Blue Injection Molded Cone - Flat Progressive Spider - 1500 Watt Max Power Handling - Mounting Depth: 6.84"" * Non-Fatiguing Big Rubber Suspension - New Wave-Like Rubber Gasket - Impedance: 4 Ohm (Per Coil) * Blue Chrome-Plated Steel Basket - Rubber Magnet Boot - Fs:30, Qms:5.0, Qes:0.91, Qts:0.70, Vas (Cu ft)5.100 * Bumped Vented Extended Pole Piece - 2.5"" High Temperature Dual Kapton Voice Coil - SPL: 86dB * Silver Plated Terminal - Magnet Weight: 80 oz - Overall Diameter: 15.8"" * Blue Injection Molded Cone * Non-Fatiguing Big Rubber Suspension * Blue Chrome-Plated Steel Basket * Bumped Vented Extended Pole Piece * Silver Plated Terminal * Flat Progressive Spider * New Wave-Like Rubber Gasket * Rubber Magnet Boot * 2.5"" High Temperature Dual Kapton Voice Coil * Magnet Weight: 80 oz * 1500 Watt Max Power Handling * Impedance: 4 Ohm (Per Coil) * Fs:30, Qms:5.0, Qes:0.91, Qts:0.70, Vas (Cu ft)5.100 * SPL: 86dB * Overall Diameter: 15.8"" * Mounting Depth: 6.84"" * Sold as : Unit