Garage
Shop

See all parts that fit your 2009 Accord

Alpine SWE-12S4

250W 12" Type-E Single 4-Ohm Subwoofer

Alpine
Shop all Alpine
Product videos
highlight-star-icon

• 750W Peak
• 250W RMS
• Single 4-Ohm Voice Coil
• Woven Fiber w/ Kevlar Reinforced Pulp cone
• Santoprene Woofer Surround

Learn more about the swe12s4

We apologize

This item has been discontinued


Loading...
82-7805 main

Metra 82-7805

6" to 6-3/4" Speaker Plate Adapter for select 2004-2023 vehicles from Honda, Acura

12
-47.38%

$19.99

List price $37.99

72-7800 main

Metra 72-7800

Install New Speakers in select 1990-2024 vehicles from Honda, Acura, Isuzu

90
-33.36%

$9.99

List price $14.99

40-HD10 main

Metra 40-HD10 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2005-2024 vehicles from Honda, Mazda, Acura

29
-15.40%

$10.99

List price $12.99

99-7874 main

Metra 99-7874 Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 2008-2015 Accord and Crosstour (Matte Charcoal)

6
-50.01%

$47.99

List price $95.99

99-7875 main

Metra 99-7875 Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 2008-2012 Accord and Accord Crosstour and Crosstour (Matte Charcoal)

1
-10.42%

$85.99

List price $95.99

70-1729 main

Metra 70-1729 Wiring Harness

Install a new car stereo in select 2008-2021 vehicles from Honda, Acura

5
-41.20%

$9.99

List price $16.99

HA1707DGB main

Scosche HA1707DGB Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 2008-2015 Accord and Crosstour and Accord Crosstour (Dark Atlas Gray)

5
-19.49%

$55.99

List price $69.54

70-1730 main

Metra 70-1730 Wiring Harness

Install a new car stereo and retain factory amplifier in select 2008-2017 vehicles from Honda, Acura

4
-10.72%

$24.99

List price $27.99

99-7874T main

Metra 99-7874T Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 2008-2015 Accord and Crosstour (Taupe)

3
-48.96%

$48.99

List price $95.99

HonK852D main

American International HonK852D

Single DIN or Double DIN Stereo Dash Kit for select 2008-2012 Accord and Accord Crosstour (Gun Metallic)

2
-47.88%

$48.99

List price $94.00

Product Highlights


• 750W Peak
• 250W RMS
• Single 4-Ohm Voice Coil
• Woven Fiber w/ Kevlar Reinforced Pulp cone
• Santoprene Woofer Surround

Description


Alpine brand icon

Authorized dealer

Genetically Built Like A Type-R

The new Type-E’s highly efficient design can play both louder and lower, and is more durable than its predecessor. With a shallow mounting depth, these subs can be installed just about anywhere, but they look so good, you won't want to hide them.

The Type-E cones are built with a reinforced parabolic cone structure and lightweight poly mica dust cap, enabling a faster snappy dynamic response. The high excursion Santoprene® H.A.M.R. surround allows for impressive linear excursion so Type-E subs play louder, and lower!

What is unique and amazing about the new Type-E subwoofer is not only the engineering behind the build, it's the new requirements for them to optimally perform. The new Type-E 12” specification requires 0.65 – 1.0 cubic feet air space for superior performance. That’s 35% less air space used in your vehicle!

General Features:

  • 12" Single 4-Ohm Type-E Series Car Subwoofer
  • Power Handling:
    • Peak: 750 watts
    • RMS: 250 watts
  • Impedance: Single 4 ohm
  • Woven Fiber w/ Kevlar Reinforced Pulp cone
  • Santoprene Woofer Surround
  • Custom High Strength Steel Basket
  • Progressive Nomex Spider
  • 2.6" 3-Layer Single Voice Coil
  • FEA Optimized Design w/ Compound Radii
  • Frequency response: 28-200 Hz
  • Resonance Frequency (Fs): 36 Hz
  • Top-mount depth: 5"
  • Sensitivity: 87.9dB
  • 1-year SonicElectronix.com Warranty

Product history:

Alpine SWE-12S4 thumbnail
(newest, current model)
Alpine SWE-1243 thumbnail
(previous model, replaced by Alpine SWE-12S4)
Alpine SWE-1242 thumbnail
(previous model, replaced by Alpine SWE-1243)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Alpine SWE-12S4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine SWE-12S4 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine SWE-12S4 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Alpine SWE-12S4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

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

3
-19.05%

$339.99

List price $420.00

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

123
-33.36%

$79.96

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

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

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

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

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


Best selling similar products

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

SQW124 small

NVX SQW124

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

$299.99

List price $359.99

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

VCW122v3 small

NVX VCW122 Version 3 (VCW122v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 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)

(95)

$239.99

List price $287.99

CWRT124 small

Kicker CWRT124 (48CWRT124)

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 3-3/4"
• Sensitivity: 85.5 dB

(3)

$199.96

List price $279.99

SRX1240 small

Memphis SRX1240

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

$79.99

List price $139.95

SW-M12D2 small

Sundown Audio M-12 D2 12" (M12D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.88"
• Sensitivity: 80.6 dB

(2)

$599.99

List price $719.99

Stage 122 small

JBL Stage 122 (JBLSUBST122AM)

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

$109.95

List price $129.95

52L7XS121 small

Kicker L7XS121 (52L7XS121)

• RMS Power: 1500 - 3000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 10-1/8"

$1399.99

List price $1499.99

Specifications & Details


Subwoofer Specifications
Series
Type-E Series
Subwoofer Size
12"
Peak Power Handling
750 watts
RMS Power Handling
250 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2.6"
Frequency Response
28 - 200 Hz
Sensitivity
87.9 dB
Xmax (millimeters)
10 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Woven Kevlar and Glass Fiber Composite
Woofer Surround
Santoprene Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.65 cubic feet
Maximum Sealed Box Volume
1.0 cubic feet
Minimum Ported Box Volume
1.0 cubic feet
Maximum Ported Box Volume
1.5 cubic feet
Top-Mount Depth (Mounting Depth)
5"
Cutout Diameter
10-9/16"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
36 Hz
Equivalent Compliance (Vas)
52 liters
Total Speaker Q Value (Qts)
0.59
Electrical Q Value (Qes)
0.64
Electrical Resistance of Voice Coil (Re)
3.6 ohm
Mechanical Q Value (Qms)
7.48
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

SWE-12S4

Weight:

14.00lbs

Internal SKU:

swe12s4

Internal Product ID:

45533

Product and How-to Videos


Customer Ratings & Reviews


Alpine SWE-12S4 thumbnail image

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



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


CO570-2 small

Orion CO570

5" x 7" Cobalt Series 2-Way Coaxial Speakers

(2)

$34.99

List price $54.99

SRQ1732R small

Clarion SRQ1732R

6-3/4" 3-Way Quality Series Coaxial Car Speakers

(8)

$54.95

List price $129.99

Related Searches


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

2003 Toyota Highlander

2009 Honda Accord

2012 Ford Flex

2024 Audi A4 Quattro

2025 Audi RS7

1992 Dodge Shadow

2014 BMW 740i

2013 Smart Fortwo

1981 Toyota Corona

1993 Dodge B Series

Vehicle
Store
Delete

2019 Can-Am Defender MAX HD8 DPS

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.