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DS18 PRO-FR6NEO (Sold Individually) - Open Box, Great

450W Peak (225W RMS) 6.5” PRO-FR Series 4-ohm Full-Range Bullet Loudspeaker

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450W Peak (225W RMS) 6.5” PRO-FR Series 4-ohm Full-Range Bullet Loudspeaker

• Peak Each, RMS Each
• Tweeters
• cone material
• Impedance:
• Sensitivity:

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List price $143.95
-15% $122.36

In stock

• Peak Each, RMS Each
• Tweeters
• cone material
• Impedance:
• Sensitivity:

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JL Audio C2-600x (Open Box, Great)

200W Peak (120W RMS) 6” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

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200W Peak (120W RMS) 6” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

• 100 watts Peak Each, 60 watts RMS Each
• 3/4" Silk Dome tweeters with ferrofluid cooling
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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Install kits available for most vehicles

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List price $279.99
-30% $195.49 /pair

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NVX - Worth the Envy - Direct to Consumer Car Audio

Rockford Fosgate Power T3652-S + FREE $200 Gift Card

500W Peak (250W RMS) 6.5" 2-Way T3 Power Series Component Speaker System

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500W Peak (250W RMS) 6.5" 2-Way T3 Power Series Component Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters with neodymium motor
• LCP (Liquid Crystal Polymer) fiber cone cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

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8
List price $1499.99
-13% $1,299.99 /set

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Ships in 10-14 days

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters with neodymium motor
• LCP (Liquid Crystal Polymer) fiber cone cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

Rockford Fosgate T16 (Open Box, Great)

280W Peak (140W RMS) 6" Power Series 2-way 4-ohm Coaxial Car Speakers

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280W Peak (140W RMS) 6" Power Series 2-way 4-ohm Coaxial Car Speakers

• 140 watts Peak Each, 70 watts RMS Each
• 1" Aluminum Dome tweeters
• Carbon Fiber and Injection-molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $219.99
-15% $186.99 /pair

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Diamond Audio DMD42 with Speaker Installation Kit

Includes: (2) 4” 2-Way speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

DMD42, FRING4, SDRLR1, SDSK2, BTK106 big
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Includes: (2) 4” 2-Way speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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Install kits available for most vehicles

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144
List price $191.70
-24% $146.52 /pair

In stock.

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Rockford Fosgate Punch P142 (Open Box, Great)

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers

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120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

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Install kits available for most vehicles

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11
List price $109.99
-15% $93.49 /pair

In stock

Diamond Audio DES365C with Speaker Installation Kit

280W Peak (140W RMS) 6.5" Elite Series 3-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

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280W Peak (140W RMS) 6.5" Elite Series 3-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 140 watts Peak Each, 70 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Install kits available for most vehicles

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257
$593.52 /set

In stock.

• 140 watts Peak Each, 70 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio HXPRO653DI with Speaker Installation Kit

340W Peak (170W RMS) 6-3/4" HEX Series 2-Way Component Speakers + Sound Dampening, Roller and Panel Removal Kit

H600S, SDSK2, SDRLR1, BTK106 big
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340W Peak (170W RMS) 6-3/4" HEX Series 2-Way Component Speakers + Sound Dampening, Roller and Panel Removal Kit

• 170 watts Peak Each, 85 watts RMS Each
• 1" Silk Dome Tweeters
• Kevlar composite hexagonal honeycomb cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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140
$778.13 /set

In stock.

• 170 watts Peak Each, 85 watts RMS Each
• 1" Silk Dome Tweeters
• Kevlar composite hexagonal honeycomb cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio DE65C with Speaker Installation Kit

340W Peak (170W RMS) 6" HEX Series 2-Way Component Speaker System + Sound Dampening, Roller and Panel Removal Kit

H600A, SDSK2, SDRLR1, BTK106 big
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340W Peak (170W RMS) 6" HEX Series 2-Way Component Speaker System + Sound Dampening, Roller and Panel Removal Kit

• 170 watts Peak Each, 85 watts RMS Each
• 1" Neodymium Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Install kits available for most vehicles

found car based on your search
Fits your Regal
140
$778.13 /set

In stock.

• 170 watts Peak Each, 85 watts RMS Each
• 1" Neodymium Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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JL Audio C2650 - Open Box, Great

450W 6.5" 2-Way Evolution C2 Series Component Car Speakers System

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450W 6.5" 2-Way Evolution C2 Series Component Car Speakers System

• Peak Power: 225 watts per channel
• RMS Power: 60 watts per channel
• 0.75" Silk Dome Tweeter
• Injection Molded, Mica-filled Polypropylene Cone
• 3-Position Adjustable Tweeter Level
• 4 Ohm Impedance
• Sensitivity: 91.0 dB @ 1 watt / 1 meter

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21
List price $329.99
-42% $191.24 /set

In stock

• Peak Power: 225 watts per channel
• RMS Power: 60 watts per channel
• 0.75" Silk Dome Tweeter
• Injection Molded, Mica-filled Polypropylene Cone
• 3-Position Adjustable Tweeter Level
• 4 Ohm Impedance
• Sensitivity: 91.0 dB @ 1 watt / 1 meter

JL Audio C1-400x (Open Box, Great)

100W Peak (70W RMS) 4" C1 Series 2-Way 4-ohm Coaxial Car Speakers

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100W Peak (70W RMS) 4" C1 Series 2-Way 4-ohm Coaxial Car Speakers

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk-suspended aluminum Edge-Driven Dome Tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

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Install kits available for most vehicles

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  • Front Door
8
List price $94.99
-15% $80.74 /pair

In stock

Rockford Fosgate P1650 - Open Box, Great

220W Max (110W RMS) 6.5" 2-Way P1 Punch Series Coaxial Speakers w/ PEI Dome Tweeter

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220W Max (110W RMS) 6.5" 2-Way P1 Punch Series Coaxial Speakers w/ PEI Dome Tweeter

• Peak Power: 220W per set
• RMS Power: 110W per set
• 3/4" PEI Dome Tweeter
• Mounting Depth: 2-1/4"
• Injection-Molded Carbon Fiber Filled Polypropylene Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 88dB

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61
List price $109.99
-15% $93.49 /pair

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JBL GTO629

360W Peak (120W RMS) 6.5" GTO Series 2-Way Full Range Coaxial 3-ohm Car Speakers

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360W Peak (120W RMS) 6.5" GTO Series 2-Way Full Range Coaxial 3-ohm Car Speakers

• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Edge Driven Dome Tweeters
• Carbon-injected cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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38
List price $180.00
-34% $117.99 /pair

In stock

Used from: $75.99

JL Audio C1-650 (Open Box, Great)

150W RMS 6.5" Evolution C1 Series 2-way 4-ohm Component Car Speakers

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150W RMS 6.5" Evolution C1 Series 2-way 4-ohm Component Car Speakers

• 75 watts RMS Each
• 3/4" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

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31
List price $159.99
-15% $135.99 /set

In stock

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JL Audio C2-650 (Open Box, Great)

200W RMS 6.5" Evolution C2 Series 2-way 4-ohm Component Speaker System

C2-650 big
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200W RMS 6.5" Evolution C2 Series 2-way 4-ohm Component Speaker System

• 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

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21
List price $329.99
-34% $216.74 /set

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Rockford Fosgate Punch P16-S (Open Box, Great)

240W Peak (120W RMS) 6" Punch Series 2-way 4-ohm Component Speakers System

P16-S big
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240W Peak (120W RMS) 6" Punch Series 2-way 4-ohm Component Speakers System

• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters with recessed mount
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.2 dB

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Install kits available for most vehicles

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List price $159.99
-15% $135.99 /set

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Rockford Fosgate T1650-S (Open Box, Great)

320W Peak (160W RMS) 6.5" Power Series 2-way 4-ohm Euro-Fit Component Speaker System

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320W Peak (160W RMS) 6.5" Power Series 2-way 4-ohm Euro-Fit Component Speaker System

• 160 watts Peak Each, 80 watts RMS Each
• 1" Treated Fabric Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $379.99
-15% $322.99

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JL Audio C2-650x (Open Box, Great)

200W Peak (120W RMS) 6.5" Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

C2-650X big
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200W Peak (120W RMS) 6.5" Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

• 100 watts Peak Each, 60 watts RMS Each
• 3/4" Silk Dome tweeters with ferrofluid cooling and neodymium magnets
• Mica Injected Polypropylene - MIPP 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 your Regal
26
List price $279.99
-30% $195.49 /pair

In stock

Rockford Fosgate Power T1650 (Open Box, Great)

300W Peak (150W RMS) 6.5" Power Series 2-way 4-ohm Coaxial Car Speakers

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300W Peak (150W RMS) 6.5" Power Series 2-way 4-ohm Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Injection-molded Carbon Fiber-filled Polypropylene cone material with Vertical Attach Surround Technique (VAST)
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Install kits available for most vehicles

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10
List price $219.99
-15% $186.99 /pair

In stock

Lowest price in 30 days

JL Audio C2-400x (Open Box, Great)

100W Peak (70W RMS) 4” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

C2-400X big
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100W Peak (70W RMS) 4” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk Dome Tweeters
• 2 speaker grilles included
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Regal
  • Front Door
9
List price $189.99
-26% $140.24 /pair

In stock

NVX - Worth the Envy - Direct to Consumer Car Audio

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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!
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    FAQ for Speakers in 1981 Regal

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

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

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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.