X-15 V.3 D2

The X-15 V.3 D2 is a 15-inch high-excursion subwoofer rated 2500W RMS and 5000W peak, engineered for deep bass in a small ported box. An extended pole piece and four inches of peak-to-peak travel let it play low without running out of room, and Xmax is rated at 30mm.

The v.3 motor is a step up from the v.1: the structure grew to 220mm from 190mm, ventilation improved, and the coil is a 3" design on a triple-stacked magnet. The all-new Mega-Roll v.2 surround is a more linear and more durable version of the original Mega-Roll design, which is what keeps output clean at the excursion levels this woofer is capable of.

Suspension linearity is the real story here. The X v.3 is built to reach the lowest bass extension possible from a small enclosure while holding distortion down, so a low-tuned wall in a hatchback or a single-woofer box in a trunk both stay tight rather than muddy. If you want more low-end extension, the series also works in an enclosure up to 50 percent larger than the recommended volume.

Recommended ported volume is 4.25 cu ft with 68 sq in of port area tuned to 32Hz. A sealed enclosure is not recommended for this woofer. Mounting depth is 11.6" with a 13.83" cutout, and displacement is 0.22 cu ft.

Dual 2-ohm coils wire to a 1-ohm or 4-ohm load. These are built to order, so plan lead time into the build.