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Alpine R2-W12D4 with Sealed Enclosure

2250W Peak (750W RMS) 12" 750W R-Series Dual 4-Ohm Car Subwoofer

Alpine
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• Peak Power: 2250 watts
• RMS Power: 750 watts
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (H.A.M.R) Surround
• Impedance: Dual 4 ohm
• Sensitivity: 84.6 dB
• Includes Sealed Enclosure

Learn more about the r2w12d4_mdfs12
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List price $609.99
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$359.95

 with warranty
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Current Promotions (1 offer)


Get the most out of your Loaded Enclosure with the NVX SDTK20. Eliminates road noise, quiet vibrations, and increase the sound quality and output of audio system, 50%. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

Alpine R2-W12D4 with Sealed Enclosure

40% off


Priced separately $409 94

Promo Savings of $20 00

Total price:

$389 94

Description


Alpine brand icon

Authorized dealer

Alpine R2-W12D4

2250W Peak (750W RMS) 12" R2-Series Dual 4-ohm Car Subwoofer
Quantity: 1

Product Details:

  • 12" Dual 4 ohm R2 Series Subwoofer
  • Power Handling:
    • Peak: 2250 watts
    • RMS: 750 watts
  • Kevlar Reinforced Pulp Paper Cone
  • High-Amplitude Multi-Roll (HAMR) Surround
  • 2.6" High Temperature Voice coil
  • 20 mm Xmax
  • 144 oz. Double Stacked magnet motor structure
  • Frequency Response: 24 - 200 Hz
  • Resonance Frequency (Fs): 30 Hz
  • Sensitivity: 84.6 dB
  • Recommended sealed box volume: .55 cubic feet - 1.0 cubic feet
  • Recommended ported box volume: 1.0 cubic feet - 1.5 cubic feet
  • Top-mount depth: 6.43"
  • Cutout diameter: 10.83"
  • Authorized Internet Dealer
  • Subwoofer grille Alpine KTE-12G optional (sold separately)
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconAlpine R2W12D4 owner’s manual

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (1.0 cu ft airspace 12SQTC)
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General Features:

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  • Internal box volume: 1.0 cubic ft
  • High Quality 3/4" MDF Construction
  • Durable black carpeting
  • Pre-lined with Poly-Fil
  • Seams are fully caulked for better efficiency
  • Gold post terminals for clean and easy wiring access
  • Box Dimensions: 14-1/4"L x 14-1/4"D x 14-1/4"H
  • 30 Day return policy

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Specifications & Details


Subwoofer Specifications
Series
Type-R Series
Subwoofer Size
12"
RMS Power Handling
750 watts
Peak Power Handling
2250 watts
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
High-Amplitude Multi-Roll (H.A.M.R)
Sensitivity
84.6 dB
Frequency Response
24 - 200 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Sealed
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Binding posts (banana clip ready)
Box Exterior Color
Black
Box Finish
Carpet
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

R2-W12D4, MDFS12

Weight:

50.00lbs

Internal SKU:

r2w12d4_mdfs12

Internal Product ID:

199741

Customer Ratings & Reviews


Alpine R2-W12D4 with Sealed Enclosure thumbnail image

5 star
80%
4 star
17%
3 star
3%
2 star
1%
1 star
0%



Durability
4.8
Value
4.9
Features
4.7
Design
4.8
Usability
4.8

Customer Photos & Videos


Customer Reviews

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Great box for a great price

The following review is for MDFS12, which is a part of the bundle you are viewing.

Very nice box. Extra bonus with the poly fill. Deep black carpet color looks great. 12" sub dropped in perfectly without any sanding. Can't beat the price with free shipping!

By Mike on October 7, 2013

166 found this helpful


great value great sound

The following review is for MDFS12, which is a part of the bundle you are viewing.

Nice box preassembled. All you need is terminals and short piece of speaker wire!! Once sub is muonted if new season it!! Then pound on it !!!
Nice tight sound!

By mike on October 14, 2013

164 found this helpful


Fantastic Value for such a great item!

The following review is for MDFS12, which is a part of the bundle you are viewing.

After receiving the Box, I promptly installed it and began tuning my subwoofer and amp. Wow. Not only did the bass sound punchier, which was expected, it sounded much clearer and did not overlap my OEM speaker in my 02 Jetta.
The box is definitely a key component in my audio setup and I would recommend this product to any of my friends looking for this type of product.

By MJones on September 17, 2013

163 found this helpful


Works Great!

The following review is for MDFS12, which is a part of the bundle you are viewing.

Bought this as replacement box. Couldnt hear a differnce but sounds the same as my old box.

By D on December 1, 2011

158 found this helpful


Great Enclosure For The Price!

The following review is for MDFS12, which is a part of the bundle you are viewing.

I received this enclosure via a package deal from Sonic Electronix with the Infinity Kappa 120.9w. They are a great match! The enclosure matches the subwoofer manufacturer's recommended sealed enclosure size.

This enclosure arrived in perfect condition, with no air leaks. I have tested out the Infinity 120.9w woofer with 600 wrms pounding to bass heavy music, and the enclosure held strong.

The terminals provide the option for banana plugs or direct wire from the amp using the screw down option (which I chose because I have no banana plugs on hand). I may be getting some banana plugs just for easier connect/disconnect.

The fact that the enclosure carpet (black) matches my Lexus trunk carpet perfectly is a nice bonus.

I did add some extra poly-fil - the amount that came with the enclosure was one thin layer around the interior of the box - not enough for my liking. I bought some poly-fill and packed the box half full.

This enclosure should last a long time - it is very solid and well made. I also like that the sides are inset about 1/4", allowing for easy grip when lifting the enclosure.

By David on August 21, 2014

153 found this helpful


great box

The following review is for MDFS12, which is a part of the bundle you are viewing.

Great box would buy again great build not too big if ya worried about space

By David on November 17, 2013

154 found this helpful


Awesome box

The following review is for MDFS12, which is a part of the bundle you are viewing.

The box was a great purchase and a great deal. Very happy with my purchase.

By box user on October 31, 2013

153 found this helpful


Great Box and Great Deal!!!

The following review is for MDFS12, which is a part of the bundle you are viewing.

Wanted to repower a old 12" MTX speaker. Replaced with a new box and as good as new! Speaker hits as hard or harder, than it did when it was brand new. Thanks........

By ChaDog on September 17, 2013

148 found this helpful


works but..

The following review is for MDFS12, which is a part of the bundle you are viewing.

feels bit cheep and i had to glue seams they wiggled a bit

By sam on December 23, 2013

150 found this helpful


Subwoofer Enclosure

The following review is for MDFS12, which is a part of the bundle you are viewing.

I bought Subwoofer on this site. Send to a friend in Ukraine to participate in the competition for mobile media (car audio).

By Vlad on December 22, 2014

146 found this helpful




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