I have a dedicate HT (15'W X 24'D X 14'H) and my mains are Martin Logan Aeon i's. Because of the airy sounds stage the Logan's present, some reverberations are present....but they sound great! Without a doubt I need to install sound panels but where? Are there common locations they should go, do I install them in the front and back of the room, will I need to put some on the ceiling because of the height, or is it hit and miss?