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MB Quart PK1-116

220W Peak (110W RMS) 6.5" Premium Series 2-Way 4-ohm Coaxial Car Speakers

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220W Peak (110W RMS) 6.5" Premium Series 2-Way 4-ohm Coaxial Car Speakers

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome tweeters
• Tunable waveguide tweeter housing
• Pop Paper-Mica Blend cone material
• Curvilinear cone design geometry
• Impedance: 4 ohm
• Sensitivity: 88.5 dB

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List price $189.99
-14% $162.99 /pair

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Hertz MLK 165.3 Legend

600W Peak (300W RMS) 6.5" Mille Legend Series 2-way 4-ohm Component Speaker System

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600W Peak (300W RMS) 6.5" Mille Legend Series 2-way 4-ohm Component Speaker System

• 300 watts Peak Each, 150 watts RMS Each
• Tetolon Dome tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $1175.00
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Diamond Audio MP654

300W Peak (150W RMS) 6.5" Motorsport Series Pro Audio Coaxial Horn 4-ohm Speakers

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300W Peak (150W RMS) 6.5" Motorsport Series Pro Audio Coaxial Horn 4-ohm Speakers

• 300 watts Peak Each, 150 watts RMS Each
• 1" Horn tweeters
• Impedance: 4 ohm
• Sensitivity: 101 dB

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$439.99 /pair

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Hertz DCX130.3

160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

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160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 0.6" PEI (Polyetherimide) Dome tweeters with neodynium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Infinity Kappa 53XF (INFSPKKA53XFAM)

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

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360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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Precision Power (PPI) MAS.524

150W RMS 5.25" MAS Series 2 Way Coaxial 4-ohm Motorcycle Speakers

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150W RMS 5.25" MAS Series 2 Way Coaxial 4-ohm Motorcycle Speakers

• Peak Each, 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $349.99
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• Peak Each, 75 watts RMS Each
• 1" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Deaf Bonce Machete MFH-60

200W Peak (100W RMS) 6.5" Machete Series 4-ohm Full Range Car Speakers

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200W Peak (100W RMS) 6.5" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91.9 dB

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$44.90 /pair

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Sundown Audio ECX 6.5 (ECX6.5)

50W RMS 6.5" ECX Series 2 Way Coaxial Pro Audio 4-ohm Speaker (S-ECX6.5)

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50W RMS 6.5" ECX Series 2 Way Coaxial Pro Audio 4-ohm Speaker (S-ECX6.5)

• 50 watts RMS Each
• Horn Tweeters
• Impedance: 4 ohm
• Sensitivity: 94 dB

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List price $71.99
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JL Audio C3-525

300W Peak (150W RMS) 5.25" C3 Series 2-Way 4-ohm Component Speaker System

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300W Peak (150W RMS) 5.25" C3 Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 2-way convertible speakers from component to coaxial
• 1" Silk Soft Dome tweeters with ferrofluid cooling and damping
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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$529.99 /set

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MB Quart FKB113

180W Peak (90W RMS) 5.25" Formula Series 2-Way 4-ohm Coaxial Car Speakers

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180W Peak (90W RMS) 5.25" Formula Series 2-Way 4-ohm Coaxial Car Speakers

• 90 watts Peak Each, 45 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $69.99
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Infinity Primus 503CF (PR503CF)

300W Peak (100W RMS) 5.25” Primus Series 2 Way 3-ohm Component Speaker System

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300W Peak (100W RMS) 5.25” Primus Series 2 Way 3-ohm Component Speaker System

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

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Orion HCCA64NDC

2800W Peak (700W RMS) 6.5" HCCA Series Pro Audio Midrange 4-ohm Speaker

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2800W Peak (700W RMS) 6.5" HCCA Series Pro Audio Midrange 4-ohm Speaker

• 1400 watts Peak Each, 350 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

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Kenwood KFC-1366S

520W Peak (60W RMS) 5.25" Sport Series 2 Way Coaxial 4-ohm Car Speakers

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520W Peak (60W RMS) 5.25" Sport Series 2 Way Coaxial 4-ohm Car Speakers

• 260 watts Peak Each, 30 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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JVC CS-DR601C

720W Peak (120W RMS) 6.5" DRVN DR Series 2-Way 4-ohm Component Speaker System

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720W Peak (120W RMS) 6.5" DRVN DR Series 2-Way 4-ohm Component Speaker System

• 360 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Soundstream RS.42

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

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

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" Woven Poly-nylon Synthetic Hemispherical tweeters
• Natural Pulp Fiber Cone with Mica Crystalline Additive cone material
• Impedance: 4 ohm
• Sensitivity: 84.3 dB

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Pioneer TS-A1301C

600W Peak (100W RMS) 5.25" A-Series 2-Way 4-ohm Component Speakers

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600W Peak (100W RMS) 5.25" A-Series 2-Way 4-ohm Component Speakers

• 300 watts Peak Each, 50 watts RMS Each
• 1-3/16" Polyetherimide Hard Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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JBL Arena X (JBLSPKAXAM)

400W Peak (200W) 6.5" Arena Series 3 Way 4-ohm Component Speaker System

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400W Peak (200W) 6.5" Arena Series 3 Way 4-ohm Component Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 1" Beryllium Edge Driven Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Beryllium Edge Driven Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Diamond Audio MSPRO65

800W Peak (400W RMS) 6.5" MSPRO Series Pro Audio Midrange 4-ohm Speakers

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800W Peak (400W RMS) 6.5" MSPRO Series Pro Audio Midrange 4-ohm Speakers

• 400 watts Peak Each, 200 watts RMS Each
• Water-Resistant Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

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Deaf Bonce Machete MFX-60

200W Peak (100W RMS) 6.5" Machete Series 2 Way Coaxial 4-ohm Speakers

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200W Peak (100W RMS) 6.5" Machete Series 2 Way Coaxial 4-ohm Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Paper Fiber with Mica Coating cone material
• Impedance: 4 ohm
• Sensitivity: 91.6 dB

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Hifonics HCC4CX

150W Peak (80W RMS) 4" Colossus Classic Series 2 Way Coaxial 4-ohm Speakers

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150W Peak (80W RMS) 4" Colossus Classic Series 2 Way Coaxial 4-ohm Speakers

• 75 watts Peak Each, 40 watts RMS Each
• 1" Aluminum Dome Tweeters
• Woven Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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NVX - Worth the Envy - Direct to Consumer Car Audio

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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:

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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.