1000 Watt RMS/ 2000 Watt Peak Dual 2 or 4 ohm voice coils Optimized for small ported, sealed, & band-pass enclosures Large aluminum Faraday ring for smooth acoustic response High strength cast aluminum frame Low distortion motor construction High-temperature voice coil wire Spring-loaded terminals Stitched-on “XL” tinsel lead wires The SA Classic sub is the perfect combination of power handling and deep excursion. A cast aluminum frame houses a bulletproof custom 2.5-inch voice coil, robust double-layered Nomex spider, and SPL competition-grade paper cone, all built into a flexible design that works in any kind of enclosure. Enclosure Designs .Zip File