(2) Alpine RS-W12D4 12” 600w RMS Shallow Subwoofers DVC Slim Subs+Enclosure Box

$1,469.00 $1,299.90 Save 12%
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Product Description

Package Includes:

  • (2) Alpine RS-W12D4 12” 600 Watt RMS Shallow Car Audio Subwoofer Dual 4-ohm Slim Sub
  • (1) Rockville RDSM12 Dual 12" Shallow Mount 0.56 Cu Ft Car Sub Enclosure Box
  • (1) Dual Sub Box Enclosure Installation Kit: Speaker Wire, Screws, Spade Terminals


With an ultra-shallow subwoofer design and powerful sound output, the R-Series Shallow Subwoofers give you the best of both worlds in size and sound.

Ultra-Shallow Design - Alpine's R-Series Shallow Subwoofer delivers the same fun and loud sound you've come to expect, now in a shallow subwoofer that's designed to fit in most vehicle applications.

Extreme Output - Don't let the size fool you - the enclosures feature the same motor movement (20MM of 1-way excursion) as the full-size R2-Series Subwoofers for extreme output in a shallow woofer design.

Reliable Performance - Integrated cooling fins located in the core of the subwoofer help dissipate the heat generated by the large 4-inch voil coil for enhanced cooling reliability and hours of uninterrupted playtime.


  • 12" High-Performance Shallow Bass Driver
  • Neodymium Magnet
  • Alpine Gen2 DD Linear Magnetic Circuit
  • Aluminum Dust Cap
  • Protective steel mesh grille
  • Cast Aluminum Frame



  • Mounting Depth: 3.25"
  • Power Range: 500W-600W RMS
  • Power Handling: 600W RMS / 1800W Peak
  • Frequency Response: 25Hz-100Hz
  • Magnet Weight: 10.4 oz
  • Voice Coil: 4" (100mm)


  • Net Internal Volume: 0.6 - 1.5ft3
  • External Dimensions: 18" x 15" x 6.5"
  • Gross Internal Volume: 0.65 ft3
  • Net Internal Volume: 0.60 ft3
  • F3,Fb: 35 Hz, 49 Hz
  • External Dimensions: 22" x 16" x 7"
  • Gross Internal Volume: 0.95 ft3
  • Net Internal Volume: 0.90 ft3
  • F3,Fb: 30.5 Hz, 43 Hz
  • External Dimensions: 21" x 16" x 9"
  • Gross Internal Volume: 1.25 ft3
  • Net Internal Volume: 1.20 ft3
  • F3, Fb: 29 Hz, 40 Hz
  • Displacement Volume: 0.05ft3
  • Hole Cutout Size: 11-5/8" (295 mm)


  • Sensitivity (1W/1m):81 dB
  • DC Resistance (Re): 3.6? + 3.6?
  • Free Air Resonance (Fs): 29 Hz
  • Equivalent Stiffness: 43.84 L
  • Mechanical Q (Qms): 7.04
  • Electrical Q(Qes): 1.17
  • Total Q(Qts): 1.49
  • Cone Area (Sd): 572 cm2
  • Linear Excursion (Xmax): 20 mm
  • Mechanical Travel(Xmech): 54 mm


The RDSM12 dual sealed speaker box is made in the USA with Grade "A" 5/8" MDF wood. This enclosure is made with precision cutting machinery by industry experts that have been making these enclosures in the USA for over 20 years. The reason we made these with 5/8" MDF is because we needed to keep the mounting depth as shallow as possible. This uses the best grade "A" wood, and the 5/8" MDF sounds amazing. All Rockville enclosures come with a customized enhanced glue that is unmatched by any other manufacturer. That means that the carpet will stay in place and not rip or tear. The USA MDF is much stronger then any type of import wood. This will keep your box performing at an optimal level by not flexing and distorting your woofers. Your woofers will thank you! EVERY Rockville enclosure is not only glued at all joints but stapled as well. If that wasn't enough we add a layer of silicon to every seam! This makes your Rockville enclosure rock even more!



  • Rockville RDSM12 Dual 12" Shallow Mount Sealed Subwoofer Enclosure
  • Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs!
  • 5/8" USA Heavy Duty MDF Construction
  • Machine precision cut mounting holes
  • Top of the line Glue for extra durable adhesion
  • Designed, tested, and engineered to work with most of today's popular woofers. These enclosures are built with the quality additives needed to maximize the performance of any sound system.

Enclosure Measurements:

  • Type of Enclosure: Sealed Shallow Mount
  • Enclosure Sub Size: Dual 12"
  • Dimensions in Inches: 5.25" L x 36" W x 13 H"
  • Top and Bottom Depth: 5.25"
  • Mounting Depth: up to 4.625"
  • Gross Volume Per Sub (Measurement for the outer dimensions of the box): 0.77 Cubic Feet
  • Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 0.56 Cubic Feet

About Rockville Quality Control Procedures:

The Rockville brand stands for Quality, Innovation and Value. All Rockville products go through the most rigorous quality control standards in the industry. Products go through months of extensive testing before they reach your hands. All user functions are tested and all internal components are tested for quality. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to test every concept model for weeks or months before starting production. Once production begins, Rockville sends product engineers to their factory to quality control every line of production. During production every product is tested and on top of that Rockville goes the extra mile and has their high level product engineers do an additional quality control. They test a certain percentage of all products from the production line a second time to ensure that the quality meets their vigorous standards, and to make sure that there is never a batch of products with even a slight problem. All Rockville sub enclosures are backed with a full 90 day warranty, though it is unlikely that you will need to use it.

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.

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