Hi, Right now I have a pretty decent setup. I have a rather large live room in my basment. Then there's a hall and then theres another room where my pcs at. The control room i guess itd be. In the little hall i put a room full of foam for my guitar. I no that matress foam only works with mids and highs but i dont have a prob with that i dont get no boominess. i just have it to reduce reverb and so i can turn my amp up louder. But how can it better for not much money. the live rooms made of cement blocks. and we are going to hang dry wall up in the whole basement though! will that make it better? wut are somethings to easily and cheaply improve such a setup?