I will likely be getting a single next year on my campus, and want to make my room someplace where I can listen to music loudly without disturbing others as well as maybe improving the acoustics of a room. I also may play guitar in the room a bit, and have a big amp and don't really want to spend 200 bucks on an attenuator. I know this is completely a soundPROOFing question, but, what do people suggest in terms of walls/ceiling for making my room quieter for those around me?