10TW3-D4 10-Inch Thin-Line Subwoofer Driver

The JL Audio 10TW3-D4 is a 10-inch (250 mm) thin-line subwoofer driver engineered to deliver deep, powerful, and accurate bass while occupying minimal space. Building on the technology of their TW5 series, the TW3 drivers provide a compelling combination of shallow mounting depth and impressive excursion capabilities, exceeding that of previous W3v3 models. This shallow-mount design is achieved through JL Audio's patented "concentric tube" architecture. This innovative structure, integrated into the injection-molded, mica-filled polypropylene cone, supports the voice coil and a full annular spider. This allows the large motor structure to be positioned further forward within the driver than in conventional designs, enabling a very shallow mounting depth (as little as 3.25 inches). Optimized for small enclosures, the 10TW3-D4 features a tab-ear mounting design that maximizes cone area within its footprint. The driver boasts a continuous power handling of 400W RMS, with a recommended amplifier power range of 200-400W RMS. Its construction includes a robust cast alloy frame, a rubber surround for durability, and DMA-optimized motor designs for superior performance. The absence of a pole vent also permits mounting closer to the rear wall of the enclosure. Key specifications include a nominal impedance of dual 4 ohms, a one-way linear excursion (Xmax) of 0.6 inches (15.2 mm), and an efficiency of 82.10 dB SPL (1W/1m). JL Audio recommends a very small sealed enclosure volume of 0.50 cu ft (14.16 L) for this driver, achieving an F3 of 40.09 Hz. For those seeking more output, a ported enclosure with a net internal volume of 0.60 cu ft (17 L) is also specified, yielding an F3 of 32.11 Hz. This subwoofer is precision-built in the USA with global components.