JL Audio 12TW3-D4 - 12" Inch 400 Watts TW3 Dual 4 Ohm Car Sub SubwooferJL Audio 12TW3 D4 12" Inch 30cm 400 Watts Dual 4 Ohms Car Sub Subwoofer JL12TW3 Building on the core technology of our TW5 thin line subwoofers, the new 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