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1981 Buick Century

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Overview 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 1981 Buick Century

Find speakers to upgrade your sound and fit in the factory speaker location for your Century.  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.

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Rear Wheel Well Speakers

Rear Wheel Well Speakers

Speakers for your rear wheel well.

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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.
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NVX NSP46

300W Peak (100W RMS) 4x6" N-Series 2 Way Coaxial Car Speakers

NSP46 big
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NVX NSP46

300W Peak (100W RMS) 4x6" 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: 1.81"

3+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
34
List price $59.99
-17% $49.99 /pair

In stock

Add to Cart
Continue to cart
Available Offers (3) for NVX NSP46
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Prime Time! Save 25% at Checkout!
List price $59.99
-17% $49.99
$37.49 with coupon | Price details
Add to cart
2026-06-28 23:59:00
Free Speaker Accessory at Checkout!
Add both to cart
Purchase $400 or More of NVX and Save 15%!
Add to cart
2026-07-27 11:08:20
See all 8 special offers
Limited time!

NVX VSP4 - Open Box, Great

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

VSP4 big
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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"

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
2
List price $71.99
-47% $38.49 /pair
$34.64 with coupon | Price details

In stock

Only 2 Left!

Add to Cart
See all 6 special offers
NVX - Worth the Envy - Direct to Consumer Car Audio
Limited time!

NVX VSP4 (2-Pairs, 4-Total)

900W Peak (300W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters (2-Pairs)

VSP4_2 big
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NVX VSP4 (2-Pairs, 4-Total)

900W Peak (300W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters (2-Pairs)

• 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"

Purchase $400 or More of NVX and Save 15%!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
17
List price $143.98
-21% $113.98

In stock

Add to Cart

• 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"

Limited time!

NVX VSP4 with Sound Damping

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

VSP4_SDBSK2 big
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NVX VSP4 with Sound Damping

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 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"

Purchase $400 or More of NVX and Save 15%!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
65
List price $90.73
-22% $70.48

In stock

Add to Cart

• 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"

Limited time!

NVX NSP46 (2-Pairs, 4-Total)

600W Peak (200W RMS) 4x6" 2-Way N-Series Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

NSP46_2 big
Go to item page Right Arrow Icon of Right Arrow

NVX NSP46 (2-Pairs, 4-Total)

600W Peak (200W RMS) 4x6" 2-Way N-Series Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.81"

Purchase $400 or More of NVX and Save 15%!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
34
List price $119.98
-21% $94.98

In stock

Add to Cart

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.81"

Limited time!

NVX VSP4 with Speaker Installation Kit

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

VSP4, FRING4, SDRLR1, SDSK2, BTK106 big
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NVX VSP4 with Speaker Installation Kit

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"

Purchase $400 or More of NVX and Save 15%!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
161
List price $143.70
-33% $96.59 /pair

In stock

Add to Cart

• 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"

Limited time!

NVX NSP46 Speakers with Speaker Installation Kit

300W Peak (100W RMS) 4" x 6" 2-Way N-Series Coaxial Car Speakers with Speaker Baffles, Sound Dampening, Panel Removal Kit and Heavy Duty Roller

NSP46, FRING46, SDSK2, SDRLR1, BTK106 big
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NVX NSP46 Speakers with Speaker Installation Kit

300W Peak (100W RMS) 4" x 6" 2-Way N-Series Coaxial Car Speakers with Speaker Baffles, Sound Dampening, Panel Removal Kit and Heavy Duty Roller

• Peak Power: 150W Each
• RMS Power: 50W Each
• Real Wattage Certified. Not inflated/overrated.
• 2-Way Coaxial
• 4 ohm Impedance
• Polypropylene Cone Material
• Nitrile Butadiene Rubber Surround
• 20mm Silk Dome Tweeter

Purchase $400 or More of NVX and Save 15%!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
175
List price $132.70
-35% $85.82 /pair

In stock

Add to Cart

• Peak Power: 150W Each
• RMS Power: 50W Each
• Real Wattage Certified. Not inflated/overrated.
• 2-Way Coaxial
• 4 ohm Impedance
• Polypropylene Cone Material
• Nitrile Butadiene Rubber Surround
• 20mm Silk Dome Tweeter

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"

3+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $6.00 in rewards to spend later

install icon

Install kits available for most vehicles

additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
17
List price $71.99
-17% $59.99 /pair

In stock

Add to Cart
Continue to cart
Available Offers (3) for NVX VSP4
Offer image
Prime Time! Save 25% at Checkout!
List price $71.99
-17% $59.99
$44.99 with coupon | Price details
Add to cart
2026-06-28 23:59:00
Free Speaker Accessory at Checkout!
Add both to cart
Purchase $400 or More of NVX and Save 15%!
Add to cart
2026-07-27 11:08:20
Used from: $38.49
See all 8 special offers
Limited time!

NVX NSP410 with Sound Damping

480W Peak (160W RMS) 4x10" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP410_SDBSK2 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX NSP410 with Sound Damping

480W Peak (160W RMS) 4x10" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Purchase $400 or More of NVX and Save 15%!
additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
50
List price $90.73
-22% $70.48
Notify Me

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Limited time!

NVX NSP410 (2-Pairs, 4-Total)

960W Peak (320W RMS) 4x10" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

NSP410_2 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX NSP410 (2-Pairs, 4-Total)

960W Peak (320W RMS) 4x10" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters (2-Pairs)

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Purchase $400 or More of NVX and Save 15%!
additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
2
List price $143.98
-21% $113.98
Notify Me

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Limited time!

NVX NSP410 with Speaker Installation Kit

240W Peak (160W RMS) 4"x10" Coaxial Speakers + NVX Sound Dampening, Roller, and Panel Removal Kit

NSP410, SDSK2, SDRLR1, BTK106 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX NSP410 with Speaker Installation Kit

240W Peak (160W RMS) 4"x10" Coaxial Speakers + NVX Sound Dampening, Roller, and Panel Removal Kit

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Purchase $400 or More of NVX and Save 15%!
install icon

Install kits available for most vehicles

additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
142
List price $124.71
-30% $87.26 /pair
Add to Cart

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Limited time!

NVX NSP410

480W Peak (160W RMS) 4x10" N-Series 2 Way Coaxial Car Speakers

NSP410 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX NSP410

480W Peak (160W RMS) 4x10" 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: 86 dB

Purchase $400 or More of NVX and Save 15%!
install icon

Install kits available for most vehicles

additional information required
Fits select locations in your Century.
Add vehicle details to confirm exact location.
2
List price $71.99
-17% $59.99 /pair
Notify Me

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

NVX - Worth the Envy - Direct to Consumer Car Audio
 
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    FAQ for Speakers in 1981 Century

    Q: Can I upgrade or change the Speakers in 1981 Buick Century?

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

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