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  2. Car Audio & Electronics
  3. Car Subwoofers
  4. Car Subwoofer Boxes
  5. Car Subwoofers with a Box (Loaded Sub Boxes)
  6. Shallow-mount & Truck Boxes with Car Subwoofers
  7. Alpine RS-W12D4, 12TK

See all parts that fit your 2009 G5

Alpine RS-W12D4 with Sealed Truck Enclosure

1200W Peak (600W RMS) 12” R-Series Dual 4-Ohms Shallow Subwoofer

6
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• Peak Power: 1200 watts
• RMS Power: 600 watts
• Polypropylene with aluminum dust cap Cone
• Butyl Rubber Surround
• Impedance: Dual 4 ohm
• Sensitivity: 81 dB
• Includes Sealed Truck Enclosure

Learn more about the rsw12d4_12tk
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List price $1059.99
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Description

Alpine brand icon

Authorized dealer

Alpine RS-W12D4

1800W Peak (600W RMS) 12” R-Series Dual 4-ohm Shallow Car Subwoofer
Quantity: 1

Product Details:

  • 12" Dual 4 ohm R Series Subwoofer
  • Power Handling:
    • Peak: 1800 watts
    • RMS: 600 watts
  • Polypropylene Cone
  • Butyl Rubber Surround
  • Alpine Gen2 DD Linear Magnetic Circuit
  • 4" High Temperature Voice coil
  • 20 mm Xmax
  • 10.4 oz. Double Stacked Neodymium magnet motor structure
  • Frequency Response: 25 - 100 Hz
  • Resonance Frequency (Fs): 29 Hz
  • Sensitivity: 81 dB
  • Recommended sealed box volume: 0.6 cubic feet - 1.5 cubic feet
  • Top-mount depth: 3.22"
  • Subwoofer mesh grille: Alpine KTE-RS12G (sold separately)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

    • Priced Individually

PDF IconAlpine RSW12D4 owner’s manual

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  • Mitered edge construction provides cleaner finish
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  • Dado joints offer an 80% increase in surface area
  • Built using trick glue for up to 3600 PSI holding ability
  • Glued and braced with fasteners for added strength
  • Premium black carpeted finish for sleek modern look
  • Silver spring-loaded terminal push cups
  • Maximum subwoofer mounting depth: 4.15"
  • Subwoofer cutout diameter: 11.13"
  • Total box volume: 0.27 cubic feet
  • Dimensions: 20" L x 15-3/4" H x 5-1/4" W x 8-1/2" W2
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  • 1-year Manufacturer's Warranty
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• Final Impedance: 2-ohm
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Specifications & Details

Subwoofer Specifications
Series
Type-R Series
Subwoofer Size
12"
RMS Power Handling
600 watts
Peak Power Handling
1200 watts
Woofer Composition
Polypropylene with aluminum dust cap
Woofer Surround
Butyl Rubber
Sensitivity
81 dB
Frequency Response
27 - 200 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Sealed
Number of Subwoofers
1
Box Style/Shape
Truck Style, Slim with Angled Front
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Spring posts (banana clip ready)
Box Exterior Color
Charcoal
Box Finish
Carpet
Second Width
8.50"
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details

Manufacturer:

Alpine

Model Number:

RS-W12D4, 12TK

Weight:

34.00lbs

Internal SKU:

rsw12d4_12tk

Internal Product ID:

199777

Customer Ratings & Reviews

Alpine RS-W12D4 with Sealed Truck Enclosure thumbnail image
6
5 star
83%
4 star
17%
3 star
0%
2 star
0%
1 star
0%
Durability
5
Value
4.5
Features
5
Design
5
Usability
5

Customer Photos & Videos

Customer Reviews

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Excellent!

The following review is for 12TK, which is a part of the bundle you are viewing.

Very well built. Looks nice. Great value. Sonic shipped fast.

By DR on October 31, 2014

70 found this helpful

Report abuse

Great buy

The following review is for 12TK, which is a part of the bundle you are viewing.

Functions well with minimal space. Fits subs well built very well no crack unsealed

By Austin on March 24, 2018

33 found this helpful

Report abuse

good product

The following review is for 12TK, which is a part of the bundle you are viewing.

project nice built speaker box it's nice day in my susan Isuzu single cab will fit up 12 inch subwoofer up to 6 inches deep

By pat on January 4, 2016

33 found this helpful

Report abuse

The following review is for 12TK, which is a part of the bundle you are viewing.
By jerry on April 8, 2024 Checkmark Icon Verified purchase

8 found this helpful

Report abuse

The following review is for 12TK, which is a part of the bundle you are viewing.
By Ricky on October 17, 2025 Checkmark Icon Verified purchase

Report abuse

Do it!

The following review is for RS-W12D4, which is a part of the bundle you are viewing.

If you have a truck and want to maintain your seating and ALSO have some good music….get these subs in dual 4 ohm and get the Alpine 1500 mono, have a reputable shop build your box and enjoy. These things beat for shallow subs under my back seat. I was anxious about the money I spent, but as soon as I heard the results, all concern went away.

By lonnie on August 1, 2025 Checkmark Icon Verified purchase

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