JL Audio have long been associated with subwoofers and that is very much still the case. On the home audio front they take the subwoofer to immense levels of power and performance with their Goliath v2. JL Audio also produce brilliant amplification and component speakers for car audio.
The JL Audio 13TW5v2 - 13.5 In Subwoofer uses Thin-Line technology to compress the architecture using a “concentric tube” structure that supports the 7-inch diameter voice coil and the suspension attachments....