I would not go down the DIY room treatment path, unless you dont care how they look! It's not the case for everyone but consider what you need to know about room acoustics as it's complicated. There are many products out there that wont break the bank and they work. Try Sonex, RPG, Echo Busters, Tube Traps, etc.. pick up some foam panels as you get around ten 3 inch for $90 and use them around the room to tame the highs, then pick up something for the corners to help with bass, these will cost a bit more but well worth it as these companies know the right material to use, etc..
I tried the DIY and they all looked like $hit and didn't do much as to improvements. This is just my opinion. Happy Twaekng!
I tried the DIY and they all looked like $hit and didn't do much as to improvements. This is just my opinion. Happy Twaekng!