Specifications New AA12A High Performance Car Subwoofers 500 Watts RMS per pair / 1000 Watts Max per pair 4 Ohm Impedance 93dB Sensitivity 12" Reinforced Polypropylene Injected Cones for Higher Rigidity and Durability Grey Triple Treated Butyl Rubber Surrounds for Higher Excursion Levels without Sacrificing Accuracy 60oz Over-sized Single Stacked Magnet Structures 2" High Temperature Kapton Voice Coils ASV Copper Wound Voice Coil Formers Dual Laminated Cotton Spiders for Extended Cone Control Vented Bumped Back Plates for Advanced Heat Dispersion Black Stamped Steel Baskets for Strength and Stability Chrome Plated Binding Terminals for Maximum Signal Transfer Moisture Resistant Component Treatment Overall Size: 12" Fits Hole Size: 11" Mounting Depth: 4.75" This Listing and Price is for 1 Pair / 2 Subwoofers