Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Car Audio & Electronics
  3. Car Speakers
  4. All Car Speakers

All Car Speakers for your 2003 SC430 close

Exclamation Icon It’s a no-brainer.
 Get your speakers here.

Install kit discounts · Guaranteed fit · Full warranty
Filters
Reset Done
Show products that do not fit
Product Type
Price Range
Speaker Location
Product Fitment Type
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Machete Series (10)
PRO-X Series (10)
V Series (10)
Punch Series (9)
Reference Series (9)
C1 Series (7)
CS Series (6)
HED Series (6)
C2 Series (5)
N-Series (5)
Prime Series (5)
PRO Series (5)
S Series (5)
ZXI Series (5)
A Series (4)
Club Series (4)
DMD Series (4)
Excelon Motorsports Series (4)
MSNEO Series (4)
Prime Series (4)
SPL Show Series (4)
Terminator Series (4)
VEGA Series (4)
VEX Series (4)
XL Series (4)
Apocalypse Series (3)
BASSREV Series (3)
Cento Series (3)
Dieci Series (3)
EQ Series (3)
EXL Series (3)
G-Series (TSG) (3)
Kappa Series (3)
KS Series (3)
NEO Series (3)
PANCADÃO Series (3)
Polk DB+ Series (3)
Primus Series (3)
PRO-GM Series (3)
SQ Series (3)
Stage Series (3)
XED Series (3)
C3 Series (2)
Colossus Classic Series (2)
Discus Series (2)
DMDX Series (2)
DR Series (2)
DS Series (2)
Focus Series (2)
Formula Series (2)
Gen-X (2)
Godfather Series (2)
Hannibal Series (2)
KFC Series (2)
LCMR Series (2)
M Series (2)
MC Series (2)
MotorSport Series (2)
MR Series (2)
PNW Series (2)
Power Series (2)
Power T1 Series (2)
Power T2 Series (2)
PRO-FR Series (2)
PRO-NS Series (2)
Punch P1 Series (2)
RS Series (2)
Sport Series (2)
Stage 3 Gen 2 Series (2)
Stage 3 Series (2)
Street Series (2)
Thunder Series (2)
VTEK Series (2)
Zeus Series (2)
Black Hydra Series (1)
CVPRO Series (1)
CVPX Series (1)
Diamond Elite Series (1)
E-Series (1)
ECX Series (1)
EPIC PRO Series (1)
EQ NEO Series (1)
eXcelon Series (1)
Godfather Pro Series (1)
GT7 Series (1)
GX Series (1)
Hawk Series (1)
HED Pro Series (1)
MA Series (1)
MM Series (1)
MSPRO Series (1)
MX Series (1)
NEO SPL Series (1)
Octagonal Series (1)
PNX Series (1)
Polk Audio MM1 Series (1)
Premium Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-HY Series (1)
Punch Pro Series (1)
Rage Series (1)
Reserve Series (1)
Road Thunder Extreme Series (1)
SA Series (1)
Signature Series (1)
Stadium (1)
Stadium Series (1)
Stage 2 Gen 2 Series (1)
Stallion Series (1)
Street Reference Pro (1)
Stroker Pro Series (1)
Stroker Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
Uno Series (1)
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Condition
Availability

Your Vehicle

close
Checkmark Icon
2003 SC430
Speakers guaranteed to fit your vehicle.
... show 1 more locations
Update vehicle | Remove vehicle | Vehicle store

Shop the Category

filter-icon Filters & Sort

DS18 8XL800-8 (Sold Individually)

800W Peak (400W RMS) 8" XL Series 8-ohm Mid-range Speaker

8XL800-8 big
Go to item page Right Arrow Icon of Right Arrow

DS18 8XL800-8 (Sold Individually)

800W Peak (400W RMS) 8" XL Series 8-ohm Mid-range Speaker

• 800 watts Peak Each, 400 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 99 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $15.59 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$155.95

In stock.

Add to Cart
See all 5 special offers

American Bass GF-8-MR (Sold Individually)

800W Peak (400W RMS) 8" Godfather Series Midrange 4-ohm Car Speaker

GF-8-MR big
Go to item page Right Arrow Icon of Right Arrow

American Bass GF-8-MR (Sold Individually)

800W Peak (400W RMS) 8" Godfather Series Midrange 4-ohm Car Speaker

• 800 watts Peak, 400 watts RMS
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $102.78
-29% $73.26

In stock.

Add to Cart
See all 5 special offers

Diamond Audio MP525

300W Peak (150W RMS) 5.25" Motorsport Series Pro Audio Full-Range Coaxial Horn Speakers

MP525 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio MP525

300W Peak (150W RMS) 5.25" Motorsport Series Pro Audio Full-Range Coaxial Horn Speakers

• 300 watts Peak Each, 150 watts RMS Each
• 1" Horn tweeters
• Impedance:
• Sensitivity: 101 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $44.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
2
$439.99 /pair

In stock

Only 2 Left!

Add to Cart
See all 5 special offers

DS18 PRO-NS8.4 (Sold Individually)

400W Peak (200W RMS) 8" PRO-NS Series 4-ohm Shallow-mount Mid-range Speaker

PRO-NS8.4 big
Go to item page Right Arrow Icon of Right Arrow

DS18 PRO-NS8.4 (Sold Individually)

400W Peak (200W RMS) 8" PRO-NS Series 4-ohm Shallow-mount Mid-range Speaker

• 400 watts Peak Each, 200 watts RMS Each
• 1-1/4" Dome Tweeter
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$79.95

In stock.

Add to Cart
See all 9 special offers

PRV Audio 4MR60-NDY-4

120W Peak (60W RMS) 4" MR Series Pro Audio Midrange 4-ohm Car Speaker (Sold Individually)

4MR60-NDY-4 big
Go to item page Right Arrow Icon of Right Arrow

PRV Audio 4MR60-NDY-4

120W Peak (60W RMS) 4" MR Series Pro Audio Midrange 4-ohm Car Speaker (Sold Individually)

• 120 watts Peak Each, 60 watts RMS Each
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
List price $49.89
-20% $39.91

Available

Ships in 10-14 days

Add to Cart

DS18 PRO-X5M

300W Peak (150W RMS) 5.25” PRO-X Series 8-ohm Midrange Car Loudspeaker

PRO-X5M big
Go to item page Right Arrow Icon of Right Arrow

DS18 PRO-X5M

300W Peak (150W RMS) 5.25” PRO-X Series 8-ohm Midrange Car Loudspeaker

• 300 watts Peak Each, 150 watts RMS Each
• Glossy red steel basket material
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 90 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
$44.95

In stock.

Add to Cart
See all 5 special offers

American Bass STALLION 8 NEO (Sold Individually)

1600W Peak (800W RMS) 8" Stallion Series 4-ohm Midrange Speaker

STALLION-8-MR big
Go to item page Right Arrow Icon of Right Arrow

American Bass STALLION 8 NEO (Sold Individually)

1600W Peak (800W RMS) 8" Stallion Series 4-ohm Midrange Speaker

• 800 watts Peak Each, 400 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $12.77 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $209.88
-39% $127.68

In stock.

Add to Cart
See all 5 special offers

Deaf Bonce Machete MM-80L

400W Peak (200W RMS) 8" Machete Series Midrange 4-ohm Speakers

MM-80L big
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce Machete MM-80L

400W Peak (200W RMS) 8" Machete Series Midrange 4-ohm Speakers

• 200 watts Peak Each, 100 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93.8 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$64.90 /pair

Available

Ships in 10-14 days

Add to Cart
See all 5 special offers

Earthquake Sound EQ800NEO (Sold Individually)

600W Peak (300W RMS) 8" EQ NEO Series Pro Audio Midrange 8-ohm Car and PA Speaker

EQ800NEO big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound EQ800NEO (Sold Individually)

600W Peak (300W RMS) 8" EQ NEO Series Pro Audio Midrange 8-ohm Car and PA Speaker

• 600 watts Peak, 300 watts RMS
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $22.50 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$225.00

In stock.

Add to Cart

Earthquake Sound EQ8-4 (Sold Individually)

250W Peak 8” EQ Series 4-ohm Midbass Car Speaker

EQ8-4 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound EQ8-4 (Sold Individually)

250W Peak 8” EQ Series 4-ohm Midbass Car Speaker

• 250 watts Peak Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $85.00
-35% $54.99

In stock.

Add to Cart
See all 5 special offers

American Bass NEO-8-MR (Sold Individually)

400W Peak (200W RMS) 8" NEO Series Midrange 4-ohm Speaker

NEO-8-MR big
Go to item page Right Arrow Icon of Right Arrow

American Bass NEO-8-MR (Sold Individually)

400W Peak (200W RMS) 8" NEO Series Midrange 4-ohm Speaker

• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: 4 ohm
• Sensitivity: 98 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $115.72
-32% $78.52

In stock.

Add to Cart
See all 5 special offers

American Bass STUDIO 5.25 FR

240W Peak (120W RMS) 5.25" Studio Series 2 Way Coaxial Full Range 4-ohm Speakers (STUDIO-5.25-FR)

STUDIO 5.25 FR big
Go to item page Right Arrow Icon of Right Arrow

American Bass STUDIO 5.25 FR

240W Peak (120W RMS) 5.25" Studio Series 2 Way Coaxial Full Range 4-ohm Speakers (STUDIO-5.25-FR)

• 120 watts Peak Each, 60 watts RMS Each
• 1/2" Hard Dome tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $101.64
-26% $74.75 /pair

In stock.

Add to Cart
See all 12 special offers

DS18 8OCT400-8 (Sold Individually)

800W Peak (400W RMS) 8" Octagonal Series 8-ohm Mid-range Speaker

8OCT400-8 big
Go to item page Right Arrow Icon of Right Arrow

DS18 8OCT400-8 (Sold Individually)

800W Peak (400W RMS) 8" Octagonal Series 8-ohm Mid-range Speaker

• 800 watts Peak Each, 400 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $11.50 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$114.95

In stock.

Add to Cart
See all 5 special offers
Limited time!

MTX SS5

250W RMS 5.25" Signature Series 2 Way Component 4-ohm System

SS5 big
Go to item page Right Arrow Icon of Right Arrow

MTX SS5

250W RMS 5.25" Signature Series 2 Way Component 4-ohm System

• 125 watts RMS Each
• 1-3/16" Teteron Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84.9 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $50.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
$499.95 /set

Available

Ships in 10-14 days

Add to Cart
See all 12 special offers

Deaf Bonce Machete MM-80F

520W Peak (260W RMS) 8" Machete Series Midrange 4-ohm Speakers

Machete MM-80F big
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce Machete MM-80F

520W Peak (260W RMS) 8" Machete Series Midrange 4-ohm Speakers

• 260 watts Peak Each, 130 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95.2 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$74.90 /pair

Available

Ships in 10-14 days

Add to Cart
See all 5 special offers

DS18 PRO-SM8.4 (Sold Individually)

500W Peak (250W RMS) 8" PRO Series Shallow Midrange 4-ohm Car and Motorcycle Loudspeaker

PRO-SM8.4 big
Go to item page Right Arrow Icon of Right Arrow

DS18 PRO-SM8.4 (Sold Individually)

500W Peak (250W RMS) 8" PRO Series Shallow Midrange 4-ohm Car and Motorcycle Loudspeaker

• 500 watts Peak, 250 watts RMS
• Water-Resistant Paper cone and dust cap
• Impedance: 4 ohm
• Sensitivity: 97 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$79.95

In stock.

Add to Cart

• 500 watts Peak, 250 watts RMS
• Water-Resistant Paper cone and dust cap
• Impedance: 4 ohm
• Sensitivity: 97 dB

Limited time!

Earthquake Sound VTEK-52Xi

800W RMS 5.25" VTEK Series 2-Way Coaxial 2-ohm Car Speakers

VTEK-52Xi big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound VTEK-52Xi

800W RMS 5.25" VTEK Series 2-Way Coaxial 2-ohm Car Speakers

• 400 watts RMS Each
• 3/4" Silk Dome swiveling tweeters
• Glass Carbon Fiber cone material
• Impedance: 2 ohm
• Sensitivity: 89 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $15.90 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
$159.00 /pair

In stock.

Add to Cart
See all 12 special offers
Limited time!

MB Quart DK2-113

180W Peak (90W RMS) 5.25" Discus Series 2-way 4-ohm Coaxial Car Speakers

DK2-113 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart DK2-113

180W Peak (90W RMS) 5.25" Discus Series 2-way 4-ohm Coaxial Car Speakers

• 90 watts Peak Each, 45 watts RMS Each
• Aluminum Inverted Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $7.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $79.99
-13% $69.99 /pair

Available

Ships in 10-14 days

Add to Cart
See all 12 special offers

American Bass HAWK-8-MR (Sold Individually)

600W Peak (300W RMS) 8" Hawk Series Midrange 4-ohm Speaker with LED

HAWK-8-MR big
Go to item page Right Arrow Icon of Right Arrow

American Bass HAWK-8-MR (Sold Individually)

600W Peak (300W RMS) 8" Hawk Series Midrange 4-ohm Speaker with LED

• 600 watts Peak Power
• RMS Power: 300 watts
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB
• Red LED lights

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $73.38
-31% $50.81

In stock.

Add to Cart
See all 5 special offers

Earthquake Sound EQ8-8 (Sold Individually)

250W Peak 8” EQ Series 8-ohm Midbass Car Speaker

EQ8-8 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound EQ8-8 (Sold Individually)

250W Peak 8” EQ Series 8-ohm Midbass Car Speaker

• 250 watts Peak Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94.1 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $90.00
-28% $64.99

In stock.

Add to Cart
See all 5 special offers
Prev 9 10 11 12 13 Next

Items per page: 20 40 60

    Clear all

    FAQ Frequently asked questions in All Car Speakers

    Car Speakers Frequently Asked Questions (FAQ)
    Coaxial car speakers, also known as full-range speakers, combine multiple speaker elements in one unit. These elements typically include a woofer for low frequencies and a tweeter for high frequencies. Some coaxial speakers may also have a mid-range driver for enhanced sound quality. The key advantage of coaxial speakers is their simplicity and ease of installation, as all components are housed in a single unit, making them a popular choice for stock speaker replacements. In contrast, component speakers consist of separate speaker elements—woofers, tweeters, and sometimes mid-range drivers—allowing for greater customization and sound quality. Component systems offer better sound separation and imaging, making them a preferred choice for audiophiles and those seeking high-quality audio in their vehicles.
    Speaker sensitivity, measured in decibels (dB), indicates how efficiently a speaker converts power into sound. Higher sensitivity speakers produce more sound with less power, making them suitable for low-powered factory stereos or aftermarket head units. Lower sensitivity speakers may require more power to achieve the same volume level. When choosing car speakers, it's essential to consider sensitivity to match your stereo's power output. If you have a low-powered system, opt for high-sensitivity speakers to maximize sound output without distortion. Conversely, higher-powered aftermarket amplifiers can work well with lower sensitivity speakers. Balancing speaker sensitivity with your system's power output is crucial to achieving optimal audio quality and avoiding distortion.
    Speaker impedance, measured in ohms (Ω), represents the electrical resistance a speaker presents to an amplifier. Car speakers typically come in 4-ohm and 8-ohm versions, with 4-ohm being the most common. The speaker's impedance affects the amount of power it draws from the amplifier. In car audio systems, it's essential to match the speaker's impedance with the amplifier's minimum recommended load. Amplifiers are designed to work most efficiently within specific impedance ranges, and a mismatch can result in reduced power output and potential damage to the amplifier or speakers. Most car audio amplifiers are optimized for 4-ohm speakers, so choosing 4-ohm speakers is generally a safe choice. However, if you're connecting multiple speakers, it's crucial to calculate the total impedance to avoid overloading the amplifier.
    Upgrading factory car speakers with aftermarket speakers offers several advantages: Improved Sound Quality: Aftermarket speakers often feature better materials, construction, and design, resulting in clearer, more detailed sound. Enhanced Bass: Upgraded speakers typically provide deeper and more pronounced bass response. Greater Power Handling: Aftermarket speakers can handle more power, reducing the risk of distortion at higher volumes. Customization: Aftermarket speakers offer a wide range of sizes, styles, and features, allowing you to tailor your sound system to your preferences. Durability: Many aftermarket speakers are built to withstand the harsh conditions of automotive use, increasing their longevity. Overall, upgrading car speakers can transform your in-car audio experience, delivering higher fidelity and more enjoyable sound.
    2-way and 3-way car speakers differ in the number of driver elements they incorporate. A 2-way speaker consists of a woofer for low frequencies and a tweeter for high frequencies, while a 3-way speaker adds a mid-range driver for improved sound separation. The choice between 2-way and 3-way speakers depends on your audio priorities and budget. 2-way speakers are cost-effective and suitable for most users, providing good sound quality and clarity. They are ideal for replacing factory speakers or upgrading basic audio systems. 3-way speakers offer enhanced sound separation and improved mid-range performance. If you seek more detailed and balanced audio with better instrument and vocal reproduction, 3-way speakers are a worthy upgrade. However, they tend to be pricier than 2-way speakers. Ultimately, your choice should align with your audio preferences and budget, as both 2-way and 3-way speakers can significantly enhance your car's audio system compared to factory-installed speakers.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    2003 Lexus SC430

    1998 Eagle Talon

    2013 Lexus GX460

    2001 Mazda MPV

    1989 BMW 750iL

    2010 Volkswagen Golf

    1994 Mazda B2300

    1995 Mercury Sable

    2000 Infiniti I30

    1991 Ford Ranger

    Vehicle
    Store     Delete

    2000 Harley Davidson FXDWG Dyna Wide Glide

    2021 Harley Davidson FLRT Freewheeler

    Vehicle
    Store     Delete

    2011 Can-Am Commander 800R XT

    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

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2003 SC430
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.
    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    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
    Back

    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.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo