ROCKVILLE

Rockville W12K9D4 12" 4000w Car Audio Subwoofer Dual 4-Ohm Sub CEA Compliant

$114.95

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Features: Rockville W12K9D4 K9 Series 12" Dual 4-Ohm Car Subwoofer Peak Power Handling: 4000 Watts Program Power Handling: 2000 Watts CEA Rated RMS Power Handling: 1000 Watts 3" 4-Layer Black Aluminum Voice Coils Wound with OFC (100% Copper) Wire Made in Japan The CCAW Wire we use is made in Japan. It is one of the most important components to make the sub high quality and last longer. (Most subs on the market use wire made in China which can not handle nearly as high temperatures as our wire that is made in Japan) Double Stacked 190 Oz High Quality Magnet Cast Aluminum Basket With Black Sanded Finish Makes This Sub Very Efficient And Lighter Weight Black Non-Pressed Paper Cone With Beautiful Finish Our cones are ultra-stiff. They are thicker and stronger than other subs on the market making our subs able to handle more power. Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion Red Stitching Cone Reinforcement Ensures Long Life Polypropylene (PP) Dustcap Impedance: Dual 4-Ohm Voice Coils Vented Hole on T-yoke Enhances Heat Dissipation Special Custom Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet Custom Rockville Mounting Gasket Looks Beautiful and Makes it Easy To Mount the Subwoofer Air-Tight High BL Magnetic Motor Gap We use the highest grade black glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated Nomex Spider provides tear resistance, strength and long-term reliability over regular cotton and poly cotton spiders Cutout Diameter: 11.13” inches Mounting Depth: 6.85” inches Frequency Response: 33 Hz - 1.5K kHz 10mm T-Yoke + 10mm Washer Sensitivity: 83dB Sealed Enclosure Volume: 0.8 - 1.25 Cubic Feet Vented/Ported Enclosure Volume: 1.75 - 3.0 Cubic Feet Weight: 28.67 Lbs. Shipping Weight: 33 Lbs. Shipping Box Dimensions: 14.57" x 14.57" x 10.83" Inches TS Parameters: Fms: 35.7 Hz Res: 89.4 Ohm Re: 7.6 Ohm Qms: 4.60 Qes: 0.61 Qts: 0.54 Rms: 11.8kg/s Cms: 0.08mm/N Mms: 242.4 gr Nref: 0.22% Bl: 26.1N/A SPL: 85.3dB VAS: 30.0 L Rp: 53.7 Ohm LP: 48.8mH CP: 499.5uF Le: 3.28mH

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