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1979 Ford Thunderbird

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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 1979 Ford Thunderbird

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

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Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Center Dash Speaker(s)

Center Dash Speakers

Speakers for your center dash

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

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Speaker Location
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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Earthquake Sound Focus F6X9

600W Peak 6x9" Focus Series 3-way 4-ohm Coaxial Car Speakers

F6X9 big
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Earthquake Sound Focus F6X9

600W Peak 6x9" Focus Series 3-way 4-ohm Coaxial Car Speakers

• 600 watts Peak Each
• 0.79" Silk Dome Tweeters
• Poly-Injection cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
2
List price $160.00
$159.99 /pair

In stock.

Add to Cart
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Earthquake Sound VTEK-693

1400W RMS 6x9" VTEK Series 3-way 4-ohm Coaxial Car Speakers

VTEK-693 big
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Earthquake Sound VTEK-693

1400W RMS 6x9" VTEK Series 3-way 4-ohm Coaxial Car Speakers

• 700 watts RMS Each
• 0.79" Silk Dome tweeters
• Glass Fiber 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 Thunderbird
  • Rear Deck Corner
3
List price $229.00
-8% $209.99 /pair

In stock.

Add to Cart
See all 14 special offers
Limited time!

Earthquake Sound T693X

600W Peak 6x9" TNT Series 3-Way Coaxial 4-ohm Car Speakers

T693X big
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Earthquake Sound T693X

600W Peak 6x9" TNT Series 3-Way Coaxial 4-ohm Car Speakers

• 600 watts Peak Each
• 2" Mylar Dome midrange tweeter
• 1.18" Mylar Dome super tweeter
• Poly-Injection cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $13.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
3
List price $149.00
-13% $129.99 /pair

In stock.

Add to Cart
See all 14 special offers

Earthquake Sound Focus FC6.2

600W Peak 6.5" Focus Series 2-way 4-ohm Component Speaker System

FC6.2 big
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Earthquake Sound Focus FC6.2

600W Peak 6.5" Focus Series 2-way 4-ohm Component Speaker System

• 600 watts Peak Each, RMS Each
• 1" Silk Dome tweeters with neodymium magnets
• Low-Mass Poly Injection cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Install kits available for this speaker

found car based on your search
Fits the following location in your Thunderbird
5
List price $206.00
-10% $185.99 /set

In stock.

Add to Cart
See all 14 special offers

Earthquake Sound EQ650NEO (Sold Individually)

400W Peak (200W RMS) 6.5" EQ NEO Series Pro Audio Midrange 8-ohm Car and PA Speaker

EQ650NEO big
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Earthquake Sound EQ650NEO (Sold Individually)

400W Peak (200W RMS) 6.5" EQ NEO Series Pro Audio Midrange 8-ohm Car and PA Speaker

• 400 watts Peak, 200 watts RMS
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 95 dB

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Save $21 on install kits for this speaker

found car based on your search
Fits the following location in your Thunderbird
$175.00

In stock.

Add to Cart

Earthquake Sound T65

800W Peak 6.5" TNT Series 2-Way Coaxial 4-ohm Car Speakers

T65 big
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Earthquake Sound T65

800W Peak 6.5" TNT Series 2-Way Coaxial 4-ohm Car Speakers

• 400 watts Peak Each
• 1.18" Mylar Dome Tweeters
• Poly-Injection cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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VIP Product Get $13.60 in rewards to spend later

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Install kits available for this speaker

found car based on your search
Fits the following location in your Thunderbird
$135.99 /pair

In stock.

Add to Cart
See all 14 special offers

Earthquake EQ6-S8

400W Peak 6.5” EQ Series 8-ohm Midbass Car Speakers

EQ6-S8 big
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Earthquake EQ6-S8

400W Peak 6.5” EQ Series 8-ohm Midbass Car Speakers

• 200 watts Peak Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity:

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VIP Product Get $6.50 in rewards to spend later

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Save $21 on install kits for this speaker

found car based on your search
Fits the following location in your Thunderbird
1
List price $89.00
-27% $64.99

In stock.

Add to Cart
See all 5 special offers

Earthquake Sound EQ6-8 (Sold Individually)

400W Peak 6.5” EQ Series Mid-Bass 8-ohm Car Speaker

EQ6-8 big
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Earthquake Sound EQ6-8 (Sold Individually)

400W Peak 6.5” EQ Series Mid-Bass 8-ohm Car Speaker

• 200 watts Peak
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for this speaker

found car based on your search
Fits the following location in your Thunderbird
List price $80.00
-25% $59.99

In stock.

Add to Cart
See all 5 special offers

Earthquake Sound VTEK-693 with Installation Accessories

700W RMS 6" x 9" 3-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

VTEK-693, XBAF69, SDSK, SDRLR1, BTK106 big
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Earthquake Sound VTEK-693 with Installation Accessories

700W RMS 6" x 9" 3-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 6" x 9" 3-way VTEK Series Coaxial Speakers
• Glass Fiber Cone
• 3/4" Silk Dome Tweeter
• 30mm KSV Voice Coil
• Speaker Grilles Included
• 4 Ohm Impedance
• PistonMax Technology

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
188
List price $321.71
-21% $255.67

In stock.

Add to Cart

• 6" x 9" 3-way VTEK Series Coaxial Speakers
• Glass Fiber Cone
• 3/4" Silk Dome Tweeter
• 30mm KSV Voice Coil
• Speaker Grilles Included
• 4 Ohm Impedance
• PistonMax Technology

Earthquake Sound F6X9 with Installation Accessories

600W Max 6x9" 3-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

F6X9, XBAF69, SDSK2, SDRLR1, BTK106 big
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Earthquake Sound F6X9 with Installation Accessories

600W Max 6x9" 3-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 6" x 9" 3-way Focus Series Coaxial Speakers
• Low Mass Poly Injection Woofer Cone
• 3/4" Silk Dome Tweeter
• Selectable Tweeter Level
• Speaker Grilles Included
• 4 Ohm Impedance • Separate Filters for Bass and Tweeter

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
187
List price $252.71
-19% $205.67 /pair

In stock.

Add to Cart

• 6" x 9" 3-way Focus Series Coaxial Speakers
• Low Mass Poly Injection Woofer Cone
• 3/4" Silk Dome Tweeter
• Selectable Tweeter Level
• Speaker Grilles Included
• 4 Ohm Impedance • Separate Filters for Bass and Tweeter

Earthquake T693X with Installation Accessories

300W RMS 6"x9" 3-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

T693X, XBAF69, SDSK2, SDRLR1, BTK106 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake T693X with Installation Accessories

300W RMS 6"x9" 3-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 300 watts Peak Each, RMS Each
• 1-3/16" Mylar Dome Tweeters
• Low Mass Poly Injection cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
188
List price $241.71
-27% $175.67 /pair

In stock.

Add to Cart

• 300 watts Peak Each, RMS Each
• 1-3/16" Mylar Dome Tweeters
• Low Mass Poly Injection cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Earthquake Sound VTEK-62

1000W RMS 6.5" VTEK Series 2-Way Coaxial 4-ohm Car Speakers

VTEK-62 big Out of stock
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Earthquake Sound VTEK-62

1000W RMS 6.5" VTEK Series 2-Way Coaxial 4-ohm Car Speakers

• 500 watts RMS Each
• 3/4" Silk Dome swiveling tweeters
• Glass Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

VIP Star Icon

VIP Product Get $13.60 in rewards to spend later

install icon

Install kits available for this speaker

found car based on your search
Fits the following location in your Thunderbird
1
List price $179.00
-24% $135.99 /pair
Notify Me

• 500 watts RMS Each
• 3/4" Silk Dome swiveling tweeters
• Glass Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

 
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    FAQ for Speakers in 1979 Thunderbird

    Q: Can I upgrade or change the Speakers in 1979 Ford Thunderbird?

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

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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