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2003 Lexus SC430

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Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Speakers & Speaker Installation for 2003 Lexus SC430

Find speakers to upgrade your sound and fit in the factory speaker location for your SC430.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Behind Seat Speakers

Behind Seat Speakers

Speakers for behind the seat

Lower Front Door

Lower Front Door Speakers

Speakers for your lower front door.

Rear Seat Side Panel Speakers

Rear Seat Side Panel Speakers

Speakers for your rear seat side panel.

Upper Front Door Speakers

Upper Front Door Speakers

Speakers for your upper front door.

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Dads & Grads Sale

Free Gear / Open-Box Deals / Huge Discounts up to 40% off Car / Marine / ATV Audio

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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.
PRO-X Series (34)
Reference Series (27)
V Series (20)
Punch Series (16)
S Series (16)
ZXI Series (14)
Polk DB+ Series (13)
PRO Series (13)
Machete Series (12)
Primus Series (12)
XED Series (12)
Dieci Series (10)
Kappa Series (10)
N-Series (10)
Stage Series (10)
Club Series (9)
G-Series (TSG) (9)
HED Series (9)
PRO-GM Series (9)
Zeus Series (9)
Cento Series (8)
DMD Series (8)
PNW Series (8)
Prime Series (8)
SPL (8)
SPL Show Series (8)
A Series (7)
NEO Series (7)
EQ Series (6)
Terminator Series (6)
C2 Series (5)
CS Series (5)
Sport Series (5)
Thunder Series (5)
Apocalypse Series (4)
C1 Series (4)
DRVN Series (4)
EXL Series (4)
Formula Series (4)
Gen-X (4)
MSNEO Series (4)
Power Series (4)
Premium Series (4)
PS Series (4)
Signature Series (4)
Street Reference Pro (4)
Stroker Pro Series (4)
VEX Series (4)
XL Series (4)
8PRO Series (3)
BASSREV Series (3)
DS Series (3)
GT7 Series (3)
GX Series (3)
KS Series (3)
M Series (3)
MAS Series (3)
MC Series (3)
MSPRO Series (3)
MX Series (3)
Prime Series (3)
PRO-FR Series (3)
PRO-HY Series (3)
Stadium Series (3)
Stage 3 Series (3)
Uno Series (3)
VEGA Series (3)
C3 Series (2)
Colossus Classic Series (2)
Discus Series (2)
DMDX Series (2)
DR Series (2)
Elite Series (2)
Focus Series (2)
Godfather Series (2)
Hannibal Series (2)
KFC Series (2)
LCMR Series (2)
MA Series (2)
MotorSport Series (2)
MR Series (2)
PANCADÃO Series (2)
PRO-NS Series (2)
PRO-SM Series (2)
Punch P1 Series (2)
Punch Pro Series (2)
Reserve Series (2)
RS Series (2)
SQ Series (2)
Stage 3 Gen 2 Series (2)
Thunder Dome Series (2)
VTEK Series (2)
Black Hydra Series (1)
CVPRO Series (1)
CVPX Series (1)
CX 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)
Hawk Series (1)
HED Pro Series (1)
MM Series (1)
NEO SPL Series (1)
Octagonal Series (1)
Polk Audio MM1 Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-CF Series (1)
PRO-ZT Series (1)
Rage Series (1)
Road Thunder Extreme Series (1)
SA Series (1)
Stadium (1)
Stage 2 Gen 2 Series (1)
Stallion Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
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DS18 PRO-SM8.4 (Sold Individually)

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

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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

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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
$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

Earthquake Sound EQ8-8 (Sold Individually)

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

EQ8-8 big
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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

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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 $90.00
-28% $64.99

In stock.

Add to Cart
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Limited time!

MTX SS5

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

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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!
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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
$499.95 /set

Available

Ships in 10-14 days

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NVX VADM4 Amplifier + 5.25" NVX Speakers

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

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NVX VADM4 Amplifier + 5.25" NVX Speakers

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

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List price $371.97
-27% $269.97

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• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

Earthquake Sound EQ800NEO (Sold Individually)

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

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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

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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
$225.00

In stock.

Add to Cart

DS18 PRO-X4M (Sold Individually)

200W Peak (100W RMS) 4" PRO-X Series 8-ohm Mid-range Speaker

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DS18 PRO-X4M (Sold Individually)

200W Peak (100W RMS) 4" PRO-X Series 8-ohm Mid-range Speaker

• 200 watts Peak Each, 100 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 85.7 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
$37.95

In stock.

Add to Cart

Deaf Bonce Black Hydra Delta 513X

240W Peak (140W RMS) 5.25" Black Hydra Series 2 Way Coaxial 4-ohm Speakers

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Deaf Bonce Black Hydra Delta 513X

240W Peak (140W RMS) 5.25" Black Hydra Series 2 Way Coaxial 4-ohm Speakers

• 120 watts Peak Each, 60 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 87.4 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
$49.90 /pair

Available

Ships in 10-14 days

Add to Cart
See all 12 special offers

Earthquake Sound EQ8-4 (Sold Individually)

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

EQ8-4 big
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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.
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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 $85.00
-35% $54.99

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

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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

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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 $209.88
-39% $127.68

In stock.

Add to Cart
See all 5 special offers

DS18 8OCT400-8 (Sold Individually)

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

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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

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VIP Product Get $11.50 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
$114.95

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

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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.
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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
$64.90 /pair

Available

Ships in 10-14 days

Add to Cart
See all 5 special offers

Diamond Audio MP84

800W Peak (400W RMS) 8" Motorsport Series Pro Audio Full Range Coaxial Horn Speakers

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Diamond Audio MP84

800W Peak (400W RMS) 8" Motorsport Series Pro Audio Full Range Coaxial Horn Speakers

• 400 watts Peak Each, 200 watts RMS Each
• 1" Horn tweeters
• Impedance:
• Sensitivity: 103 dB

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VIP Product Get $55.00 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
$549.99 /pair

In stock.

Add to Cart
See all 5 special offers

American Bass SYMPHONY 5.25 FR

300W Peak (150W RMS) 5.25" Symphony Series 2 Way Coaxial 4-ohm Speakers

SYMPHONY-5.25-FR big
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American Bass SYMPHONY 5.25 FR

300W Peak (150W RMS) 5.25" Symphony Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• Neodymium Cone tweeters
• cone material
• Impedance: 4 ohm
• 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
  • Lower Front Door
List price $70.45
-34% $46.28 /pair

In stock.

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
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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

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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
$74.90 /pair

Available

Ships in 10-14 days

Add to Cart
See all 5 special offers

Deaf Bonce Machete MFX-50

200W Peak (100W RMS) 5.25" Machete Series 2 Way Coaxial 4-ohm Speakers

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Deaf Bonce Machete MFX-50

200W Peak (100W RMS) 5.25" Machete Series 2 Way Coaxial 4-ohm Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Dome Tweeters
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 90 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
$39.90 /pair

Available

Ships in 10-14 days

Add to Cart

Massive Audio MM8A

340W Peak (170W RMS) 8" MM Series Midrange 4-ohm Speaker

MM8A big
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Massive Audio MM8A

340W Peak (170W RMS) 8" MM Series Midrange 4-ohm Speaker

• 340 watts Peak, 170 watts RMS
• Hardened Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92.4 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
List price $102.98
-22% $79.99

Available

Ships in 10-14 days

Add to Cart
See all 5 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
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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

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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 $73.38
-31% $50.81

In stock.

Add to Cart
See all 5 special offers

American Bass GF-8CC-MR (Sold Individually)

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

GF-8CC-MR big
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American Bass GF-8CC-MR (Sold Individually)

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

• 400 watts RMS
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 95 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
  • Behind Seat
List price $118.50
-48% $61.66

In stock.

Add to Cart
See all 5 special offers

Diamond Audio MS8NEO

1400W Peak (700W RMS) 8″ MSNEO Series 4-ohm Midrange Car Speakers

MS8NEO big
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Diamond Audio MS8NEO

1400W Peak (700W RMS) 8″ MSNEO Series 4-ohm Midrange Car Speakers

• 700 watts Peak Each, 350 watts RMS Each
• Waterproof DUPONT™ Kevlar 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 the following location in your SC430
  • Behind Seat
$799.99 /pair

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
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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
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    FAQ for Speakers in 2003 SC430

    Q: Can I upgrade or change the Speakers in 2003 Lexus SC430?

    A: Yes this page includes all the best Speakers that work in your SC430.

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