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![2X Speaker Port Tube Bass Connector Audio 8-12" Subwoofer Woofer Hole Box | eBay](https://i.ebayimg.com/images/g/V~gAAOSwQYpdqdLM/s-l1200.webp "2X Speaker Port Tube Bass Connector Audio 8-12" Subwoofer Woofer Hole Box | eBay")