RI Audio RI-BD15D1 15" Subwoofer — Dual 1-Ohm VC, 1000 Watt RMS / 2000 Watt Peak

Powerful 15-inch subwoofer from RI Audio, model RI-BD15D1, rated at 1000 Watts RMS and 2000 Watts peak with a dual 1-ohm voice coil arrangement. Designed for high-output low-frequency performance with robust motor and suspension components. Key features include Voice Coil Size/Material: 3 Inches/Aluminum, Voice Coil Layers: 4, and a Total Cast Aluminum Basket. The driver uses a High Rolled Foam Surround and Foam surround type for reliable excursion control, and a 200 Oz Vented Motor Magnet for strong magnetic force. Mechanical and mounting: Mounting Depth: 8 inches. Excursion and efficiency: Xmax: 52 mm and Sensitivity: 85 dB. Electrical: Re: 1+1 Ohms. Thiele/Small and physical parameters: B1: 25.2 N. A, Fs: 36 Hz, Sd: 755.3 Cm2, Cms: 0.056 M/N, Mms: 365.5g, Qes: 0.7, Qms: 3.4, Qts: 0.55, Vas: 51 L. This subwoofer combines a vented motor design and heavy-duty construction for deep, controlled bass suitable for high-power car audio systems.