Hey all, I was looking for advice on having a subwoofer in an apartment. I'm looking at possibly adding this to my set up.... Definitive Technology SC4000 SuperCube powered subwoofer and putting in on a sub dude hd. I live in a concrete building so my sound insulation should be pretty good. I've also thought I should probably also have it about 3 feet away from a wall as well. any other tips or tricks to avoid noise complaints or am I probably screwed in that area? I don't listen at crazy high volumes but I know bass really travels. Thanks for any tips/suggestions/past experiences in advance!