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  5. NVX All Car Speakers

All NVX Car Speakers for your 2003 SC430 close

All car speakers from NVX are built with listeners in mind while using high quality components.

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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.
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2003 SC430
Speakers guaranteed to fit your vehicle.
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NVX VSPTW

450W Peak (150W RMS) 1" V-Series Silk Dome Tweeters with External Crossovers

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NVX VSPTW

450W Peak (150W RMS) 1" V-Series Silk Dome Tweeters with External Crossovers

• 1" V Series Dome Tweeters
• 225 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Upper Front Door
29
List price $79.99
-31% $54.99 /pair

In stock

Add to Cart
See all 5 special offers

NVX VSP525

480W Peak (160W RMS) 5.25" V-Series 2 Way Coaxial Car Speakers

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NVX VSP525

480W Peak (160W RMS) 5.25" V-Series 2 Way Coaxial Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.16"

2+ offers available
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VIP Product Get $8.00 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
23
List price $95.99
-17% $79.99 /pair

In stock

Add to Cart
Continue to cart
Available Offers (2) for NVX VSP525
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Dads & Grads Sale! Save 15% at Checkout!
List price $95.99
-17% $79.99
$67.99 with coupon | Price details
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2026-06-30 23:59:00
Free Speaker Accessory at Checkout!
Add both to cart
Used from: $47.99 Like New from: $74.99
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NVX VSP525KIT

750W Peak (250W RMS) 5.25" V-Series 2 Way Component Car Speakers

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NVX VSP525KIT

750W Peak (250W RMS) 5.25" V-Series 2 Way Component Car Speakers

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

2+ offers available
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VIP Product Get $10.00 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
27
List price $119.99
-17% $99.99 /set

In stock

Add to Cart
Continue to cart
Available Offers (2) for NVX VSP525KIT
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Dads & Grads Sale! Save 15% at Checkout!
List price $119.99
-17% $99.99
$84.99 with coupon | Price details
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2026-06-30 23:59:00
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Limited time!

NVX VPRO8BM (Sold Individually)

500W Peak (250W RMS) 8" V-Series Pro Midrange Loudspeaker

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NVX VPRO8BM (Sold Individually)

500W Peak (250W RMS) 8" V-Series Pro Midrange Loudspeaker

• 500 watts Peak Each, 250 watts RMS Each
• 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
1
List price $83.99
-40% $49.99

In stock

Add to Cart
Used from: $48.99
See all 9 special offers

NVX NSP4 - Open Box, Great

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters

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NVX NSP4 - Open Box, Great

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

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
  • Rear Seat Side Panel
3
List price $49.99
-44% $27.99 /pair

In stock

Only 2 Left!

Add to Cart
See all 5 special offers

NVX VSP4 - Open Box, Great

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters

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NVX VSP4 - Open Box, Great

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters

• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

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
1
List price $71.99
-47% $38.49 /pair

In stock

Only 2 Left!

Add to Cart
See all 6 special offers

NVX NSP525 - Open Box, Great

240W Peak (160W RMS) 5.25" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters

NSP525 big
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NVX NSP525 - Open Box, Great

240W Peak (160W RMS) 5.25" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 1.96"

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 $71.99
-31% $49.99 /pair

In stock

Add to Cart
See all 9 special offers

NVX VPRO8 (Sold Individually) (Open Box, Great)

550W Peak (275W RMS) 8" V-Series Pro 2-Way Water Resistant Coaxial Loudspeaker with Bullet Tweeter

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NVX VPRO8 (Sold Individually) (Open Box, Great)

550W Peak (275W RMS) 8" V-Series Pro 2-Way Water Resistant Coaxial Loudspeaker with Bullet Tweeter

• 275 watts RMS
• 1" Aluminum Dome Bullet Tweeter
• Treated 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
List price $107.99
-51% $52.49

In stock

Only 1 Left!

Add to Cart
See all 4 special offers

NVX VSP525 - Like New (Open Box)

480W Peak (160W RMS) 5.25" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters

VSP525 big
Go to item page Right Arrow Icon of Right Arrow

NVX VSP525 - Like New (Open Box)

480W Peak (160W RMS) 5.25" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.16"

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 $95.99
-22% $74.99 /pair

In stock

Only 1 Left!

Add to Cart

NVX VPRO8BM (Sold Individually) (Open Box, Great)

500W Peak (250W RMS) 8" V-Series Pro Midrange Loudspeaker with Bullet Aluminum Phase Plug

VPRO8BM big
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NVX VPRO8BM (Sold Individually) (Open Box, Great)

500W Peak (250W RMS) 8" V-Series Pro Midrange Loudspeaker with Bullet Aluminum Phase Plug

• 250 watts RMS
• Bullet Aluminum Phase Plug
• Competition Grade 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
List price $83.99
-42% $48.99

In stock

Only 2 Left!

Add to Cart
See all 4 special offers

NVX VSP525 - Open Box, Good

480W Peak (160W RMS) 5.25" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters

VSP525 big
Go to item page Right Arrow Icon of Right Arrow

NVX VSP525 - Open Box, Good

480W Peak (160W RMS) 5.25" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.16"

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 $95.99
-50% $47.99 /pair

In stock

Only 1 Left!

Add to Cart
Limited time!

NVX NSP4

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers

NSP4 big
Go to item page Right Arrow Icon of Right Arrow

NVX NSP4

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

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
  • Rear Seat Side Panel
25
List price $59.99
-25% $44.99 /pair

In stock

Add to Cart
Used from: $27.99
See all 8 special offers
Limited time!

NVX NSP525

240W Peak (160W RMS) 5.25" N-Series 2 Way Coaxial Car Speakers

NSP525 big
Go to item page Right Arrow Icon of Right Arrow

NVX NSP525

240W Peak (160W RMS) 5.25" N-Series 2 Way Coaxial Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 1.96"

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

VIP Product Get $5.50 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
  • Lower Front Door
27
List price $65.99
-17% $54.99 /pair

In stock

Add to Cart
Used from: $49.99
See all 12 special offers

NVX VSP4

450W Peak (150W RMS) 4" V-Series 2 Way Coaxial Car Speakers

VSP4 big
Go to item page Right Arrow Icon of Right Arrow

NVX VSP4

450W Peak (150W RMS) 4" V-Series 2 Way Coaxial Car Speakers

• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

2+ offers available
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
17
List price $65.99
-17% $54.99 /pair

In stock

Add to Cart
Continue to cart
Available Offers (2) for NVX VSP4
Offer image
Dads & Grads Sale! Save 15% at Checkout!
List price $65.99
-17% $54.99
$46.74 with coupon | Price details
Add to cart
2026-06-30 23:59:00
Free Speaker Accessory at Checkout!
Add both to cart
Used from: $38.49
See all 8 special offers

NVX VPRO35TW

240W Peak (120W RMS) 3.5" V-Series Pro Audio Super Slim Bullet Tweeters

VPRO35TW big
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NVX VPRO35TW

240W Peak (120W RMS) 3.5" V-Series Pro Audio Super Slim Bullet Tweeters

• 3.5" Pro Audio Bullet Tweeters
• 240 watts Peak Each
• 120 watts RMS Each
• 4 ohm Impedance

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

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1
List price $47.99
-38% $29.99

In stock

Add to Cart
See all 5 special offers
Limited time!

NVX VPRO8 (Sold Individually)

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

VPRO8 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX VPRO8 (Sold Individually)

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!
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 $107.99
-31% $74.99
Add to Cart
Used from: $52.49

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

 
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    NVX All Car Speakers Information

    NVX car speakers are engineered to meet the highest audio standards in the challenging environment of a car. NVX has a high quality option in all common sizes, making it easy to find a pair of NVX speakers that fit your car. NVX speakers, like the V-Series and X-Series, are available in component systems as well as coaxial speakers, enabling them to work well in virtually any environment.
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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