Technical Specification{for the PAIR} Sensitivity: 86 dB RMS Power Range : 800 Watts Peak Power Handling: 1600 Watts Impedance: Dual 4 Ohm Low Frequency response: 25 Hz High Frequency Response: 250 Hz Diameter: 12 Inch Features Textured Copolymer Cone with Aluminum Dust Cap Nitrile Butadine Rubber (NBR) Surround Heavy Gauge Stamped Steel Basket Integrated Tinsel Leads Venturi Vented Basket Vented Pole Piece Double Stacked Ferrite Magnet Optimized Spider with Balanced Linear Suspension 2.5" Voice Coils