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1978 Oldsmobile Ninety Eight Regency

Speakers & Speaker Installation for 1978 Oldsmobile Ninety Eight Regency

Find speakers to upgrade your sound and fit in the factory speaker location for your Ninety Eight Regency.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

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Crunch CS65C

600W Peak (120W RMS) 6.5" CS Series 2-Way 4-ohm Component Speaker System

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600W Peak (120W RMS) 6.5" CS Series 2-Way 4-ohm Component Speaker System

• 300 watts Peak Each, 60 watts RMS Each
• 1" Neo-Mylar Soft Dome tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Save $8 on install kits for this speaker

found car based on your search
Fits the following location in your Ninety Eight Regency
28
List price $49.99
-30% $34.99 /set

In stock

Deaf Bonce Apocalypse AP-M67AN

1200W Peak (600W RMS) 6.5" Apocalypse Series Midrange 4-ohm Car Speakers

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1200W Peak (600W RMS) 6.5" Apocalypse Series Midrange 4-ohm Car Speakers

• 600 watts Peak Each, 300 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 102 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
2
$449.90 /pair

In stock

Limited time!

JL Audio C1-690

120W RMS 6x9" C1 Series 2 Way Component 4-ohm Car Speakers

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120W RMS 6x9" C1 Series 2 Way Component 4-ohm Car Speakers

• 60 watts RMS Each
• 1" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Ninety Eight Regency
  • Rear Deck Corner
16
$189.99 /set

In stock

Used from: $161.49

Deaf Bonce Apocalypse AP-M60SQL

600W Peak (300W RMS) 6.5” Apocalypse Series 4-ohm Midrange Car Speakers

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600W Peak (300W RMS) 6.5” Apocalypse Series 4-ohm Midrange Car Speakers

• 300 watts Peak Each, 150 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97.5 dB

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Fits the following location in your Ninety Eight Regency
4
$119.90 /pair

In stock

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JL Audio C2-690tx

140W RMS 6x9" C2 Series 3-Way Coaxial 4-ohm Car Speakers

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140W RMS 6x9" C2 Series 3-Way Coaxial 4-ohm Car Speakers

• 70 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Ninety Eight Regency
  • Rear Deck Corner
21
List price $299.99
Save $50.00
-17% $249.99 /pair

In stock

Used from: $212.49

Polk Audio MM652 (MM 652)

600W Peak (200W RMS) 6.5" Mobile Monitor Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

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600W Peak (200W RMS) 6.5" Mobile Monitor Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

• 300 watts Peak Each, 100 watts RMS Each
• IP56 marine certified, with weep holes for proper drainage
• 1" Terylene Dome pivoting tweeters
• Titanium Coated Composite cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
62
List price $249.00
-28% $179.00 /pair

In stock

Only 1 Left!

Lowest price in 30 days

Alpine BRV-S65 (Like New (Open Box))

300W Peak (100W RMS) 6.5" BassRev Series 4-ohm 2-Way Coaxial Speaker Set

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300W Peak (100W RMS) 6.5" BassRev Series 4-ohm 2-Way Coaxial Speaker Set

• 150 watts Peak Each, 50 watts RMS Each
• 1" Polyester cloth Dome Tweeters
• Polypropylene-Mica cone material
• BassRev tuning via Alpine OPTIM8
• Impedance: 4 ohm
• Sensitivity: 84 dB

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Fits the following location in your Ninety Eight Regency
List price $360.00
-37% $227.95 /pair

In stock

Only 1 Left!

• 150 watts Peak Each, 50 watts RMS Each
• 1" Polyester cloth Dome Tweeters
• Polypropylene-Mica cone material
• BassRev tuning via Alpine OPTIM8
• Impedance: 4 ohm
• Sensitivity: 84 dB

MB Quart FKB116

240W Peak (120W RMS) 6.5" Formula Series 2-Way 4-ohm Coaxial Car Speakers

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240W Peak (120W RMS) 6.5" Formula Series 2-Way 4-ohm Coaxial Car Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
12
List price $79.99
-56% $34.99 /pair

In stock

Limited time!

Kicker KSS269 (51KSS269)

400W Peak (200W RMS) 6x9" KS-Series 2 Way Component 4-ohm Speaker System

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400W Peak (200W RMS) 6x9" KS-Series 2 Way Component 4-ohm Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 2-3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Ninety Eight Regency
  • Rear Deck Corner
List price $299.99
-10% $269.99 /set

In stock

JBL Stage3 607C (STAGE3607CAM)

300W Peak (100W RMS) 6.5" Stage3 Series 2-way Component 3-ohm Speakers

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300W Peak (100W RMS) 6.5" Stage3 Series 2-way Component 3-ohm Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
3
List price $179.95
-28% $129.95 /set

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Available Offers (2) for JBL Stage3 607C (STAGE3607CAM)
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List price $179.95
-28% $129.95
$110.46 with coupon | Price details
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JVC CS-DR621

600W Peak (100W RMS) 6.5" DRVN DR Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

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600W Peak (100W RMS) 6.5" DRVN DR Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

• 300 watts Peak Each, 50 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Fits the following location in your Ninety Eight Regency
3
List price $119.00
-17% $99.00 /pair

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Available Offers (2) for JVC CS-DR621
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List price $119.00
-17% $99.00
$79.20 with coupon | Price details
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Hertz MPK165.3

440W Peak (220W RMS) 6.5" Mille PRO Series 2-Way 4 Ohm Component Speaker System

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440W Peak (220W RMS) 6.5" Mille PRO Series 2-Way 4 Ohm Component Speaker System

• 220 watts Peak Each, 110 watts RMS Each
• 1" Tetolon Soft Dome tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Fits the following location in your Ninety Eight Regency
2
List price $705.00
-15% $599.99 /set

In stock

Only 1 Left!

Cerwin-Vega XED693

700W Peak (90W RMS) 6x9" XED Series 3-Way Coaxial 4-ohm Speakers

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700W Peak (90W RMS) 6x9" XED Series 3-Way Coaxial 4-ohm Speakers

• 350 watts Peak Each, 45 watts RMS Each
• 2-1/2" Metal Balanced Dome and 3/4" Piezo Metal Dome tweeters
• Polypropylene 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 the following location in your Ninety Eight Regency
  • Rear Deck Corner
25
List price $65.99
-17% $54.99 /pair

In stock

JBL SHOCK WAVE 150W65 (JBLSPKSW150W65)

600W Peak (300W RMS) 6.5" Shock Wave Series 4-ohm Midrange Speakers

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600W Peak (300W RMS) 6.5" Shock Wave Series 4-ohm Midrange Speakers

• 300 watts Peak Each, 150 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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Fits the following location in your Ninety Eight Regency
5
List price $129.95
-8% $119.95 /pair

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Sundown Audio SA-6.5CS v.3 (SA6.5CS)

250W RMS 6.5" SA Series 2 Way Component Speaker System (S-SA6.5CSV3)

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250W RMS 6.5" SA Series 2 Way Component Speaker System (S-SA6.5CSV3)

• 125 watts RMS Each
• Silk Dome Tweeters
• Carbon Fiber cone material
• Sensitivity: 24 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Ninety Eight Regency
1
List price $479.99
-17% $399.99 /pair

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AudioControl A65

200W RMS 6.5" Altitude Series 2-Way Coaxial 4-ohm Car Speakers

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200W RMS 6.5" Altitude Series 2-Way Coaxial 4-ohm Car Speakers

• 100 watts RMS Each
• Silk Dome Tweeters
• Precision-Molded Glass Fiber cone
• Impedance: 4 ohm
• Sensitivity: 86.2 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
List price $149.00
-13% $129.00 /pair

In stock

JBL STAGE3 GEN2 68 (STAGE368)

1120W Peak (140W RMS) 6.5" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers with Grilles

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1120W Peak (140W RMS) 6.5" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers with Grilles

• 560 watts Peak Each, 70 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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Fits the following location in your Ninety Eight Regency
List price $119.95
-17% $99.95 /pair

In stock

Only 3 Left!

Cerwin-Vega V652

720W Peak (240W RMS) 6.5" Vega Series 2025 Edition 2-Way Coaxial 2-ohm Speakers

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720W Peak (240W RMS) 6.5" Vega Series 2025 Edition 2-Way Coaxial 2-ohm Speakers

• 360 watts Peak Each, 120 watts RMS Each
• 3/4" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 88 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
1
$149.99 /pair

In stock

Kicker DSC350 (43DSC3504)

160W Peak (40W RMS) 3.5" DS Series 2-Way 4-ohm Coaxial Car Speakers

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160W Peak (40W RMS) 3.5" DS Series 2-Way 4-ohm Coaxial Car Speakers

• 80 watts Peak Each, 20 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Ninety Eight Regency
  • Dash Corner
43
List price $64.99
-15% $54.99 /pair

In stock

Alpine DM-65-G

400W Peak (100W RMS) 6.5" DM Series 2-Way Coaxial 4-ohm Car Speakers

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400W Peak (100W RMS) 6.5" DM Series 2-Way Coaxial 4-ohm Car Speakers

• 200 watts Peak Each, 50 watts RMS Each
• 0.8" Teteron Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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found car based on your search
Fits the following location in your Ninety Eight Regency
1
List price $110.00
-18% $89.95 /pair

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    FAQ for Speakers in 1978 Ninety Eight Regency

    Q: Can I upgrade or change the Speakers in 1978 Oldsmobile Ninety Eight Regency?

    A: Yes this page includes all the best Speakers that work in your Ninety Eight Regency.

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
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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.