My downstairs neighbor is a rude ass. Despite my cordial requests, he plays the worst crap music at earsplitting volumes constantly. I've spoken to the complex management about it and they just make note of the complaint and tell me to call the police. I don't want to be that guy...that calls the cops on someone, but I'm running out of options. He doesn't listen, and won't give an inch.
A long time ago I lived in a basement apartment. The upstairs neighbor would come home drunk at 2 and turn the stereo on full blasllt and pass out. My kids had been out messing with the electric boxes and I figured out which one was his. Soooo, one night when he came home and turned the music on I just ran out and shut off his electricity. I waited about an hour and then turned it back on. He shut the music off right after I turned the electricity back on. LOL
at about 2:30 or 3 in the morning, or whenever this guy sleeps, lay your speaker's face down over his bedroom and play Copacabana one time, then turn it off. do this for about a week. if he comes banging on your door, answer it with a big stick. or call the cops and say you got some crazy guy outside acting in a very threatening manner. just a thought.
take up tap dancing. lots of practice needed for tap dancing you know.
There may not be any good options besides moving. If you get into a pissing contest with him, who knows what he is capable of. Look at your lease and look into the laws in your town an state. It may be that if he gets a certain number of police reports filed, the complex will have grounds to evict him. Good luck, neighbour issues are the worst.