Rockville RVP15W8 1000 Watt 15" Raw DJ Subwoofer 8 Ohm Sub Woofer 51OZ Magnet Rockville RVP15W8 15" 1000 Watt Raw Replacement Subwoofer. Power RMS: 500 Watts. Peak Power: 1000 Watts. Fiber Reinforced Ultra Stiff Paper Composite Cone. Paper Composite Dust Cap. Expanded and Rolled Steel Basket. Accordion Cloth Surround. Ultra Saturated, High BL Magnetic Motor Gap. 2.5" High Temperature CCAW High SPL Voice Coil. Linear Progressive Conex Spiders. Dual Nickel Plated Banana Plug Terminals. Impedance: 8 Ohms. 51 oz Magnet. Mounting Depth: 5.7" inches. Frequency Response: 25 Hz to 1.5 KHz. Sensitivity: 100dB @ 1w/1m. REVC: 6.8 Ohm. FO: 42.490 Hz. SD: 855.300 sqCM. BL: 13.989 TM. QMS: 6.266. QES: 0.892. QTS: 0.781. NO: 1.260%. SPLO: 100 dB. VAS: 151.556 Ltr. CMS: 145.897 uM/N. KRM: 4.647 m Ohm. ERM: 0.832. MMS: 96.166 g. MMD: 81.783 g. KXM: 38.000 m Ohm. EXM: 0.6.