You might try tweaking speaker placement first. I've tried a lot of formulas...the best one for me was placing the speakers against the narrow wall in the room firing down the longer length of the room and placing them one fifth in from the side walls. Measured to the center of the front baffle or to the tweeter or half way between the tweeter and the mid-range/bass driver. So if the room is 160"w, for example, you would have the center of the front baffle 32" in from each side wall. It's a starting point...then tweak from there. 1/5 front to back too...but that was not possible for me...but I got excellent results regardless.
Speaker placement first, then acoustic treatment. Best sound I got was having nothing between the speakers (except a thick Persian rug)...so placing the equipment rack along the side wall. Most people can't do this...but this really helps imaging.
Also avoid any picture frames with glass. Art with canvas or wood carvings are helpful but anything hard/shiny/smooth is problematic.
Speaker placement first, then acoustic treatment. Best sound I got was having nothing between the speakers (except a thick Persian rug)...so placing the equipment rack along the side wall. Most people can't do this...but this really helps imaging.
Also avoid any picture frames with glass. Art with canvas or wood carvings are helpful but anything hard/shiny/smooth is problematic.