Garage
Shop

See all parts that fit your 1992 Tracker

Alpine R2-W12D4 with Sealed 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 Enclosure

Learn more about the r2w12d4_mdfs12
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $609.99
Thanks , You Pay:
-41%

$359.95

 with warranty
Starting at $33/mo or 4 payments of $90 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

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...
XRM59BT main

Dual XRM59BT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

28
FKB110 main

MB Quart FKB110

160W Peak (80W RMS) 4" Formula Series 2-Way 4-ohm Coaxial Car Speakers

-36.18%

$29.99

List price $46.99

Limited time!
TS-G1020S main

Pioneer TS-G1020S

420W Peak (60W RMS) 4" G-Series 2-way 4-ohm Coaxial Car Speakers

2
-24.63%

$48.99

List price $65.00

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)
Quantity: 1

General Features:

  • Single Sealed 12" Enclosure
  • 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

Loading...
BV850ACP main

Boss Elite BV850ACP

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

5
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

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

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
Club 522F main

JBL Club 522F (SPKCB522FAM)

270W Peak (90W RMS) 5.25" Club Series 2 Way Coaxial 3-ohm Speakers

-42.29%

$74.99

List price $129.95

Reference 5030cx main

Infinity Reference 5030cx (REF5030CX)

390W Peak (130W RMS) 5.25" Reference Series 2-Way 3-ohm Component Speaker System

2
-60.01%

$99.95

List price $249.95

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

43
-16.69%

$149.95

List price $180.00

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

20
-33.50%

$399.00

List price $600.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99


Best selling similar products

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

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

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

CLS113RG-W7AE small

JL Audio CLS113RG-W7AE

• ProWedge 13" W7AE Loaded Sealed Subwoofer Enclosure
• 3000W Peak
• 1500W RMS
• 3 Ohm Final Impedance
• High Grade Black Carpet Finish
• Engraved JL Audio and W7 Logos
• Rear Firing Design
• 10th Anniversary Edition W7 Subwoofer

(8)

$2199.99

List price $2299.99

49DL7TDF122 small

Kicker DL7TDF122 (49DL7TDF122)

• Sealed enclosure with 2 12" Solo-Baric L7T Series Subwoofer
• 1200 watts RMS Power
• Final Impedance: 2-ohm
• Dimensions: 38-3/16" L x 8-1/4" H x 17-1/8" W

(1)

$749.99

List price $849.99

BXSQ112 small

NVX BXSQ112

• Sealed enclosure with 1 12" SQ Series Subwoofer
• 600 watts RMS (1200 watts Peak)
• Final Impedance: 2-ohm

$349.99

List price $479.99

BE-TOYHIG3-VS102 small

NVX Loaded BOOST Box - 2014-2019 Toyota Highlander - BE-TOYHIG3-VS102

• Sealed BOOST enclosure with 1 10" N Series Subwoofer
• Fits select 2014-2019 Highlander and Highlander Hybrid
• 500 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm

(2)

$349.99

List price $437.99

SBX-J-JTGLAD/10TW1 small

JL Audio Stealthbox® SBX-J-JTGLAD/10TW1

• Sealed enclosure with 2 10" Stealthbox Series Subwoofer
• 300 watts RMS each
• Final Impedance: 2-ohm

$2999.99

List price $2999.99

TRTP122 small

Kicker TRTP122 (48TRTP122)

• Sealed truck enclosure with 2 12" CompRT Series Subwoofer
• 250-500 watts RMS Power Rating
• Final Impedance: 2-ohm
• Dimensions: 27 1/2" L x 6 1/8" H x 14 5/8" W

(4)

$349.99

List price $379.99

BE-TSLAY-G1P small

NVX Loaded BOOST Box - 2020-2023 Tesla Model Y - BE-TSLAY-G1P (Passenger's Side)

• Sealed BOOST enclosure with 1 10" N Series Subwoofer (Passenger Side)
• Fits select 2020-2023 Model Y (5-seat models only)
• 500 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm

(2)

$279.99

List price $562.99

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
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

Sort by:

Loading...

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




HK598 small

MA Audio HK598

4-Channel Amplifier

(6)

$269.99

List price $489.99

99-8216 small

Metra 99-8216 Dash Kit

Install a new Single-DIN car stereo in select 2007-2012 Yaris

(1)

$43.99

List price $48.99

MRV-M500 small

Alpine MRV-M500

500W RMS Class D V-Power Series Monoblock Car Amplifier

(55)

$199.99

List price $230.00

XC6410 small

Clarion XC6410

500W 4-Channel Marine XC Series Power Amplifier

(4)

$269.99

List price $499.99

PS475 small

Jensen PS475

4-Channel Amplifier

$84.99

List price $109.99

Python-Responder-LE small

Python Responder LC 333 (P/N 3303P)

2-Way Paging Responder LC Car Alarm with Keyless Entry, One LCD Remote and One 5-Button Remote

(3)

$139.99

List price $499.99

EVD-4500 small

Absolute EVD-4500

4500W Max, Evolution Series Class D Monoblock Amplifier (EVD4500)

$319.99

List price $699.99

VIBE412 small

Lanzar VIBE412

1000W Max 4-Channel Class AB Car Amplifier w/ Remote Bass Knob (Vibe 412)

$74.99

List price $272.00

C2-600 small

JL Audio C2-600

120W RMS 6" C2 Series 2-Way 4-ohm Component Speaker System

(5)

$329.99

List price $329.99

Related Searches


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

1992 Geo Tracker

2017 BMW M4

1991 Mitsubishi Eclipse

2011 Volkswagen Eos

2006 Buick Rendezvous

2003 Dodge Durango

2007 GMC Envoy

2008 Ford Focus

2004 Saab 9-3

2004 Lexus RX330

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.