Rockville
W12K9D4
W12K9D4
12" 1000W RMS Dual 4-Ohm Car Subwoofer, Black
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Features
- 12" dual 4-ohm subwoofer delivers 1000W RMS power
- Ultra-stiff cone and polypropylene dust cap for clear bass
- Advanced cooling system keeps performance consistent
- Fits sealed or ported enclosures for flexible installation
- Includes custom mounting gasket and binding post terminals
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What's Included in the box
- Rockville W12K9D4 V3 12" Dual 4-Ohm Car Subwoofer
- Custom Mounting Gasket
- Chrome-Plated Binding Post Terminals
- Rubber Boot Magnet Cover
SKU: SKU: W12K9D4
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Product Description


Engineered for Powerful Bass

Performance-Driven Features

Adaptable for Any Setup

Distinctive Design and Durability

Upgrade Your Drive
Features
Deep, Resonant Bass
1000W RMS power and an ultra-stiff cone deliver powerful lows for premium listening.
Advanced Cooling System
Upgraded dust cap, inner dust cap, and voice coil spacer keep the subwoofer cool during bass sessions.
Durable, High-Quality Build
Cast aluminum basket, double-stacked magnet, and Nomex spider provide strength, reliability, and a lighter weight.
Flexible Installation
Compatible with sealed or ported enclosures, with a custom mounting gasket for a secure, air-tight fit.
Striking Visual Appeal
Black sanded finish, red stitching, and custom rubber boot magnet cover create a sophisticated, modern look.

Technical Specifications
- Type of Product 12" Dual 4-Ohm Car Subwoofer
- Peak Power Handling 4000 Watts
- Program Power Handling 2000 Watts
- RMS Power Handling 1000 Watts
- Cone Material Ultra-Stiff Non-Pressed Paper
- Dustcap Material Polypropylene (Punisher Series)
- Voice Coil 3" 4-Layer Black Aluminum, OFC Wire, Made in USA
- Magnet Double Stacked 190 Oz
- Basket Cast Aluminum, Black Sanded Finish
- Terminals Chrome-Plated Binding Posts
- Surround Thick Foam
- Spider Nomex
- Impedance Dual 4-Ohm Voice Coils
- Frequency Response 33 Hz – 1.5 kHz
- Sensitivity 83dB
- Cutout Diameter 11.13"
- Mounting Depth 6.85"
- Sealed Enclosure Volume 0.9 – 1.47 cu ft
- Ported Enclosure Volume 1.8 – 2.75 cu ft
- XMAX 28mm
- Weight 28.67 lb
- Dimensions 14.57" x 14.57" x 10.83"
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Support
Impedance Vs Frequency
K9 SUBWOOFERS REAL WORLD TESTS & EXPLANATIONS
WIRING for 1 DVC 4 OHM SUBS
WIRING for 2 DVC 4 OHM SUBS