18" Pro Audio Sub Woofer Speaker - Model #: San Andreas, Type: 18" Woofer/Speaker, Power RMS: 500 Watts, Power Peak: 1000 Watts, Frequency Response: 35Hz-2K Hz, Sensitivity: 100 db., Magnet: 120 oz., Voice Coil: 4", Impedance: 8 Ohm, Die Cast Aluminum Chassis, Paper cone, Cloth Edge, Weight: 30 lbs. each, This driver is brand new., One year warranty , Listing is for one driver. You will receive one woofer pictured and described above. Each woofer has the specs listed above. These produce an awesome tone, with great lows that add that extra boom., Uses include, but are not limited to:, Build your own speaker cabinets, Replace old woofers.