Oh wow! Totally forgot about this. About 2-3 weeks ago, I sent out my Guitar Hero 3 for the Wii out to be replaced because of audio problems, and just yesterday I got my replacement. After 1-2 songs, I guess I hear a difference. At the very least, it sounds more like it fills the room rather than a direct output on one side.
No matter. Out it goes, in goes Brawl.