Does anyone know what each speaker does in the front of the g63.

there’s is the larger bottom door speaker, the smaller speaker higher up the door and then the speaker on the dash?
Wondering if one is specifically for bass, high tweeter etc? Vocals etc…?

the reason why I ask is my driver side door speakers are all muffled. Just bass sounds no vocals.
the dealership is just replacing the large driver door speaker, but I feel all aren’t working as they should. It is hard to test them in isolation.
if none of them are for bass. I feel like they are all broken.

thanks