12" Steel Frame Replacement Speaker - Model #: Seismic Audio - Quake 12, Type: 12" Woofer/Speaker, Power RMS: 150 Watts, Power Peak: 300 Watts, Frequency Response: 55-5K Hz, Sensitivity: 97 db., Magnet: 50 ounce, Voice Coil: 2.5", Impedance: 4 Ohm, Pressed Steel Chassis, Paper cone, Weight: 10 lbs. each, These speakers are brand new., One year warranty , You will receive 1 speaker pictured and described above. Each woofer has the specs listed above. These produce an awesome tone, with great lows and clear, clean highs., Uses include, but are not limited to: Build your own speaker cabinet Replace old woofer . .