My current 5.1 is in an open living room in my townhouse. The entire setup occupies a 9-foot wide by 12-foot deep area. I have three Ascend Acoustics CBM-170 SE as my Fronts and two Ascend Acoustics HTM-200 as my surrounds. I have been curious about going to Dolby Atmos 5.1.2 but I am not sure how to do it with the way the room is laid out. What about putting some HTM-200 much higher up on the back wall and have them angled down for Dolby Atmos Height speakers?