I live in Manchester UK, and a couple of nights ago I heard a thud thud thud - like a party a few doors away, or some kid with a v loud sound system in his car parked up outside. I opened the window, but could not ascertain the origin of the noise.
I found out the next day it was an open air Rihanna gig 7 miles away. There were complaints from 10 miles away.
Now that's a bada$$ PA.