Foam in the center of the BW magnet?

Chris Johnson · From: USA

What is the reason for it being there?

Anyone notice any differences in sound without the foam being there?

Thanks,
Chris Johnson

Jerry Erickson · From: Atlanta,IL 61723

It's probably there to cut down on dust and dirt from getting into the voice coil,magnet gap of the speaker. Over time, the foam will deteriorate into a powder and get into the magnet gap,where it will heat up from the movement of the voice coil and it will melt and cause the voice coil to fail.

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