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MTX TERMINATOR6 with Sound Damping

180W Peak (90W RMS) 6.5" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TERMINATOR6_SDBSK2 big
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180W Peak (90W RMS) 6.5" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.8 dB

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50
List price $88.69
-16% $74.94

In stock

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.8 dB

MTX TERMINATOR5 with Sound Damping

140W Peak (70W RMS) 5.25" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TERMINATOR5_SDBSK2 big
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140W Peak (70W RMS) 5.25" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

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48
List price $88.69
-16% $74.94

In stock

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

MTX TERMINATOR69 with Sound Damping

120W RMS 6x9" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TERMINATOR69_SDBSK2 big
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120W RMS 6x9" Terminator Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 60 watts RMS Each
• 1" Mylar Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.8 dB

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49
List price $108.69
-13% $94.94

In stock

• 60 watts RMS Each
• 1" Mylar Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.8 dB

MTX TERMINATOR6S (2-Pairs, 4-Total)

360W Peak (180W RMS) 6.5" Terminator Series 2-Way Component Speaker System (2-Pairs)

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360W Peak (180W RMS) 6.5" Terminator Series 2-Way Component Speaker System (2-Pairs)

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters with inline crossover
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

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List price $199.90
-10% $179.90

In stock

Only 1 Left!

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters with inline crossover
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

Lowest price in 30 days

MTX Audio THUNDER61 with Sound Damping

180W RMS 6.5" Thunder Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

THUNDER61_SDBSK2 big
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180W RMS 6.5" Thunder Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 90 watts RMS Each
• 1-3/8" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Save 15% Off Package Deals at Checkout!
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50
List price $258.69
-17% $214.96

In stock

Only 1 Left!

• 90 watts RMS Each
• 1-3/8" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

MTX TERMINATOR68 with Speaker Installation Kit

200W Peak (100W RMS) 6x9" 3-Way Thunder Series Coaxial Car Speakers + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

THUNDER693, XBAF69, SDSK2, SDRLR1, BTK106 big
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200W Peak (100W RMS) 6x9" 3-Way Thunder Series Coaxial Car Speakers + NVX Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

• Peak Power: 200W • RMS Power: 100W
• Pivoting Tweeter
• Mounting Depth: 3"
• Polypropylene Cone

Save 15% Off Package Deals at Checkout!
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Free or discounted install kits when available.

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189
List price $282.66
-30% $198.28 /pair

In stock

Only 1 Left!

• Peak Power: 200W • RMS Power: 100W
• Pivoting Tweeter
• Mounting Depth: 3"
• Polypropylene Cone

MTX TERMINATOR5 (2-Pairs, 4-Total)

280W Peak (140W RMS) 5.25" Terminator Series 2-Way Coaxial Car Speakers (2-Pairs)

TERMINATOR5_2 big
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280W Peak (140W RMS) 5.25" Terminator Series 2-Way Coaxial Car Speakers (2-Pairs)

• 70 watts Peak Each, 35 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

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Fits your DeVille
List price $139.90
-14% $119.90

In stock

Only 2 Left!

• 70 watts Peak Each, 35 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

MTX TERMINATOR69 (2-Pairs, 4-Total)

480W Peak (240W RMS) 6x9" Terminator Series 2-Way Coaxial Car Speakers (2-Pairs)

TERMINATOR69_2 big
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480W Peak (240W RMS) 6x9" Terminator Series 2-Way Coaxial Car Speakers (2-Pairs)

• 120 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.8 dB

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1
List price $179.90
-11% $159.90

In stock

• 120 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.8 dB

Lowest price in 30 days

MTX Audio THUNDER693 with Sound Damping

200W RMS 6x9" Thunder Series 3-way 4-ohm Coaxial Car Speakers with Dual Tweeters + NVX SDBSK2 Premium Sound Damping

THUNDER693_SDBSK2 big
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200W RMS 6x9" Thunder Series 3-way 4-ohm Coaxial Car Speakers with Dual Tweeters + NVX SDBSK2 Premium Sound Damping

• 100 watts RMS Each
• 1-3/16" dual Silk Cone tweeters
• Polypropylene cone material
• 1" Silk Dome super tweeters
• Impedance: 4 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
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50
List price $208.69
-20% $166.95

In stock

Only 1 Left!

• 100 watts RMS Each
• 1-3/16" dual Silk Cone tweeters
• Polypropylene cone material
• 1" Silk Dome super tweeters
• Impedance: 4 ohm
• Sensitivity: 92 dB

MTX TERMINATOR69 with Speaker Installation Kit

6" x 9" 2-Way 120W RMS Coaxial Car Speakers with Speaker Baffles, Sound Dampening, Roller, and Panel Removal

TERMINATOR69, XBAF69, SDSK2, SDRLR1, BTK106 big
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6" x 9" 2-Way 120W RMS Coaxial Car Speakers with Speaker Baffles, Sound Dampening, Roller, and Panel Removal

• 120 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.8 dB

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Free or discounted install kits when available.

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Add details to confirm fitment.
188
List price $182.66
-31% $125.63 /pair

In stock

• 120 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87.8 dB

MTX THUNDER52 with Installation Accessories

90W RMS 5.25" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

THUNDER52, XBAF525, SDSK2, SDRLR1, BTK106 big
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90W RMS 5.25" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your DeVille
  • Front Door
151
List price $192.66
-29% $136.06 /pair

In stock

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

MTX TERMINATOR6S with Sound Damping

90W RMS 6.5" Terminator Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

TERMINATOR6S_SDBSK2 big
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90W RMS 6.5" Terminator Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 45 watts RMS Each
• 1" Silk Dome tweeters with inline crossover
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

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Fits select models only.
Add details to confirm fitment.
48
List price $118.69
-12% $104.94

In stock

Only 2 Left!

• 45 watts RMS Each
• 1" Silk Dome tweeters with inline crossover
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.5 dB

Lowest price in 30 days

MTX Audio THUNDER65 with Sound Damping

240W Peak (120W RMS) 6.5" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

THUNDER65_SDBSK2 big
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240W Peak (120W RMS) 6.5" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Silk Pivoting Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
51
List price $188.73
-41% $110.95

In stock

• 120 watts Peak Each, 60 watts RMS Each
• 1" Silk Pivoting Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Lowest price in 30 days

MTX Audio THUNDER52 with Sound Damping

180W Peak (90W RMS) 5.25" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

THUNDER52_SDBSK2 big
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180W Peak (90W RMS) 5.25" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your DeVille
50
List price $138.69
-20% $110.95

In stock

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

MTX SS5 with Sound Damping

500W Peak (250W RMS) 5.25" Signature Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

SS5_SDBSK2 big
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500W Peak (250W RMS) 5.25" Signature Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84.9 dB

Save 15% Off Package Deals at Checkout!
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48
$514.94

Available

Ships in 10-14 days

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84.9 dB

MTX SS5 (2-Pairs, 4-Total)

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

SS5_2 big
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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

Save 15% Off Package Deals at Checkout!
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Fits your DeVille
$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

MTX SS5 with Installation Accessories

250W RMS 5.25" 2-Way Component Speaker System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

SS5, XBAF525, SDSK2, SDRLR1, BTK106 big
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250W RMS 5.25" 2-Way Component Speaker System with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 250 watts Peak Each, 125 watts RMS Each
• 1-3/16" Teteron Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 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 DeVille
  • Front Door
149
$539.98 /set

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

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    FAQ for Speakers in 1979 DeVille

    Q: Can I upgrade or change the Speakers in 1979 Cadillac DeVille?

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

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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.