Garage
Shop

See all parts that fit your 2015 Mustang

(2) Alpine R2-W12D4 with Sealed Dual Enclosure

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

Alpine
Shop all Alpine
Lowest price in 30 days
highlight-star-icon

• 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 Dual Enclosure

Learn more about the r2w12d4_mdfd12
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $1199.99
Thanks , You Pay:
-40%

$719.90

 with warranty
Starting at $45/mo with

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Quantity
In Stock
Brand new

Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Loading...
72-5602 main

Metra 72-5602

Install New Front Kick Panel Speakers in select 2009-2024 vehicles from Ford, Mazda, Lincoln

43
-20.01%

$11.99

List price $14.99

D9-MST2015L-64GB main

Dynavin D9-MST2015L-64GB

10.1" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto for select 2015-2023 Mustang (SiriusXM Ready)

2
CP1-FRD2 main

PAC CP1-FRD2

CAN-Bus Plug-and-Play Harness for 24-pin Connector at OBD2 Gateway Module in select 2014-2024 vehicles from Ford

-34.18%

$52.00

List price $79.00

82-FD1 main

Metra 82-FD1

Ford 2011-2020 Speaker Adapter Kit - Front or Rear

10
-38.81%

$20.80

List price $33.99

99-5838CH main

Metra 99-5838CH Dash Kit

Single DIN or Double DIN Stereo Dash Kit and Harness for select 2015-2023 Mustang

1
-32.12%

$559.99

List price $824.99

XBAF65 main

NVX XBAF65

Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

114
-37.15%

$21.99

List price $34.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

VSPTW main

NVX VSPTW

450W Peak (150W RMS) 1" V-Series Silk Dome Tweeters with External Crossovers

29
-31.25%

$54.99

List price $79.99

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

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.

(2) Alpine R2-W12D4 with Sealed Dual Enclosure

40% off


Priced separately $769 89

Promo Savings of $20 00

Total price:

$749 89

Description


Alpine brand icon

Authorized dealer

Alpine R2-W12D4

2250W Peak (750W RMS) 12" R2-Series Dual 4-ohm Car Subwoofer
Quantity: 2

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

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB)
Quantity: 1

Belva Subwoofer Boxes with Polyfill and 3/4-inch MDF

Built for Bass

You've got an awesome subwoofer there, pal. But where's it gonna go? You can't just throw that thing in the trunk and call it a day. Don't worry, Belva's got your back. With superior construction, great features and everything you need for bass, you'll be ready to pass up that entry-level box you've been eyeballing.

Belva Subwoofer Boxes are CARB Phase 2 Compliant

You get quality boxes with solid 3/4" MDF because nothing else will do the job right. You want to flex your windshield, not your box's innards. You get polyfill built into the box, making sure your subs perform perfectly. On top of that, you get a box that's CARB Phase 2 Compliant, meaning your box won't emit as much nasty formaldehyde as the competition. Better for your bass and better for you.

Belva MDF 3/4-inch Thickness

Look, nobody buys a subwoofer and says, 'Aw man, I just want a teeny bit of thump.' Naw man, you want something that kicks you in the chest, but you need a box that's gonna put up with it. That's where Belva comes in. While other brands use less-than-optimal 1/2-inch MDF, we've got 3/4-inch MDF to make sure you get all the bass you can handle. Why risk a busted box? Belva's the obvious choice when it comes to giving your sub a good home and giving you the low end you're looking for.

Belva MDF 3/4-inch Thickness

General Features:

  • Dual Sealed 12" Enclosure
  • Internal box volume: 2.5 cubic ft. total air space - 1.25 cubic ft. per chamber.
  • High Quality 3/4" MDF Construction
  • Durable black carpeting
  • Pre-lined with Poly-Fil
  • Seams are fully caulked for better efficiency
  • 2 Separate chambers allowing each subwoofer its own air space
  • Gold post terminals for clean and easy wiring access
  • Box Dimensions: 28" Wide, 14" Depth, 14" Height
  • 30 Day return policy



Loading...
SB-F-MUSCPE/12TW3 main

JL Audio Stealthbox® SB-F-MUSCPE/12TW3

Custom fit subwoofer enclosure for select 2015-2025 Mustang and Mustang GTD

$1,349.99

BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

iLX-W650 main

Alpine iLX-W650

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

123
-5.72%

$329.95

List price $349.95

Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

DMH-W4660NEX main

Pioneer DMH-W4660NEX

6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)

2
-20.00%

$599.99

List price $750.00

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99


Best selling similar products

R2S-1X10 small

Rockford Fosgate Prime R2S-1X10

• Sealed truck enclosure with 1 10" Prime R2 Series Subwoofer
• 200 watts RMS (400 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 19" L x 13.5" H x 5.25" W x 3.25" W2

(17)

$219.99

List price $239.99

TNE212D small

MTX Audio TNE212D

• Sealed enclosure with 2 12" Terminator Series Subwoofer
• 200 watts RMS each
• Final Impedance: 2-ohm
• Dimensions: 29.63" L x 14" H x 13.5" W

(32)

$219.95

List price $249.95

49L7TDF122 small

Kicker L7TDF122 (49L7TDF122)

• Sealed truck enclosure with 1 12" Solo-Baric L7 Series Subwoofer
• 300-600 watts RMS Power Rating
• Final Impedance: 2-ohm
• Dimensions: 23 7/8" L x 6 1/2" H x 15" W

(5)

$399.99

List price $429.99

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
2
Box Style/Shape
Square/Rectangle
Wood Thickness
3/4"
Number of Terminals
2
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, MDFD12

Weight:

97.00lbs

Internal SKU:

r2w12d4_mdfd12

Internal Product ID:

199742

Customer Ratings & Reviews


(2) Alpine R2-W12D4 with Sealed Dual Enclosure thumbnail image

5 star
78%
4 star
17%
3 star
3%
2 star
2%
1 star
0%



Durability
4.7
Value
4.9
Features
4.7
Design
4.7
Usability
4.8

Customer Reviews

Sort by:

Loading...

Good Box

The following review is for MDFD12, which is a part of the bundle you are viewing.

Great box does well with my subs would buy again

By Dennis on May 4, 2012

147 found this helpful


Heavy Duty!

The following review is for MDFD12, which is a part of the bundle you are viewing.

I would recommend this product for the guy's out there that are serious about their music. If you got good, high quality subs, then this box will make them perform to your sub's max output with out worry of blowing up your box.

By Scott on February 3, 2014

140 found this helpful


good box

The following review is for MDFD12, which is a part of the bundle you are viewing.

I bought this box for 2 12" kicker cvx subs 750 watts a piece its a great closed box for them especially stuffed 1/4 with pillow stuffing.. looks real good to.. quick shipping

By gage on February 6, 2011

136 found this helpful


good value

The following review is for MDFD12, which is a part of the bundle you are viewing.

product worked for my new hifonics subs. that will be a winter system for my ride so i don't have to keep my main subs in all year round. i really like it mostly because its has black carpeting.

By bigmike on August 10, 2010

133 found this helpful


The Box that Rocks

The following review is for MDFD12, which is a part of the bundle you are viewing.

Appears to be fairly well built. Arrived with a little dent and a tear but its too little to bother with. Sounds nice but doesn't hit as deep as I would have liked. Small size however, leaves me some room for a couple of bags of groceries. Three stars for durability since I've only owned this for about a month.

By Kevin on November 1, 2014

133 found this helpful


Amazing Enclosure, Even Better Price.

The following review is for MDFD12, which is a part of the bundle you are viewing.

Ordered this as my first enclosure, put two 12" subs in it and I haven't found a box that hits as hard and as clean as this one has. Will definitely buy from SonicElectronix again for my car audio needs.

By Arron-O-Suarus... on February 16, 2012

126 found this helpful


great box

The following review is for MDFD12, which is a part of the bundle you are viewing.

Very sturdy well built. Allows maximum bang. Great price under $60

By Dylan on January 5, 2015

128 found this helpful


Fast and easy great buy

The following review is for MDFD12, which is a part of the bundle you are viewing.

I got my complete set up: 12" kicker subs box 1000watt Mbquart amp and amp kit. I have always installed my own equipment, I found it helpful that they have videos that covered some of the product they carry. There are a few shop's in Texas like Best buy and Custom Sounds that offer equipment. But the professionalism of the knowledgeable staff the price and the reliability made it clear that I wanted to do business with them.

By Robert on January 3, 2014

129 found this helpful


solid sealed box!!!

The following review is for MDFD12, which is a part of the bundle you are viewing.

Cant beat the price. But it is really very good box. I put two 12" hifonic,also bought from here, with a 2 channel 1000 watt amp.It really shook my rearview mirror in my '97 towncar. My brother loved it so we put it in his '92 prelude.Wow!!! You can hear him before you see him. Great buy!!!

By Jasun on October 8, 2013

126 found this helpful


Its a box

The following review is for MDFD12, which is a part of the bundle you are viewing.

have kicker 12, they sound alright have some loose paneling in my car, so I'm having trouble getting the clarity I want. over all its a box and it works.

By Jonathan on April 4, 2013

130 found this helpful




XDM700/5 small

JL Audio XDM700/5

700W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

$929.99

List price $929.99

99-7390B small

Metra 99-7390B Dash Kit

Single DIN or Double DIN Stereo Dash Kit and Harness for select 2017-2019 Sportage with Navigation, Auto Climate Control, and Factory Amplifier

$349.99

List price $711.99

R2-A150M, XKIT42 small

Alpine R2-A150M with NVX 4 Gauge Amp Kit

1500W RMS R-Series Class D Monoblock Amplifier

(130)

$699.95

List price $983.99

47KEY200.4 small

Kicker KEY200.4 (47KEY2004)

200W RMS KEY Series 4-Channel Smart Amplifier with Automatic EQ and Processor

(4)

$239.96

List price $329.99

95-7510HG small

Metra 95-7510HG Dash Kit

Double DIN Stereo Dash Kit and Harness for select 2004-2008 RX-8

(7)

$209.99

List price $473.99

PSW210 small

Alphasonik PSW210 10"

(3)

$49.99

List price $79.99

KMF124 small

Kicker KMF124 (45KMF124)

350W Peak (175W RMS) 12" KMF Series Single 4-ohm Free Air Marine Subwoofer

(1)

$249.99

List price $279.99

SW-OFC16GA-500RB small

DS18 SW-OFC16GA-500RB

500 ft 16-Gauge Speaker Wire (Red and Black)

$359.95

List price $431.99

No picture

Belva BMRC6W (Open Box, Good)

White Fully Enclosed Water-Resistant with Flip-up Style Marine Stereo Splash Guard

$23.99

List price $69.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2002 Chevrolet TrailBlazer

1998 Dodge Durango

2006 BMW X3

2015 Ford Mustang

2010 Scion xD

2007 Audi RS4

2012 Audi A3 Quattro

2013 Buick Verano

2001 Subaru Outback

2015 Ford C-Max

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.