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MTX SS5 (2-Pairs, 4-Total)

1000W Peak (500W RMS) 5.25" Signature Series 2-Way Component Speaker System (2-Pairs)

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1000W Peak (500W RMS) 5.25" Signature Series 2-Way Component Speaker System (2-Pairs)

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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$999.90

Available

Ships in 10-14 days

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Rockford Fosgate Power T3652-S (2-Pairs, 4-Total)

1000W Peak (500W RMS) 6.5" 2-Way T3 Power Series Component Speaker System (2-Pairs)

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1000W Peak (500W RMS) 6.5" 2-Way T3 Power Series Component Speaker System (2-Pairs)

• 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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$2,599.98

Available

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

NVX - Worth the Envy - Direct to Consumer Car Audio

Rockford Fosgate T-4652-S (T4652-S) (2-Pairs, 4-Total)

1200W Peak (600W RMS) 6.5" Power Series 2-way Component Speaker System (2-Pairs)

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1200W Peak (600W RMS) 6.5" Power Series 2-way Component Speaker System (2-Pairs)

• 300 watts Peak Each, 150 watts RMS Each
• Ring radiator 1" Liquid Crystal Polymer Dome Tweeters w/ aluminum phase plug
• Polymer cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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$2,799.98

Available

Ships in 10-14 days

• 300 watts Peak Each, 150 watts RMS Each
• Ring radiator 1" Liquid Crystal Polymer Dome Tweeters w/ aluminum phase plug
• Polymer cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Diamond Audio H65A (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" HEX Series 2-Way Component Speaker System (2-Pairs)

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600W Peak (300W RMS) 6.5" HEX Series 2-Way Component Speaker System (2-Pairs)

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

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$1,539.98

In stock.

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

Diamond Audio DES365C (2-Pairs, 4-Total)

560W Peak (280W RMS) 6.5" Elite Series 3-Way Component Speaker System (2-Pairs)

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560W Peak (280W RMS) 6.5" Elite Series 3-Way Component Speaker System (2-Pairs)

• 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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$1,099.98

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

Hertz MPK165P.3 (2-Pairs, 4-Total)

460W Peak (230W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system (2-Pairs)

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460W Peak (230W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system (2-Pairs)

• 115 Watts Max Each, 55 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

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List price $1530.00
-15% $1,299.98

Available

Ships in 10-14 days

• 115 Watts Max Each, 55 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

Alpine HDZ-65CS (2-Pairs, 4-Total)

1200W Peak (400W RMS) 6.5” Status Series 2-way Component Speaker System (2-Pairs)

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1200W Peak (400W RMS) 6.5” Status Series 2-way Component Speaker System (2-Pairs)

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $2160.00
-33% $1,439.90

Available

Ships in 10-14 days

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Diamond Audio H65SH (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" HEX 2-Way Shallow Component Speakers (2-Pairs)

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600W Peak (300W RMS) 6.5" HEX 2-Way Shallow Component Speakers (2-Pairs)

• 150 watts Max Each, 75 watts RMS Each
• 2" Neodymium tweeters available in silk or aluminum
• Hard anodized black aluminum cone
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 1.3"

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$1,499.98

In stock.

• 150 watts Max Each, 75 watts RMS Each
• 2" Neodymium tweeters available in silk or aluminum
• Hard anodized black aluminum cone
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 1.3"

Diamond Audio H600A (2-Pairs, 4-Total)

680W Peak (340W RMS) 6" HEX Series 2-Way Component Speaker System (2-Pairs)

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680W Peak (340W RMS) 6" HEX Series 2-Way Component Speaker System (2-Pairs)

• 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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$1,499.98

In stock.

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

Diamond Audio H600S (2-Pairs, 4-Total)

680W Peak (340W RMS) 6.75" HEX Series 2-Way Component Speaker System (2-Pairs)

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680W Peak (340W RMS) 6.75" HEX Series 2-Way Component Speaker System (2-Pairs)

• 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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$1,499.98

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 HXPRO653DI (2-Pairs, 4-Total)

720W Peak (360W RMS) 6.5" HEX PRO Diamante Italia Series 3-Way Component Speaker System (2-Pairs)

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720W Peak (360W RMS) 6.5" HEX PRO Diamante Italia Series 3-Way Component Speaker System (2-Pairs)

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 89 dB

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$6,599.98

In stock.

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 89 dB

JBL Stadium 52F (2-Pairs, 4-Total)

720W Peak (240W RMS) 5.25" Stadium Series 2-way 3-Ohm Coaxial Car Speaker (2-Pairs)

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720W Peak (240W RMS) 5.25" Stadium Series 2-way 3-Ohm Coaxial Car Speaker (2-Pairs)

• 180 watts Max Each, 60 watts RMS Each
• 3/4" Textile Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB
• Mounting Depth: 2 1/4"

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List price $439.90
-14% $379.90

• 180 watts Max Each, 60 watts RMS Each
• 3/4" Textile Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB
• Mounting Depth: 2 1/4"

JBL Stage3 637F (Stage 3 637F) (2-Pairs, 4-Total)

540W Peak (180W RMS) 6.5" Stage3 Series 3-Way 3-Ohm Coaxial Car Speaker (2-Pairs)

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540W Peak (180W RMS) 6.5" Stage3 Series 3-Way 3-Ohm Coaxial Car Speaker (2-Pairs)

• 135 watts Max Each, 45 watts RMS Each
• Dome Tweeters
• Plus One™ polypropylene woofer cones
• Impedance: 3 ohm
• Sensitivity: 92 dB @2.83V
• Mounting Depth: 1.91"

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List price $219.90
-18% $179.90

• 135 watts Max Each, 45 watts RMS Each
• Dome Tweeters
• Plus One™ polypropylene woofer cones
• Impedance: 3 ohm
• Sensitivity: 92 dB @2.83V
• Mounting Depth: 1.91"

Hertz SV 165.1 (2-Pairs, 4-Total)

1600W Peak (800W RMS) 6.5" SPL Show Series 4-ohm midrange car speakers (2-Pairs)

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1600W Peak (800W RMS) 6.5" SPL Show Series 4-ohm midrange car speakers (2-Pairs)

• 400 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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-14% $499.98

• 400 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

Diamond Audio DES525 (2-Pairs, 4-Total)

400W Peak (200W RMS) 5.25" Elite Series 2-Way Coaxial Car Speakers (2-Pairs)

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400W Peak (200W RMS) 5.25" Elite Series 2-Way Coaxial Car Speakers (2-Pairs)

• 100 watts Peak Each, 50 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite Fiber Weave cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite Fiber Weave cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Kenwood KFC-1656S 300 Watt 6.5-Inch Dual Cone Stereo Car Audio Speaker (2 Pack)

600W Max (60W RMS) 6.5" 2-Way Coaxial Car Speakers Package

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600W Max (60W RMS) 6.5" 2-Way Coaxial Car Speakers Package

• 300 Watts Max Each, 30 Watts RMS Each
• Dual Cone Design
• Polypropylene Cone
• 4 ohm Impedance
• Sensitivity: 90 dB
• Mounting Depth: 1-11/16"

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List price $120.00
-33% $79.98

• 300 Watts Max Each, 30 Watts RMS Each
• Dual Cone Design
• Polypropylene Cone
• 4 ohm Impedance
• Sensitivity: 90 dB
• Mounting Depth: 1-11/16"

Massive Audio PK6S (2-Pairs, 4-Total)

1000W Max (500W RMS) 6.5" Shallow Component Speakers (2-Pairs)

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1000W Max (500W RMS) 6.5" Shallow Component Speakers (2-Pairs)

• 250 Watts Max Each, 125 Watts RMS Each
•1" Aluminum bullet tweeter
• Laminated paper cone
• 4 Ohm Impedance
• Sensitivity: 100 dB
• Mounting Depth: 1.99"

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List price $429.98
-21% $339.98

• 250 Watts Max Each, 125 Watts RMS Each
•1" Aluminum bullet tweeter
• Laminated paper cone
• 4 Ohm Impedance
• Sensitivity: 100 dB
• Mounting Depth: 1.99"

Pioneer TS-Z65F (2-Pairs, 4-Total)

660W Peak (220W RMS) 6.5" Z-Series 2-way 4 Ohms Coaxial Car Speaker (2-Pairs)

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660W Peak (220W RMS) 6.5" Z-Series 2-way 4 Ohms Coaxial Car Speaker (2-Pairs)

• 330 watts Peak Each, 110 watts RMS Each
• 1-1/8" Aluminum Dome Tweeters
• Twaron Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB
• Mounting Depth: 2 5/8"

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List price $600.00
-43% $340.00

• 330 watts Peak Each, 110 watts RMS Each
• 1-1/8" Aluminum Dome Tweeters
• Twaron Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB
• Mounting Depth: 2 5/8"

2 sets New Rockford Fosgate P165-SI 6.5" 240W 2-Way Car Component Speaker System

2 sets New Rockford Fosgate P165-SI 6.5" 240W 2-Way Car Component Speaker System

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2 sets New Rockford Fosgate P165-SI 6.5" 240W 2-Way Car Component Speaker System

• Peak Power: 120W
• RMS Power: 60W
• 1", soft Dome PEI Tweeter
• Mounting Depth: 2-1/4"
• Mineral-filled Polypropylene Woofer

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• Peak Power: 120W
• RMS Power: 60W
• 1", soft Dome PEI Tweeter
• Mounting Depth: 2-1/4"
• Mineral-filled Polypropylene Woofer

Hertz DCX165.3 (2-Pairs, 4-Total)

480W Peak (240W RMS) 6.5" Dieci Series 2-Way 4-ohm Coaxial Speakers (2-Pairs)

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480W Peak (240W RMS) 6.5" Dieci Series 2-Way 4-ohm Coaxial Speakers (2-Pairs)

• 120 watts Peak Each, 60 watts RMS Each
• 5/8" PEI (Polyetherimide) Dome Tweeters
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $300.00
-13% $259.98

• 120 watts Peak Each, 60 watts RMS Each
• 5/8" PEI (Polyetherimide) Dome Tweeters
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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.