PowerBass 1 3XL-810D 3XL Series 8" Dual 1-Ohm Subwoofer and 1 SWX-8G 8" Subwoofer Grill for 3XL-810D, 3XL-820D - This bundle includes a PowerBass 3XL-810D - 8" Dual 1-Ohm VC 500Wrms / 750Wmax, a PowerBass SWX-8G - 8" Subwoofer Grill for 3XL-810D, 3XL-820D, a pry kit, and a Creative Audio coozy. PowerBass 3XL-810D - 8" Dual 1-Ohm VC 500Wrms / 750Wmax Specifications - • Nominal Impedance: Dual 1-ohm • Subwoofer Frequency Range: 35 Hz - 450 Hz • Depth: 6.2" • Voice Coil Size: 2.5 in • Material: Pressed and Coated Pulp Paper • Sensitivity (1W / 1M): 89 dB • Spl: 89 dB • Test Impedance: 1.83-ohms • VC Impedance: 1-ohm + 1-ohm • Size: 8 in • Sensitivity: 89 dB • Frequency Response: 35 Hz - 450 Hz • Voice Coil Size: 2.5 in • Power Handling (RMS/Peak): 500 / 750 watts PowerBass SWX-8G - 8" Subwoofer Grill for 3XL-810D, 3XL-820D A speaker grill is like an insurance policy against damage to your speakers. The SWX-8G is a great and stylish way to protect your 8" 3XL Series Subwoofers. The SWX Gill installs in seconds by using the subwoofers already supplied beauty ring to hold the Uni-Body Design Mesh Grill in place with no extra hardware required. Features - • Fits 3XL Series Subwoofers • 8" Black Steel Mesh Grill • Corrosion Resistant Black Finish • Mounts with no additional hardware needed • One Piece Uni-Body Design