(2) Alpine S-W12D4 12" 1800 Watt Subwoofers+Vented Sub Enclosure Box w/Bed Liner

$589.98 $399.90 Save 32% Sold out
Shipping calculated at checkout.
Product Description
Package Includes:
  • (2) Alpine S-W12D4 12" 1800 Watt Dual 4-Ohm Car Audio Subwoofer Sub Type-S SW12D4
  • (1) Rockville Dual 12" 1.5 cu. ft. Vented Subwoofer Sub Box Enclosure w/Bed Liner
  • (1) Dual Sub Box Enclosure Installation Kit: Speaker Wire, Screws, Spade Terminals


The S-Series subwoofers are designed with increased bass output and installation versatility.

Versatile Applications
Along with the new 8” woofer, the 10” and 12” S-Series subwoofers have been re-designed from the ground up. The mounting depth of the 10” and 12” subwoofers are almost 1” more shallow than previous models at just over 4.5” for the 10” models and just over 5” for the 12” models, allowing them to fit into a wide variety of installation applications.

600W Power Handling
The 10” and 12” S-Series subwoofers are engineered with an improved voice coil allowing the woofer to benefit from an increased power rating of 600 watts. Match them with the powerful VPower MRV-M500 mono amplifier for a great subwoofer system.

Custom-Stamped Steel Frame
Each S-Series subwoofer uses a custom - stamped steel frame. These high-strength frames were designed to withstand the rigors of the im proved S-Series motor. They have frame leg vents as well as a vented back plate to help cool the subwoofer voice coil and motor parts, plus a shallow design to help fit in smaller spaces.

Push-Type Insert Terminals With Dual Voice Coil Jumper System
The push-type insert terminals help reduce the installation time of the S -Series subwoofers.Just strip the speaker insulation at the wire end, then insert the bare wire into the hole of the spring-loaded push terminal.

Strontium Ferrite Double-Stacked Magnets
The S-Series subwoofers use two strontium ferrite magnets stacked together, for increased motor strength and excursion which ultimately leads to more bass output.

Clean, Concealed Mount Gasket System
The S-Series subwoofers have concealed mount gaskets, creating a clean, finished appearance for any vehicle.


  • 12" Dual Voice Coil (4 Ohm) High Performance Subwoofers
  • Max RMS Power Capacity: 600W RMS
  • Peak Power Capacity: 1800W Peak Power
  • 12” 2O+2O Subwoofer
  • Power Handling: 600W – 1800W
  • High Strength Custom Steel Frame
  • Great complement to V-Power Amplifiers
  • Frequency Response: 26Hz-200Hz
  • Mounting Depth 5-1/16”
  • Recommended Sealed Box: 0.85 cubic foot (gross volume)
  • Recommended Vented Box: 1.71 cubic foot (gross volume), 12.5” x 1” vent area, 16” vent length

Recommended enclosure Specifications:

  • Minimum Sealed Box Volume 0.55 cubic feet
  • Maximum Sealed Box Volume 1.0 cubic feet
  • Minimum Ported Box Volume 1.0 cubic feet
  • Maximum Ported Box Volume 1.5 cubic feet
  • Cutout Diameter 10-9/16"


  • Rockville Dual 12" 1.5 cu. ft. Vented Subwoofer Sub Box Enclosure w/Bed Liner
  • 2hole 12" Vented
  • Finished with Durable Bed Liner
  • 3/4" MDF
  • High Quality Spring Loaded Terminals
  • Air Space: 1.5 Cubic Feet (per sub)
  • Height: 13.25"
  • Width: 32"
  • Depth: 14"
  • Tuning Frequency: 40Hz

Complete Dual Subwoofer Enclosure Installation Kit!


  • 20 Drywall Wood Screws (Wood screws are the type of screws; the screws are actually made of metal)
  • 20 Feet of 14 AWG Blue Speaker Wire
  • 4 Spade Terminals

This accessory package includes everything you need to install two subwoofers into an enclosure, and wire your enclosure to your amplifier. This package is a top of the line accessory package which we put together and tested.

The drywall wood screws were hand selected by our installation experts because they drill into the enclosure very cleanly, without chipping the enclosure. The speaker wire is 14 gauge. This is way better than using 16 gauge. You can be 100 % sure that your enclosure will have a clean signal to the amplifier with this top of the line speaker wire. These spade terminals have also been hand selected by our installation experts to make the internal wiring simple, secure, and to run the audio signal cleanly.

Shipping & Returns

Row content