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Car Speakers for your 2003 SC430

Upgrading your factory car speakers to a quality pair of aftermarket car speakers will allow you to hear music in a whole new way. You'll be able to hear the high, background notes better, as well as the rich deep bass as the artist intended. Here you will find a wide selection of replacement and component car speakers for sale from name brand manufacturers.

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Products in these categories contain items that carry a guarantee to fit your Lexus SC430 (change vehicle)

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Kenwood KFC-1098RS

480W Peak (100W RMS) 4" RS Series 2-Way Coaxial 4-ohm Car Speakers

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480W Peak (100W RMS) 4" RS Series 2-Way Coaxial 4-ohm Car Speakers

• 240 watts Peak Each, 50 watts RMS Each
• 1" Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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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 $130.00
-16% $109.00 /pair

In stock

Limited time!

Cerwin-Vega V525

600W Peak (200W RMS) 5.25" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

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600W Peak (200W RMS) 5.25" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Free Speaker Accessory at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
1
$149.99 /pair

In stock

Limited time!

JL Audio C2-525x

120W RMS 5.25" C2 Series 2 Way Coaxial 4-ohm Car Speakers

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120W RMS 5.25" C2 Series 2 Way Coaxial 4-ohm Car Speakers

• 60 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Free Speaker Accessory at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
8
$279.99 /pair

In stock

Only 3 Left!

Limited time!

Kenwood eXcelon KFC-X135

320W Peak (80W RMS) 5.25" eXcelon Series 2 Way Coaxial 4-ohm Car Speakers

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320W Peak (80W RMS) 5.25" eXcelon Series 2 Way Coaxial 4-ohm Car Speakers

• 160 watts Peak Each, 40 watts RMS Each
• 1" Soft Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Free Speaker Accessory at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $180.00
Save $68.50
-38% $111.50 /pair

In stock

Only 3 Left!

JBL Stage2 45F (STAGE245F)

100W Peak (50W RMS) 6.5" Stage2 Gen 2 Series 2 Way Coaxial Speakers

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100W Peak (50W RMS) 6.5" Stage2 Gen 2 Series 2 Way Coaxial Speakers

• 40 watts Peak Each, 20 watts RMS Each
• PEI (Polyetherimide) Edge Driven Dome Tweeters
• Polypropylene cone material
• Sensitivity: 89 dB

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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 $69.00
-28% $49.99 /pair

In stock

Limited time!

Infinity REF507F (INFSPKRF507FUS)

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

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

• 135 watts Peak Each, 45 watts RMS Each
• Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $11.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
1
List price $139.95
-21% $109.95 /pair

In stock

Limited time!

Kenwood KFC-1066S

440W Peak (42W RMS) 4" Sport Series 2-Way Coaxial 4-ohm Car Speakers

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440W Peak (42W RMS) 4" Sport Series 2-Way Coaxial 4-ohm Car Speakers

• 220 watts Peak Each, 21 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
4
List price $80.00
Save 39%
-39% $49.00 /pair

In stock

Hertz SV 200L

1000W Peak (500W RMS) 8" SPL Show Series 4-ohm Midbass Component Woofers

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1000W Peak (500W RMS) 8" SPL Show Series 4-ohm Midbass Component Woofers

• 500 watts Peak Each, 250 watts RMS Each
• Pulp Cotton Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94.5 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
1
List price $405.00
-14% $349.99 /pair

In stock

Only 3 Left!

Like New from: $297.49
Limited time!

NVX VPRO8 (Sold Individually)

550W Peak (275W RMS) 8" V-Series Pro 2 Way Coaxial Loudspeaker

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550W Peak (275W RMS) 8" V-Series Pro 2 Way Coaxial Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• 1" Aluminum Bullet tweeter
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

Dads & Grads Sale! Save 15% at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $107.99
-31% $74.99

In stock

Only 1 Left!

Used from: $52.49

Cerwin-Vega XED42

300W Peak (40W RMS) 4" XED Series 2-Way Coaxial 4-ohm Speakers

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300W Peak (40W RMS) 4" XED Series 2-Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 20 watts RMS Each
• 3/4" Piezo Metal Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
4
List price $47.99
-17% $39.99 /pair

In stock

Limited time!

Cerwin Vega H752

550W Peak (80W RMS) 5.25” HED Series 2-Way Coaxial 4-ohm Speakers

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550W Peak (80W RMS) 5.25” HED Series 2-Way Coaxial 4-ohm Speakers

• 275 watts Peak Each, 40 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 82.5 dB

Free Speaker Accessory at Checkout!
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
5
List price $83.99
-17% $69.99 /pair

In stock

Limited time!

Alpine BRV-S80C

300W Peak (100W RMS) 8" BassRev Series 2-Way 4-ohm Component Speaker System

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300W Peak (100W RMS) 8" BassRev Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Teteron Dome Tweeters
• Polypropylene-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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VIP Product Get $30.40 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
1
List price $455.00
Save $151.05
-33% $303.95 /set

In stock

Cerwin-Vega XED52

550W Peak (60W RMS) 5.25" XED Series 2-Way Coaxial 4-ohm Speakers

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550W Peak (60W RMS) 5.25" XED Series 2-Way Coaxial 4-ohm Speakers

• 275 watts Peak Each, 30 watts RMS Each
• 1" Piezo Metal Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
7
List price $53.99
-17% $44.99 /pair

In stock

Hifonics ZS4CX

350W Peak (60W RMS) 4" Zeus Series 2-way 4-ohm Coaxial Car Speakers

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350W Peak (60W RMS) 4" Zeus Series 2-way 4-ohm Coaxial Car Speakers

• 175 watts Peak Each, 30 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
5
$22.99 /pair

In stock

Only 1 Left!

Kenwood KFC-1398RS

660W Peak (150W RMS) 5.25" RS Series 2-Way Coaxial 4-ohm Car Speakers

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660W Peak (150W RMS) 5.25" RS Series 2-Way Coaxial 4-ohm Car Speakers

• 330 watts Peak Each, 75 watts RMS Each
• 1" Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $130.00
-16% $109.00 /pair

In stock

PRV Audio 5MR450-NDY-4 (Sold Individually)

900W Peak (450W RMS) 5" MR Series Pro Audio Midrange 4-ohm Car Speaker

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900W Peak (450W RMS) 5" MR Series Pro Audio Midrange 4-ohm Car Speaker

• 900 watts Peak, 450 watts RMS
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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VIP Product Get $10.99 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $137.39
-20% $109.91

In stock

DS18 PRO-X8.4BM (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker

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550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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Install kits available for most vehicles

found car based on your search
Fits your SC430
1
$70.95

In stock

Used from: $49.67
Limited time!

Alpine S2-S50

340W Peak (110W RMS) 5.25" S-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

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340W Peak (110W RMS) 5.25" S-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

• 170 watts Peak Each, 55 watts RMS Each
• Hi-Res Audio Certified
• 3/4" Cloth Soft Dome tweeters
• Polypropylene, Glass Fiber and Mica cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $13.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
2
List price $160.00
-19% $129.95 /pair

In stock

Only 2 Left!

Limited time!

MB Quart DK2-110

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

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

• 80 watts Peak Each, 40 watts RMS Each
• Aluminum Inverted Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $6.00 in rewards to spend later

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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 $69.99
-14% $59.99 /pair

In stock

Hertz SV 200.1

1000W Peak (400W RMS) 8" SPL Show Series 4-ohm Midrange Car Speakers

SV 200.1 big
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1000W Peak (400W RMS) 8" SPL Show Series 4-ohm Midrange Car Speakers

• 500 watts Peak Each, 200 watts RMS Each
• Ultra-Light Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

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VIP Product Get $35.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $405.00
-14% $349.99 /pair

In stock

Only 1 Left!

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    FAQ Frequently asked questions in Car Speakers


    There are two main types of car speakers: component speakers and coaxial speakers. Component speakers consist of separate tweeters, midranges, and woofers, which can be installed in different locations in your car for the best sound quality. Coaxial speakers combine all three speakers into one unit, which is typically mounted in the door panels.
    The most common mistakes people make when installing car speakers include:
    1. Not using the correct speaker adapters: If your car speakers do not fit the factory mounting locations, you will need to use speaker adapters.
    2. Not connecting the speaker wires correctly: The speaker wires must be connected to the speakers and the car stereo in the correct order.
    3. Not securing the speakers in place: The speakers must be secured in place to prevent them from rattling or vibrating.
    4. Not testing the speakers after installation: It is important to test the speakers after installation to make sure they are working properly.
    There are many benefits to installing car speakers, including:
    1. Improved sound quality: Car speakers can significantly improve the sound quality of your car stereo.
    2. Increased bass response: Car speakers can provide you with deeper bass, which can make your music sound more powerful.
    3. Better clarity: Car speakers can provide you with clearer sound, which can make it easier to understand lyrics and other audio content.
    4. Increased volume: Car speakers can provide you with more volume, which can be helpful if you like to listen to your music loud.
    5. Customization: Car speakers can be customized to your specific needs, such as the type of music you listen to or the size of your car.
    The cost of installing car speakers can vary depending on the type of speakers you choose, the complexity of the installation, and the location where you have the speakers installed. In general, you can expect to pay anywhere from $50 to $300 to have car speakers installed.
    There are a few factors to consider when choosing car speakers, including:
    1. The type of music you listen to: If you listen to a lot of bass-heavy music, you will need speakers with good bass response. If you listen to a lot of classical music, you will need speakers with good clarity.
    2. The size of your car: If you have a small car, you will need smaller speakers. If you have a large car, you can get away with larger speakers.
    3. Your budget: Car speakers can range in price from a few dollars to a few hundred dollars. It is important to set a budget before you start shopping.
    4. The installation process: If you are not comfortable installing car speakers yourself, you may want to hire a professional.

    All About

    Car Speakers

    Upgrading your car speakers is a tried and true method to improve your sound system. A set of aftermarket speakers is able to handle a wider range of frequencies, giving the lower notes greater depth and making the higher notes sound more defined. 

    Aftermarket products are built with more durable and temperature resistant materials than the OEM (originally equipment manufacturer). For example, most auto speakers include a rubber or foam surround for enhanced durability. 

    Sonic Electronix’s selection includes various sizes of full-range 2-way, 3-way and  component speakers.

    The most important figure when gauging a speaker's quality is sensitivity rating. A sensitivity or efficiency 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 given a set amount of input power. An efficient speaker helps you maximize your available power. 

    Selecting the Proper Speaker for Your Application

    In order to select the proper set of speakers for your sound system, look at the RMS (root mean square) power-handling rating. The RMS power is the amount of power the speaker requires to operate safely. It also refers to the amount of power a speaker can handle on a continuous basis. Sonic Electronix recommends giving speakers 75 - 90% of its recommended RMS rating to help prevent blowing your speakers.

    Full-range car speakers – which contain all elements in one for lows, mids and highs feature a woofer and tweeter both molded into the speaker. Some include midrange drivers. 

    In contrast, component systems feature separate woofers and tweeters. This allows you to mount the tweeters in an optimal location for generating a more realistic sound. They also have midranges and external crossovers, which send separate frequencies to the woofer and the tweeter for a more efficient reproduction.

    Whether you're a car audio novice or the biggest audiophile on the block, you should be able to find a pair of speakers from our wide selection that will help you build the system of your dreams.

    Car Speaker Resources:

     

    Looking for a way to improve your car audio experience? Car speakers are the key to an amazing audio experience! With the right speakers, you can create a custom sound system that will make your car feel like a concert hall.

    Car speakers are the transducers that convert electrical signals into sound waves. They are the most important part of any car audio system, and they come in a variety of sizes, shapes, and power ratings.

    Advantages of Car Speakers

    There are many advantages to installing car speakers in your vehicle. Here are just a few:

    Improved sound quality: Car speakers can improve the sound quality of your car stereo by providing clearer highs, richer mids, and deeper bass.

    Increased volume: Car speakers can increase the volume of your car stereo, so you can enjoy your music louder and more clearly.

    Customization: Car speakers can be customized to match your specific needs and preferences. You can choose speakers that are the right size for your vehicle, the right power rating for your listening habits, and the right sound signature for your taste in music.

    Sonic Electronix is here to help you find the best car speakers for your vehicle. We offer a wide selection of speakers from the top brands in the industry, and our staff is knowledgeable and experienced. We can help you choose the right speakers for your needs and budget, and we can also install them for you.

    If you're looking for the best car speakers, don't hesitate to contact Sonic Electronix. We're here to help you create the perfect sound system for your vehicle.

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    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!
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    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.