Brach,
Do you have a gun? Shoot me! Please, shoot me! I went through my board again checking everything and noticed some resistors that didn’t look right. It turns out I switched up R1/R3 with R17/R21! No wonder it sounded like shit. Anyway, I’ve fixed it now and it sounds glorious. Thank you for putting up with my stupidity and I’m sorry for wasting your time.
Rock on!
Peter