How do I know if I have a broken speaker?

[sdxadmin]

I also have a Gibson, you should keep that forever (788d673f-b3c2-4a76-82ee-bd8ad988f759)

[sdxadmin]

I also have a Gibson, you should keep that forever (3443eb74-1938-4757-be8e-78feb8558b42)

[sdxadmin]

I also have a Gibson, you should keep that forever (2822b994-2a0a-45da-9f23-d08e034ce579)

[sdxadmin]

I also have a Gibson, you should keep that forever (82063dac-feb2-4236-95e4-c34416230614)

[sdxadmin]

I also have a Gibson, you should keep that forever (29f678eb-ef45-45d5-b08d-e5c8664195c7)