• 15";• 3,000W max;• 1,700W RMS;• Blue, cast aluminum basket with diamond-cut accents;• Chrome back plate;• 2.5" dual 4ohm voice coils;• Overcompensating motor structure for increased magnetic strength;• 12mm T-yoke & top plate improve low-frequency dynamics;• Vented T-yoke & frame reduces voice-coil heat buildup;• Die-cast aluminum heat sink dust cap absorbs voice-coil heat;• Aluminum dust cap fins dissipate heat & strengthen cone;• Nonmagnetic nonresonant die-cast aluminum frame;• 4-layer voice coil with large gauge wire increases power;• High-temperature-tolerant adhesives resist thermal failure;• Nickel-plated, 8-gauge, spring-loaded compression wire terminals;• Nontransfer spruce pulp cone & high-density polyether foam surround with UV & chemical protection;• Dual poly-cotton suspension dampens violent accelerations;• Stitched voice coil leads prevent potential damage;• Efficiency: 86.97 @ 1W/1m;• Motor volume: 373oz;• Mounting depth: 8.125";• Optimum sealed enclosure: 2 cu ft;• Optimum ported enclosure: 4 cu ft;• Includes 1-piece gasket/trim ring with concealed mounting holes; This product ships in approximately 1 days