KFC-XW1221HP12" Subwoofer (2Ω) Peak Power 2000W PP Dual Area Cone Closed Yoke with Advanced Airflow Control Stress Controlled Spider Robust Thermal Management System PP Dual Area ConeThis gives its diaphragm the rigidity required for higher power handling and delivers more accurate bass.Closed Yoke with Advanced Airflow ControlThe KFC-XW1221HP has a robust thermal management system, implemented with an Aluminum Bobbin, Closed Yoke Design, and Advanced Airflow Control.Stress Controlled SpiderComputer-optimized damper controls stress and increases mechanical durability.The Best MatchKFC-XR1221HP "High Performance" Class Subwoofer is precisely power matched with the eXcelon X502-1 amplifier.SPECIFICATIONS ELECTRICAL Impedance (Ω) 2 Peak Input Power (W) 2000 RMS Power (W) 500 Sensitivity (dB at 1m) 81 Frequency Response (Hz) 25 ~ 300 MOUNTED SPEAKER Size 300mm 12 inch Diaphragm Paper Cap Injection PP Surround Rubber Basket Steel Gasket ABS Magnet Ferrite φ155-φ75-t32 DIMENSION Width 326mm 12 - 13/16 inch Height 326mm 12 - 13/16 inch Cut-out Diameter 279mm 11 inch Depth 165.8mm 6 - 1/2 inch Mounting Depth 147mm 5 - 13/16 inch WEIGHT Woofer without Gasket 6.4 kg 14.1 lb Gross Weight 7.4 kg 16.3 lb Weight of Magnet 2340 g 82.4 oz ACCESSORY Tapping Screw Φ4 x 35, 8pcs Polyethylene Foam 1000 x 13 mm Instruction Manual Warranty Card SPECIAL FEATURE Injection PP Dual Area Cone Closed Yoke with Advanced Airflow Control Aluminum Bobbin