Purely out of interest, do you get any complaints / comments from the other flats?
We live in a detached house & couldn't imagine our soundbar going full tilt if we were even semi-detached, never mind in a block of flats.
Strange you should ask that question Diasi.
The Asian bloke in the flat below has complained he can hear our tumble dryer. Washing machine & TV.
Don't forget the floors & ceilings here are almost 2 feet thick.
Last time he complained I sent him on his way after a few choice words. My wife & I don't make noise in fact the washing machine is never used before 8 am.
I suspect he has a bit of autism which is his problem & not mine.
I'm expecting a knock on the door when complains about my headboard banging on the wall.