• Exceptional Performance: The DD Audio 9918C D2 Subwoofer combines cutting-edge technologies with immense power, boasting a peak power handling of 12,800 watts and a robust 3200 watts RMS, ensuring exceptional bass performance for your audio system.
• Advanced Engineering: Featuring an aluminum Dual Stage rear-mounted Heatsink, USA-made Iron Cloth Spider System, 2nd generation V-ROM surround, and more, this subwoofer is engineered to redefine performance standards, delivering powerful and precise bass reproduction.
• Supercharged Motor Design: The 9900 motor throws nearly 9000 gauss through a 30mm deep gap, driving the 8-layer coil to 40mm of one-way travel with exceptional coil control and excursion, resulting in outstanding bass response and clarity.
• Durable Construction: Built to last, the subwoofer features non-pressed carbon fiber loaded pulp cones, laminated tinsel leads, a hand-laid composite dust cap, and an embossed DDesign magnet boot, ensuring durability and reliability even under extreme conditions.
• Made in the USA: Handmade in the USA with meticulous attention to detail, this subwoofer boasts the audibly distinguishable quality of American craftsmanship, making it a premium choice for audiophiles and car audio enthusiasts.

DD Audio 18" Subwoofer Dual-2-Ohm 12800 Watts Peak DD-SB-9918C-D2

This Listing Includes:

• (1) DD Audio SB-9918C-D2 Subwoofer.

The 9900C combines the performance redefining technologies such as the aluminum Dual Stage rear mounted Heatsink, USA Made Iron Cloth Spider System, 2nd generation V-ROM surround, and more with the immense power of DD's largest ferrite motor subwoofer series, optimized for a 3200 Watt RMS and the ability to handle power bursts well over 12,000 watts.

Features

• NEW Aluminum 2 Stage Motor Heatsink


• 260mm Magnet Diameter


• Multi-Vent Free Flow Cooling Motor


• Shorting Ring Motor


• 4.3" High-Temp Voice Coil


• Excursion Optimized ESP Frame


• V-ROM Vario-Density Surround


• Non-Pressed Composite Reinforced Pulp Cone


• 11" Dual/Triple Layer Iron Cloth Spider


• Laminated Tinsel Leads


• Hand Laid Composite Dust Cap


• Embossed DDesign Magnet Boot


• Made In USA

Technical Specifications:

• Speaker Size (In): 18


• Watts RMS: 3200


• Watts Peak: 12800


• Impedance:  D2


• VCD (In): 4


• Piston Diameter (In): 15.5


• Fs (Hz): 26.24


• Qms: 2.265


• Qes: 0.5167


• Qts: 0.4705


• Vas (Liters): 161.9


• Xmech (MM): 60


• Xmax (MM): 22


• Frame OD (In): 18.25


• Frame OD w/Gasket (In): 18.5


• Mounting Diameter (In): 16.75


• Mounting Depth (In): 11.875


• Motor Diameter (In): 10.3125


• Motor Depth (In): 4.5625


• Woofer Displacement (CuFt): 0.46


• Ported Enclosure (CuFt): 5.0 - 6.0


• Shipping Weight (Lbs): 89