Skar Audio EVL-65 D4 6.5" 400 Watt Max Power Dual 4 Ohm Car Subwoofer 6.5-inch Dual 4 Ohm Subwoofer Peak Power: 400 Watts | RMS Power: 200 Watts 2" Copper Voice Coil, Sensitivity (Spl): 82.8 dB Great Low End Frequency Response | Fs: 64 Hz Small & Compact Subwoofer, Hard Hitting Bass