Kafuty 5 inch /4 inch Horn Rubber Edges Replacement Woofer Repair Part Speaker Surround Repair Subwoofer Foam Edge Repair Replace for JBL/Swans Speaker Edge (Black)(4 inch): Amazon.co.uk: Electronics & Photo
How to Repair a blown subwoofer « Home Audio :: WonderHowTo
My rubber around my sub got torn all the way around. Here's my flex seal repair job. I know it ain't pretty but it sounds good as new lol. And before y'all
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M & K 8" Subwoofer Foam Speaker Repair Kit FSK-8-1 (SINGLE)