My apartment complex has good sound insulation, but not for low frequency sounds… Which I discovered when my neighbor started using her home theater system for alarm clock. At some ungodly hour like 4:30 am.

And no, the sound itself was not super loud. Actually, you could barely hear the music even if you lean your ear to the wall, but the low frequency booms were drilling through like if there was no wall at all.

Several attempts to reason her into switching off the sub-woofer were met with total lack of understanding. Maybe she did not know what a sub-woofer is, or how do you disable it. Or just thought I’m making things up, after all, she’s not playing the music *that* loud…

This way or that, I had no choice but to resort to some kind of devilish counter-action. Sure, the person waking up at 4:30 would go to bed at 10 pm or even 9…

So. Each day I have to wake up to the morning boom-boom, I’m detaching my sub-woofer, putting it next to bedroom wall, plugging it into laptop, and scheduling an hour-long playlist with some juicy bass part to start at 9 pm (sometimes, I’m not back from work at this hour).
Just to give the neighbor a rough idea of how does it feel.

Could be a coincidence, but it took less than a week to have the morning sound attacks stopped completely.