It after 10pm here. The noise ordinance specifies below 60 dB level after 10 pm. That’s not very loud, and it applies AT my property line. I’m within the law to report.
Sue them. Record on camera with a standard Radio Shack decibel meter and sue the pants off them. If they’re renters they’ll leave. If they’re owners you can levy the judgement against their house in a lien.
Get a bullhorn and drive down the street at 3 am yelling “La Migra!”