W12K9D4 12 + RSQ12S Sealed Enclosure Bundle
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Rockville
W12K9D4 12 + RSQ12S Sealed Enclosure Bundle
W12K9D4 12 + RSQ12S Sealed Enclosure Bundle
12" Dual 4-Ohm Sub, 0.75 cu ft Sealed Box, Wire Kit, Hardware
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Regular price
$197.90
Sale price
$197.90
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$0.00
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Features
- 1000W RMS K9 Series 12" sub
- 0.75 cu ft sealed MDF enclosure
- Upgraded cooling and PP dustcap
- Gold spring terminals for clean wiring
- Includes wire, screws, spades
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What's Included in the box
- W12K9D4 12" Dual 4-Ohm Subwoofer
- RSQ12S Single 12" Sealed Enclosure (0.75 cu ft)
- (10) Wood Screws
- 12' 14 AWG Speaker Wire
- (2) Spade Terminals
SKU: SKU: W12K9D4+RSQ12S+K1
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Product Description
Craft a premium low‑frequency layer with a high‑power 12" K9 V3 and a compact sealed cabinet. Thermal upgrades keep the voice coil cooler for sustained clarity, while the sealed design sharpens transients for engaging, musical bass. With included wiring and hardware, installation is streamlined and refined.
This Bundle Includes

W12K9D4
The Rockville W12K9D4 12" subwoofer delivers powerful, clear bass with a 1000W RMS rating and advanced cooling. Its ultra-stiff cone and robust build suit both daily use and high-output systems, adapting easily to sealed or ported enclosures for a premium, immersive audio experience in any vehicle.
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RSQ12S
The RSQ12S single 12" sealed enclosure delivers powerful, distortion-free bass with USA-made ¾” MDF and gold terminals. Precision craftsmanship and robust construction ensure lasting performance, while its compact size fits a variety of setups. Perfect for those seeking premium sound quality and a sophisticated, durable subwoofer solution.
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K1
The K1 Single Subwoofer Enclosure Kit brings together premium 14 AWG speaker wire, expertly selected screws, and secure spade terminals for a flawless installation. Designed for home, studio, or car audio, this kit guarantees a clean, powerful connection and a sophisticated setup for true audio enthusiasts.
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Features
High-Power Musicality
1000W RMS capability and a stiff, ultra‑stable cone deliver profound lows with composure.
Sealed Precision
0.75 cu ft enclosure provides tight, accurate response that complements factory and aftermarket speakers.
Cooling Confidence
Inner dustcap and optimized venting reduce heat build‑up for consistent performance.
Premium Connections
Gold spring terminals and 14 AWG cable support low‑loss current flow for clean output.
Installation Made Easy
Included screws and spades help ensure a secure, professional‑looking finish.

Technical Specifications
- Type Single 12" Subwoofer + Sealed Enclosure Bundle
- Impedance Dual 4-ohm voice coils (sub)
- RMS Power Handling 1000 W (sub)
- Enclosure Volume (net) 0.75 cu ft sealed
- Cutout Diameter 11.13 in (sub)
- Mounting Depth 6.85 in (sub) / up to 11 in (box)
- Weight Sub 28.67 lb (approx)
- Dimensions (Enclosure) 13.5" L x 10.5" W x 13.5" H