I am sure it will help. I'd try a Rive's Audio Plan first....$1200...then decide whether to buy or build the treatments...I suspect you'll get a more comprehensive plan that won't do any harm to the sound...
http://rivesaudio.com/services/servframe1.html
Anything else maybe hit or miss...
http://rivesaudio.com/services/servframe1.html
Anything else maybe hit or miss...