Garage
Shop

See all parts that fit your 2008 Forester

Alpine S2-W12D2 - Pair

1800W Peak (600W RMS) 12" S-Series Dual 2-ohm Car Subwoofer

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

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.89"
• Sensitivity: 85.7 dB

Learn more about the s2w12d2_2
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $640.00
Thanks , You Pay:
-33%

$431.90

 with warranty
Starting at $39/mo or 4 payments of $108 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!
Quantity
Out of stock - Order risk-free, cancel any time.
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...
NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

XRM59BT main

Dual XRM59BT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

28
DEH-S4220BT main

Pioneer DEH-S4220BT

Single DIN CD Receiver with Bluetooth and Amazon Alexa

9
-11.77%

$149.99

List price $170.00

H7653 main

Cerwin-Vega H7653

680W Peak (120W RMS) 6.5" HED Series 3-Way Coaxial 4-ohm Speakers

43
-16.67%

$79.99

List price $95.99

MVH-S522BS main

Pioneer MVH-S522BS

Single DIN Digital Media Bluetooth Receiver with Bluetooth and SiriusXM Ready

4
-10.53%

$169.99

List price $190.00

ZXI-654 main

DS18 ZXI-654

480W Peak (160W RMS) 6.5" ZXI Series 2-way 4-ohm Coaxial Car Speakers

NSP525 main

NVX NSP525

240W Peak (160W RMS) 5.25" N-Series 2 Way Coaxial Car Speakers

27
-16.67%

$79.99

List price $95.99

Pioneer AVH-3500NEX

7" Single DIN Flip-Out Touchscreen CD/DVD Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

9
-10.75%

$829.99

List price $930.00

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

Description


Alpine brand icon

Authorized dealer

Alpine S2-W12D2

1800W Peak (600W RMS) 12" S-Series Dual 2-ohm Car Subwoofer
Quantity: 2

Product Details:

  • 12" Dual 2 ohm S Series Subwoofer
  • Power Handling:
    • Peak: 1800 watts
    • RMS: 600 watts
  • Carbon Fiber Polypropylene Cone
  • Parabolic cone structure construction
  • High-Amplitude Multi-Roll (HAMR) Surround
  • Polypropylene ceramic dust cap
  • Twist-lock grille system with no patent
  • High strength steel frame for added durability
  • Perimeter venting with airflow management system
  • Compound radius curve extended pole geometry
  • Airflow optimized dual flare pole vent
  • Progressive spider with reinforced layer tinsel leads
  • 2.6" High Temperature Copper Voice coil
  • 5-layer voice coil winding on aluminum former
  • High-excursion underhand voice coil configuration
  • 8-gauge push terminals with VC configuration jumpers
  • 15 mm Xmax
  • 64 oz. Double Stacked Ferrite magnet motor structure
  • Frequency Response: 23 - 215 Hz
  • Resonance Frequency (Fs): 26.6 Hz
  • Sensitivity: 85.7 dB
  • Recommended sealed box volume: 0.55 cubic feet - 1 cubic feet
  • Recommended ported box volume: 1 cubic feet - 1.5 cubic feet
  • Top-mount depth: 4.89"
  • Cutout diameter: 10.64"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconAlpine S2W12D2 owner’s manual

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Alpine S2-W12D2 - Pair Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine S2-W12D2 - Pair Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine S2-W12D2 - Pair Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Alpine S2-W12D2 - Pair Subwoofers

2 Channel Amp

4 Channel Amp


Loading...
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

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

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

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99


This product is temporarily out of stock. May we recommend...

Marine Club 12 small

JBL CB122 Club Marine 12

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 7-13/16"
• Sensitivity: 89 dB

(1)

$119.95

List price $379.95

VCW124v3 small

NVX VCW124 Version 3 (VCW124v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(132)

$239.99

List price $287.99

12W6v3-D4 small

JL Audio 12W6v3-D4

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

(25)

$949.99

List price $949.99

Specifications & Details


Subwoofer Specifications
Series
S Series
Subwoofer Size
12"
Peak Power Handling
1800 watts
RMS Power Handling
600 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
2 ohm
Voice Coil Material
Copper
Voice Coil Diameter
2.6"
Frequency Response
23 - 215 Hz
Sensitivity
85.7 dB
Xmax (millimeters)
15 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Dark Gray
Woofer Composition
Carbon Fiber Polypropylene
Woofer Surround
High-Amplitude Multi-Roll (HAMR)
Magnet Structure
Double Stacked
Magnet weight
64 oz.
Magnet Type
Ferrite
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.55 cubic feet
Optimum Sealed Box Volume
0.85 cubic feet
Maximum Sealed Box Volume
1 cubic feet
Minimum Ported Box Volume
1 cubic feet
Maximum Ported Box Volume
1.5 cubic feet
Top-Mount Depth (Mounting Depth)
4.89"
Cutout Diameter
10.64"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
26.6 Hz
Equivalent Compliance (Vas)
55.1 liters
Total Speaker Q Value (Qts)
0.43
Electrical Q Value (Qes)
0.46
Electrical Resistance of Voice Coil (Re)
1.8 ohm
Mechanical Q Value (Qms)
6.5
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Subwoofers
Subwoofer
Mounting screws (4)
Other Accessory #1
Trim ring (installed)
Other Accessory #2
3" Jumper cables (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

S2W12D2_2

Weight:

32.00lbs

Internal SKU:

s2w12d2_2

Internal Product ID:

230368

Customer Ratings & Reviews


Alpine S2-W12D2 - Pair thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
5
Features
5
Design
4.5
Usability
5

Customer Reviews

Sort by:

Loading...

Sincerely a good subwoofer

The following review is for S2-W12D2, which is a part of the bundle you are viewing.

I have been in the market to add a subwoofer to my car audio and wanted to make sure that I had something with a crisp and accurate sound, while giving punchy bass that didn’t blow my trunk off. Alpine has been a good brand that I have used in the past, so I took the risk of buying this newly released 12” dual 2 ohm subwoofer. It’s wired to 4 ohms with my audioque aq3500.1d amp and it sounds amazing. I’m still breaking it in, but the difference is immediately noticed compared to having my Bose speakers alone. This is such an accurate sub and even having just one in a sealed 0.93 cubic foot box brings a lot of punch. When I can fully unleash this thing, it might be too loud even! If you’re wondering if this is enough bass, I can promise you that it is. Great space saver for my trunk and I compare this experience to having a soundbar for your tv - you don’t know how much better it can sound until you hear it yourself. I’ll most likely never go back to stock in a car with this amazing combo.

By Maxwell on February 16, 2024 Checkmark Icon Verified purchase

20 found this helpful


OUTSTANDING

The following review is for S2-W12D2, which is a part of the bundle you are viewing.

The subwoofers are great and the bass and clarity of the speakers are amazing it's worth ordering and having. Thanks

By Irvin on July 8, 2024 Checkmark Icon Verified purchase

8 found this helpful




94-01-DODGE-RAMTRK15-FD-INF small

Infinity Reference Series Front Door Factory Speaker Replacement

Fits select 1994-2001 Ram 3500 / 2500 / 1500

(18)

$150.94

List price $184.94

AL-1775-3DB small

Excalibur AL-1775-3DB

1-Way Remote Start and Keyless System with (2) 3000ft Range 4-Button LED Remote

$119.99

List price $170.78

71-2108 small

Metra 71-2108

Factory Replacement Wiring Harnesses for select 2016-2024 vehicles from Chevrolet, GMC

$12.99

List price $25.99

DDX6.9 small

DS18 DDX6.9

6.9" Double DIN Touchscreen DVD Receiver with Bluetooth and Mirror Link

(1)

$257.95

List price $257.95

DMD65C, XBAF65, SDSK2, SDRLR1, BTK106 small

Diamond Audio DMD52 with Speaker Installation Kit

200W Peak (100W RMS) 6.5" DMD Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

(253)

$243.52

List price $287.70

PS-SWMCP-B-1.250 small

JL Audio PS-SWMCP-B-1.250

Four Swivel Mounting Clamps to mount onto 1.250" roll cage diameters - mounts two VeX Pods

$199.99

List price $199.99

MHD750/1 small

JL Audio MHD750/1

750W RMS Class D MHD Series Monoblock Marine Amplifier

(3)

$1299.99

List price $1299.99

SH8F4W small

Cerwin-Vega SH8F4W

700W Peak (350W RMS) 8" RPM Stroker Series 2 Way Marine Tower Speakers in White with LED

$769.99

List price $923.99

SG-DA51600 small

Fusion SG-DA51600

1600W Peak (850W RMS) Signature Series Class-D 5-Channel Marine Amplifier with Bass Remote

$649.99

List price $649.99

Related Searches


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

2008 Subaru Forester

2011 Dodge Caliber

2009 Dodge Viper

2004 Cadillac XLR

1992 Geo Tracker

2001 Kia Optima

2015 Nissan Frontier

2016 Dodge Viper

2011 Honda Insight

2012 Lincoln MKS

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.