Creating great sounding bass is not that difficult when the available space in the vehicle is generous and you use high quality drivers. When space is limited (like in stealthy custom installations or behind the seats of a truck or sports car), achieving excellent low frequency performance becomes far more challenging.
One way to deal with this is to use small subwoofer drivers, like our 6.5-inch or 8-inch models, but if the goal is higher output bass than the small drivers can comfortably deliver, a more potent solution is needed.
This is precisely where the new TW5 subwoofers slot into the lineup, offering groundbreaking performance in the tightest space applications. The patented thin-line woofer technology compresses the architecture of the woofer to make it all happen. Central to the technology is the “concentric tube” structure that supports the oversized voice coil and the suspension attachments. This permits placing the motor of the woofer much further forward in the speaker than with conventional designs, while maintaining excellent linear excursion capability.
Equally important is the fact that the TW5 designs are optimized for extremely small box volume applications. Whereas a typical “small-box” 12-inch driver operates in well over one cubic foot, the 12TW5 needs only 0.63 cubic feet to achieve optimum in-car performance, while the larger 13TW5 is optimum in only 0.80 cu.ft. (significantly less volume than any other JL Audio 13.5-inch woofer).
To counteract the efficiency tradeoff of small box volumes, the TW5's are designed to handle very high power levels thanks to the use of very large voice coils (7-inch and 5.5-inch diameter).

So, if you're looking for premium subwoofer performance in the tightest spaces, you have not only found the shallowest automotive subwoofers on the market, but also the most capable.
American ingenuity is alive and well.

• Extremely Shallow Mounting Depth (2.5 inches)
• Extremely Small Sealed Enclosure Volume Requirements
• Patented “Concentric Tube” Suspension Design
• Patented “Floating Cone Attach Method” Technology
• DMA-Optimized Motor Designs
• Very Large Diameter Voice Coil
• Long Linear Excursion Capability
• High Power Handling
• Cast Alloy, Tab-Ear Frame
• Injection Molded, Mica-Filled Polypropylene Cone with Santoprene Surround
• Precision-built in USA at JL Audio’s Miramar, Florida factory