MRW8 | 8" 500 Watt Max Marine Grade Subwoofer (2) from $199.95 $279.95 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Dual 4 Ohm Configuration Peak Power: 500 Watts RMS Power: 250 Watts Sensitivity: 84.8dB Frequency Response: 31Hz - 300Hz 2" High Temperature Voice Coil High Flux Ferrite Magnet System Carbon Fiber Cone Anti-Corrosive Aluminum Basket Mounting Dimensions: Outside Diameter: 8.50" Cut-Out Diameter: 7.28" Depth: 4.41"