DS18 ZXI 12" Woofer, 1000W RMS/2000W Max, Dual 2 Ohm Voice Coils 2000 Watts Max 1000 Watts RMS Mounting Depth: 7.6" High Excursion: 32mm (1-Way) Large Foam Surround Black Aluminum Cast Basket 3" Black Aluminum CCAW Voice Coil 2 Layer Conex Spider Dual 2 Ohm Voice Coils Sensitivity: 89.2 dB Frequency Response: 15 Hz - 1.7 KHz Non-Pressed Cone PPI Dust Cap (4) 56 oz. Ferrite Magnets (224 oz. Total) Recommended Lo Pass Crossover: 90 Hz Sold Individually