Soundproofing a room without deadening the sound


I'm turning a bedroom in my apartment into my listening room/office. The room backs up against my neighbor's room.

He's never complained about noise, but this will be a whole different level. Any suggestions for sound-proofing the room without deadening the sound or breaking the bank?
bgupton

Here's a good thread for you to read,

http://forum.audiogon.com/cgi-bin/fr.pl?htech&1366918258

Also, there is a link in the thread listed as "Sound Proofing Company", so be sure to click on it as well, extremely good information.
Easiest is use earphones. Practical, and no noise whatsoever disturbing your neighbor.
Not practical, but I once had a buddy in a condo situation who put 2 inches of cork on an adjoining wall.
Acoustical treatment and sound proofing are like apples and oranges. Acoustical treating a room is rather a cheap affair if you are doing a home brew project. Sound proofing involves almost building another room within a room. The best of luck.