Downstairs had the volume at ungodly levels yesterday. Our dishes up here were rattling in the kitchen. I have no idea what it was he (they?) were doing down there. My guess is a video game, since no movie lasts for over four hours at such a high volume. And they (he?) have the bass turned all the way up. I don't get that. It doesn't make me think you're more of a man if your stereo- car or home- has thumping base. It's annoying and distorts the sound.
Roommate and I are debating how to bet address the situation without starting a war (I cannot speak for the people in the apartments below the new neighbors and how they are dealing).