For the first time ever I'm setting up a dedicated listening room. Previously, speaker location/listening location was pretty much dictated by the room. Now I have a lot more freedom in placement but have a question about how to do so. RealTraps has a set of tones available on their web site in 10Hz steps from 10-300Hz. When playing them back the first time with the way I initially placed the speakers/listening position I found that in general, the tones between 50Hz and 110Hz were way down in volume compared to those above and below that range. Not equally down but down just the same. Moving the speakers a little closer to the wall helped and moving the listening position further away from the speakers also helped. But what surprised me the most was that standing up or crouching down to the floor was like turning my Ref 3 volume from 30 up to 40 for most of the range. That's not true for the 60-69Hz range, forward or back, up or down, nothing will bring them up in volume but for the rest of the tones, listening at anything BUT tweeter height gives a big boost to the bass. Does anyone have any idea what might be my next step other than standing to listen to my system? I haven't given a room or system description because I assume there's some basic audio theory at play but I'd be happy to provide that information if it's of any use. I do have a set of the RealTraps Mondo Traps in the corners behind the speakers but that's the only specific room treatment that I'm using. Thanks.