PowerBass 2XL-1040D 10" Subwoofer PowerBass's new 2XL Subwoofers have been completely redesigned with a new custom cast aluminum basket and inverted motor to fit better in tight spaces and work in small sealed or ported enclosures, the 2XL Subwoofer series allows for audiophile sound quality at extreme sound levels. Featuring a new NBR Nitrile Butadiene Rubber surround for increased linear accuracy and a proprietary Woven Glass Fiber Kraft Reinforced cone the 2XL series is built to perform. The custom cast aluminum basket provides perimeter venting to assist in cooling the newly redesigned 2.5” Black Kapton (BKSV) voice coil and inverted motor structure. Features - • New PBX logo dust cap • 10" Dual 4-Ohm Subwoofer • 400 watt RMS/800 Watts Max • Woven Glass Fiber Cone With Pressed Kraft Paper Reinforcement • Nitrile Butadiene Rubber (NBR) Surround • 2.5" Vented BKSV Voice Coil Former • Perimeter Aero-Vent Voice Coil Cooling Vents • Non Resonance DDC Coated Cast Aluminum Basket • XTRA XTRA Large Double Stacked Motor Structures • Square Spring Loaded Nickel Plated Input Terminals • Optimally Designed for Both Small Sealed or Ported Enclosures • Compact Design Specifications - • Nominal Impedance: Dual 4-ohm • BL: 11.32 • Inputs: Dual Coil • Subwoofer Frequency Range: 35 Hz - 500 Hz • Voice Coil Size: 2.5 in • Material: Woven Glass Fiber and Kraft Paper • Magnet Size: 80 oz • Sensitivity (1W / 1M): 85.1 dB • Motor Structure: 80 oz • Cutout Diameter: 9.0" • Mounting Depth: 4.75 in • Xmax: 11.5 • Spl: 85.16 • No: 0.15% • Qts: 0.42 • Qes: 0.45 • Qms: 6.42 • Mms: 201.33 g • Cms: 135 uM/N • Vas: 25.47 Ltr • SD: 343.05 • Fs: 30.4 Hz • Test Impedance: 1.52-ohm • VC Impedance: 4-ohm + 4-ohm • Size: 10 in • Sensitivity: 85 dB • Frequency Response: 35 Hz -500 Hz • Voice Coil Size: 2.5 in • Power Handling (RMS/Peak): 400 / 800 watts