Sundown Audio SD-Series v.4 12" Neo Subwoofer

RMS 600 watts Dual 2 or 4 ohm voice coils Optimized for small, sealed enclosures Lightweight Neodymium motor Computer-optimized foam “w” surround Two-inch 8-layer copper voice coil Large aluminum Faraday ring for smooth acoustic response Patented high strength cast aluminum frame Low distortion motor construction High-temperature voice coil wire Spring-loaded terminals Stitched-on tinsel lead wires   The SD-4 series truly is a world-class sound quality woofer with low mounting depth, small box requirements, yet extraordinarily high power handling. It's the ideal choice for anyone seeking a high-quality, low-mounting-depth subwoofer that performs hammers in small enclosures. With enhanced mechanical durability and superb sound quality, you get the perfect marriage of form and function. Specifications RE (Ohms) 3.93 7.01 FS (Hz) 26.0429 26.7489 VAS (L) 63.5142 64.3194 Qes 0.6187 0.7374 Qms 5.4253 5.5061 Qts 0.5554 0.6503 Le (mH) 6.2790 8.6610 BL (NA) 14.9216 17.9