I got my MacBook 2016 15” repaired TWICE. First time the battery needed replacing, the second time I took it out for being serviced I was experiencing the good old butterfly-keyboard issue. So the repair was free even if out of warranty. My whole topcase got replaced. So I also got new speakers. And now I’m experiencing the same issues as mentioned above. I have experienced a loud pop on the right speaker that only does low frequency sounds. And my left speaker only does high frequency sounds. Balance is correct. This started after macOS Catalina update. Really sad that I have so much trouble with a 3200 euro costing machine. The Apple experience is ruined for me. These lineups are real garbage.