JL Audio 13TW5V2-4 - 13.5" Inch 600 Watts TW5 4 Ohm Car Sub SubwooferJL Audio TW5 13TW5V2 4 13. 5" Inch 600 Watts 4 Ohms Car Sub Subwoofer JL13TW5 We couldnt leave the ultimate thin woofer alone we had to make it even better. Our patented thin line woofer technology compresses the architecture of the 13TW5v2 using a concentric tube structure that supports the 7 inch diameter voice coil and the suspension attachments. This permits placement of the large motor structure much further forward in the speaker than with