New MBTA10250D rattling after install.
I hope someone can help. My wife ordered me an MBTA10250D from Amazon for x-mas. Last weekend the weather allowed me to install the sub in our boat. With the seat down all sounds great. I just noticed while cleaning the compartment where the sub is, it makes a horrible rattling noise. When I touch the woofer directly (barely) the noise stops. With the woofer off if I press the dust cap it makes a grinding noise and feels rough. I assume the voice coil is bad but not sure. I haven't even got adjust the gain and see what the woofer will do. Any ideas what to do next?