should the closest seating position. 2) how high should the riser be given the 2 seats (couch and sofa) are the same height. 3) I am planning on getting dipolar rears. Where should they be placed on the side wall to allow both seating areas to maximize surround effects. 4) Are there any things that I need to think about like adding a rear center surround jack. Or using riser space to negotiate wire paths. BTW my plans seem to keep changing and every time they change it has a direct correlation to the amount of money being spent.