W8K9D4 2-Pack
Rockville
W8K9D4 2-Pack
W8K9D4 2-Pack
2-Pack 8" 500W RMS Dual 4-Ohm Car Subwoofer, Black
Free Shipping
Features
- 2000W peak power delivers deep, powerful bass
- Ultra-stiff cone and thick foam surround for clear sound
- Fits sealed or vented enclosures for flexible installation
- Cast aluminum basket and chrome terminals for premium build
- Includes custom mounting gasket and rubber boot magnet cover
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SKU: SKU: (2) W8K9D4
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Product Description
Features
Powerful Bass Performance
2000W peak power and a 2.5" 4-layer ASV voice coil deliver deep, resonant lows for immersive car audio.
Durable Construction
Ultra-stiff cone, thick foam surround, and reinforced stitching provide long-lasting performance and reliability.
Flexible Installation
Compatible with sealed or vented enclosures, the included mounting gasket ensures an air-tight, secure fit.
Premium Components
Cast aluminum basket, double-stacked magnet, and chrome-plated terminals offer superior build quality and efficient power handling.
Sophisticated Aesthetics
Black sanded finish and custom rubber boot magnet cover add a refined, modern look to your audio system.

Technical Specifications
- Type of Product 8" Dual 4-Ohm Car Subwoofer
- Peak Power Handling 2000 Watts
- Program Power Handling 1000 Watts
- CEA Rated RMS Power Handling 500 Watts
- Voice Coil 2.5" 4-Layer ASV (OFC Wire, Made in USA)
- Magnet Double Stacked 122 Oz
- Basket Cast Aluminum, Black Sanded Finish
- Terminals Two Chrome-Plated Binding Posts
- Cone Black Non-Pressed Paper, Ultra-Stiff
- Surround Thick Foam
- Dustcap Ultra-Stiff Polypropylene (PP)
- Impedance Dual 4-Ohm Voice Coils
- Vented Hole On T-yoke for Heat Dissipation
- Mounting Gasket Custom Rockville, Air-Tight Fit
- Magnetic Motor Gap High BL
- Spider Poly Cotton, High Elasticity
- Cutout Diameter 7.32"
- Mounting Depth 5.91"
- Frequency Response 48Hz - 800Hz
- T-Yoke + Washer 10mm + 10mm
- Sensitivity 81.2dB
- Sealed Enclosure Volume 0.28-0.42 Cubic Feet
- Vented Enclosure Volume 0.64-0.92 Cubic Feet
- 1-Way XMAX 10mm
- Weight 18.74 lb
- Shipping Box Dimensions 11.42" x 11.42" x 11.81"
Support
Impedance Vs Frequency
K9 SUBWOOFERS REAL WORLD TESTS & EXPLANATIONS