Weird noise / to properly break in a subwoofer

[Quaid_Station 10+ year member]

I have a dad bd 12 in a 2.3cuft box with a 4" diameter aero port tuned to 32 hertz.

Whenever I play rack city or in this thang by tyga or any really low bass song it makes a weird noise.

Is it ruining my sub because of improper amp tuning or is it bottoming out or what?

I don't have the money to buy another sub so is this preventable or should I be worried?

Plus how do you properly break in a subwoofer?

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