Hi, I finally managed to setup REW and have taken some measurements. In my lounge / setup I am very limited with subwoofer placement, currently using a Monolith+ as shown in the attached diagram. It's a rectangular room with part of it blocked out (as seen by the black box) and I am sitting on the long length of the wall. It's about the best friendly / home cinema layout I could come up with and for the most part I'm really happy with it. Current sub position is giving me REW results as attached under 'original position'. (Sub woofer is placed to my right hand side) I would like to add a second sub but it gives much worse results (attached 'second position') This subwoofer would be on my left hand side the same distance from MLP and the first sub. If I average the two results in REW I get the third result 'average of two'. Would adding a second sub be a terrible idea? Both subs are basically touching the couch and very close to MLP.. I am considering building some sealed subs and wondered if there was any worth in building a second one knowing it can only be placed really in that second position? Thanks.