JL Audio 12W0-4 Subwoofer for Sale. 12-inch (300 mm) driver with a 1.38" dia. Kapton voice coil that can handle up to 125 watts of continuous RMS power. The patented VRC system cools the voice coil and mechanically locks the critical joint between the spider, cone, and voice coil former, resulting in exceptional reliability. Used, but in good condition. C/w owner’s manual. • Nominal Diameter: 12 inches (300 mm) • Continuous Power Handling: 125 Watts • Voice Coil: 1.38" diameter, 6-layer, Kapton former • Xmax (one-way, linear): 0.34" (8.6 mm) • VRC Technology: The patented VRC system cools the voice coil and mechanically locks the critical joint between the spider, cone and voice coil former, resulting in exceptional reliability • Work well in compact enclosures • Class-leading excursion capabilities • Work in sealed, ported and even bandpass enclosures • Sensitivity: 87.6 dB • Impedance: 4 ohms (measured at 4.3 ohms) • Top-Mount Depth (Mounting Depth) : 6" • Cutout Diameter: 11" Note: More specifications can be found on picture #7