JL Audio 10TW3-D4 10-inch (250 mm) Subwoofer Driver, Dual 4 ΩTW3 10 inch Subwoofer (400 W, dual 4 voice coils) Building on the core technology of our TW5 thin line subwoofers, the TW3s deliver a powerful combination of shallow mounting depth and excursion capability. In fact, they are capable of greater excursion than the W3v3s. To allow this remarkable feat to be achieved, JL Audios patented thin line woofer technology compresses the architecture of the TW3s using a concentric tube structure built into the