PowerBass PS-WB101 10" Vented Loaded Enclosure Bass is their backbone at PowerBass and their engineers have designed an affordable, yet powerful self contained solution to put a new low in the bottom end of your sound system with PS-WB loaded woofer boxes. They take a unique design approach and engineer the woofers to fit the box, not the other way around like our competition. This gives our enclosures a deeper, tighter bass that handles more power for your hard earned cash. Features - • Heavy Duty Single 10" Bass Reflex Box Design • Computer Optimized Acoustic Chamber • Bass Reflex Aero/Slot Port System • 2-Layer DDC Coated Black Ribbed Paper Cone • 2" BASV High Temperature Voice Coil • Double Pressed Treated Foam Surround • 2-Tone Aircraft Grade Vinyl Finish • Single 4-ohm Input • 250 Watts RMS/500 Watts Max Specifications - • Nominal Impedance: Single 4-ohm Input • Bottom Depth: 13.75" • Top Depth: 11.4" • Height: 12.25" • Width: 17" • Material: DDC coted paper • Sensitivity (1W / 1M): 96 dB • Dimensions (in Inches): 17" x 12.25 x 11.4" (top depth) x 13.75" (bottom depth) • Size: Single 12" • Frequency Response: 33 Hz - 150 Hz • Power Handling (RMS/Peak): 250 / 500 watts