You can do it with a 0.3 oz. bottle of "dap" contact cement or elmers glue. remove the gasket and rub off old rubber (or foam)， apply glue to cone. center the surround evenly as you place it on cone.squeeze the inside of surround to cone with fingers， go around a few times til it adheres.apply glue to outer frame， press down surround.reglue gasket to outer surround If you feel you\'ve botched the job you can always rub off rubber material and try again with a new surround.

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