How do I know if I have a broken speaker?

[sdxadmin]

I also have a Gibson, you should keep that forever (2c76cafe-bea5-4157-8332-dd2022b12a12)

[sdxadmin]

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[sdxadmin]

I also have a Gibson, you should keep that forever (0e019709-aa45-4f4b-9765-ebc2223eb7ad)

[sdxadmin]

I also have a Gibson, you should keep that forever (be1270f7-cfc7-41b6-ba0b-f5479e074133)

[sdxadmin]

I also have a Gibson, you should keep that forever (b4d80c96-d01f-410f-9e4f-2de0564c1864)