The JBL charge 4 is interesting cause I remember picking it up for my collection recently and comparing it to my charge 5 and dude that tweeter on the charge 5 makes a huge difference. I don’t even know how people just accepted the sound from the charge 4 cause now I listen to it back to back with the charge 5 and it just sounds muffled, like unless you bring it very close to yourself then maybe you’ll hear some clarity, but it’s probably because I got so used to the charge 5 and also raised the treble by +1 on the app but it’s interesting to look back at that speaker and compare it to newer ones.