Garage
Shop

See all parts that fit your 2004 Navigator

Clarion SW1251

12" Single 4 ohm Subwoofer

Clarion
Shop all Clarion
Product videos
highlight-star-icon

12" SW Single 4 ohm Subwoofer • Peak: 750 watts • RMS: 250 watts • Impedance: 4 ohm • Fiber Glass / Paper Cone Design • Dual Strontium Ferrite Magnets

Learn more about the sw1251

We apologize

This item has been discontinued


Loading...
AOEM-FRD24 main

PAC AOEM-FRD24

Amplifier Integration Interface for select 2003-2014 vehicles from Ford, Lincoln, Mercury with Amplified THX and Sony Sound Systems

26
-55.82%

$56.99

List price $129.00

70-5520 main

Metra 70-5520 Wiring Harness

Install a new car stereo in select 2003-2016 vehicles from Ford, Mercury, Lincoln

56
95-5026 main

Metra 95-5026 Dash Kit

Install a new Double-DIN car stereo in select 2002-2006 vehicles from Ford, Lincoln, Mercury (Black)

18
-41.68%

$13.99

List price $23.99

70-1776 main

Metra 70-1776 Wiring Harness

Install a new car stereo and retain factory amplifier in select 2003-2007 vehicles from Ford, Lincoln, Mercury

2
-11.11%

$39.99

List price $44.99

PH654 main

Cerwin-Vega PH654

600W Peak (300W RMS) 6.5" PRO Series Full Range Coaxial 4-ohm Speakers

2
-16.67%

$189.99

List price $227.99

SA68 main

Scosche SA68

Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for select 1950-2025 vehicles from Ford, Mercury, Mazda

39
-46.70%

$7.99

List price $14.99

VSP68 main

NVX VSP68

600W Peak (200W RMS) 6x8" V-Series 2 Way Coaxial Car Speakers

46
-16.67%

$89.99

List price $107.99

SXE-1751S main

Alpine SXE-1751S

440W Peak (80W RMS) 6.5" SXE-Series 2-way 4-ohm Component Speakers with Mylar-Titanium Tweeters

4
-16.67%

$64.99

List price $77.99

XED525C main

Cerwin-Vega XED525C

500W Peak (60W RMS) 5.25” XED Series 2-Way 4-ohm Component Speaker System

8
-16.67%

$59.99

List price $71.99

DPX395MBT main

Kenwood eXcelon DPX395MBT

Double DIN Shallow Chassis Digital Media Receiver with Bluetooth and Built-in Alexa

6
-19.52%

$169.00

List price $210.00

Product Highlights


12" SW Single 4 ohm Subwoofer • Peak: 750 watts • RMS: 250 watts • Impedance: 4 ohm • Fiber Glass / Paper Cone Design • Dual Strontium Ferrite Magnets

Description


Clarion brand icon

Authorized dealer

  • 12" SW Series Single 4 ohm Subwoofer
  • Power Handling:
    • Peak: 700 watts
    • RMS: 250 watts
  • Single 4 Ohm Heat Resistant Voice Coil
  • Polypropylene Electronic Spun Aluminum Dust Cap
  • Fiber Glass / Paper Cone Design
  • Nitrile Butadiene Rubber High Excursion Surround
  • Dual Strontium Ferrite Magnets
  • Hyper Extended Vented Pole Piece
  • Spider Exhaust Technology (SET) Cooling
  • Dual Gold Plated Terminal Blocks
  • Linear Cotton Spider with Integrated Tinsel Leads
  • Custom Stamped Steel Powder Coated Chassis
  • 1-year SonicElectronix.com warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Clarion SW1251 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Clarion SW1251 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Clarion SW1251 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Clarion SW1251 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Loading...
REF507CF_2_MET-825601_2 main

2 Infinity REF507CF (INFSPKRF507CFUS) w/ Adapter Plates

390W Peak (130W RMS) 5.25" Reference Series 2-way 3-ohm Component Speaker System with Speaker Adapter Plates

3
-12.14%

$477.88

List price $543.88

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

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

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

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

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

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!
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

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

Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
Peak Power Handling
700 watts
RMS Power Handling
250 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Frequency Response
30 - 1,000 Hz
Sensitivity
89.6 dB
Subwoofer Design
Round / Circle
Main Cone Color
Dark Gray
Woofer Composition
Woven Glass Fiber
Woofer Surround
Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
.90 cubic feet
Maximum Sealed Box Volume
.90 cubic feet
Minimum Ported Box Volume
1.10 cubic feet
Maximum Ported Box Volume
1.10 cubic feet
Top-Mount Depth (Mounting Depth)
6.5"
Cutout Diameter
11.31"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SW1251

Weight:

13.00lbs

Internal SKU:

sw1251

Internal Product ID:

9044

Product and How-to Videos


Customer Ratings & Reviews


Clarion SW1251 thumbnail image

5 star
83%
4 star
17%
3 star
0%
2 star
0%
1 star
0%



Durability
4.9
Value
5
Features
4.2
Design
4.4
Usability
4.9

Customer Reviews

Sort by:

Loading...

clarion- best dollar for dollar sub

clarion does not play around i have two of these in my ford ranger in a dual ported box, and they slam. This sub is one of the best dollar for dollar sub you get the best bang for your buck!

By wendell on October 24, 2008

15 found this helpful


150+ DB

I bought 8 of these subs for a wall build. I had all 8 in a pac man style wall center port tuned to 33Hz powered by 2 Audiopipe 1500Ds and did a 149.x with stock battery. I later installed 2 Kinetik HC1800s and 2 runs of 0ga and did a 152.4 on the dash on TL with driver window down. They are the best bang for the buck sub on the planet!

By Pistol on December 25, 2009

13 found this helpful


Pretty Decent For The Price

I Bought four of these and only have three of them in a box because I could only afford a box that fit three and it still knocks i got three of those and 2 other twelves and two 10s plus my two 10inch mid range and 6 tweeters and after market 6x9s in the back. all in my ford windstar. soon enough im gonna build one big box to fit in the back of the van and put all my subs in it and itll bang pretty good. i only got two amps. one for the highs and one for the lows so im going to have to by another amp. and itll deff be from here

By Mike on September 13, 2009

13 found this helpful


gooooood

i justgot 2 of these from here. they pound pretty good escpecially for 37ish bucks i have 2 in a sealed box, ran from a 1000W panasonic 4 channel amp both bridged they rock out, i like heavy metal but they pound with anything, i listen to more rap then i ever have, they are sweet!

By kris on December 4, 2007

13 found this helpful


idk

this sub is good.....i have a three 12 box in my trunk and 2 of them are pioneers....the clarion stand out very nicely......good stuff sonic...i will have much more things to buy...=D

By jeresara on January 22, 2010

12 found this helpful


great sub great value

i bought 2 of these subs locally then later found sonicelectronix and to see them on here for about half of the price!!!!!! needless to say i only shop at sonicelectronix for my car audio needs! great value and they are amazing subs. they have been pounding for 2 years now and they do not fail to please me i would highly recommend these subs

By ju5t1f13d on June 10, 2009

11 found this helpful




MRP-M450 small

Alpine MRP-M450

Class D Monoblock Amplifier

(22)

$149.99

List price $219.99

FD01B small

Scosche FD01B

Wire Harness to Connect an Aftermarket Stereo Receiver to Select 1973-1986 Ford, Lincoln and Mercury Vehicles

(5)

$3.99

List price $8.95

HP255M small

Scosche HP255M

Noise Isolation Earbuds with taplineLINE Remote & Mic (White)

$29.99

List price $34.99

S580.2 small

Precision Power PPI S580.2

580W Max, Sedona Series 2-Channel Amplifier

(3)

$84.99

List price $249.95

KX200.4 small

Kicker KX200.4

200 watts, 04KX200.4 KX-Series 4-Channel Amplifier

(3)

$129.99

List price $249.99

M6M small

Massive Audio M6M

6-1/2" M Series Mid-Range Car Speaker Driver

$44.95

List price $109.95

RP-HV21-GA small

Panasonic RPHV21GA Ear Drops Earbuds In-Ear Headphones (Green)

Clip-Style EarDrops (RP-HV21-GA) Lightweight In-Ear Earphones/Ear Buds with Oversized 14.8 mm Driver

$5.99

List price $10.95

IBUS 20 small

Focal IBUS 20 (IBUS20)

8" Powered Access Subwoofer Enclosure, 150W Max with Bass Remote

$679.99

List price $850.00

BT800 small

Scosche BT800

Universal, Automotive In-Vehicle Bluetooth Hands-Free Car Kit with Factory/OEM Appearance

(2)

$59.99

List price $99.99

Related Searches


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

2004 Lincoln Navigator

2014 Volvo XC60

2003 Toyota Avalon

2006 Scion tC

1991 Lexus LS400

1992 Dodge Dakota

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.