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1978 Cadillac Eldorado

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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 1978 Cadillac Eldorado

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

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Dash Corner

Dash Corner Speakers

Speakers for your dash corner

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Seat Side Panel Speakers

Rear Seat Side Panel Speakers

Speakers for your rear seat side panel.

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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.
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Diamond Audio MSPRO65 with Sound Damping

MSPRO Series 6.5" Midrange Motorcycle Speakers 400W RMS, Pair + NVX SDSK2 Sound Damping

MSPRO65_SDSK2 big
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Diamond Audio MSPRO65 with Sound Damping

MSPRO Series 6.5" Midrange Motorcycle Speakers 400W RMS, Pair + NVX SDSK2 Sound Damping

• RMS: 400W / Peak: 800W
• Frequency Response: 110Hz - 10kHz
• Sensitivity: 97dB
• Manufactured to IP65 Marine Grade Compliant Specifications
• Shorting Ring Utilized In Motor Structure For Far-Field Performance

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$294.98

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• RMS: 400W / Peak: 800W
• Frequency Response: 110Hz - 10kHz
• Sensitivity: 97dB
• Manufactured to IP65 Marine Grade Compliant Specifications
• Shorting Ring Utilized In Motor Structure For Far-Field Performance

AudioControl PNW-65 with Installation Accessories

200W Peak (150W RMS) 6.5″ PNW Series 2-way Coaxial Speakers + 6.5” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

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AudioControl PNW-65 with Installation Accessories

200W Peak (150W RMS) 6.5″ PNW Series 2-way Coaxial Speakers + 6.5” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.9 dB

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338
List price $366.71
-17% $303.06

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.9 dB

Diamond Audio DESK3 with Sound Damping

100W Peak (50W RMS) 3.5" Elite Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

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Diamond Audio DESK3 with Sound Damping

100W Peak (50W RMS) 3.5" Elite Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

• 100 watts Peak Each, 25 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

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48
List price $308.73
$304.98

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• 100 watts Peak Each, 25 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

Hertz CX 165 with Sound Damping

420W Peak (140W RMS) 6.5" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Hertz CX 165 with Sound Damping

420W Peak (140W RMS) 6.5" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 210 watts Peak Each, 70 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-pressed paper+ Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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-5% $264.98

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• 210 watts Peak Each, 70 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-pressed paper+ Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Pioneer TS-A1301C with Sound Damping

600W Peak (100W RMS) 5.25" A-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

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Pioneer TS-A1301C with Sound Damping

600W Peak (100W RMS) 5.25" A-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 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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List price $188.74
-18% $154.99

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• 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

Infinity Reference 5032cfx (REF-5032cfx) with Sound Damping

270W Max (90W RMS) 5.25" Reference 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Infinity Reference 5032cfx (REF-5032cfx) with Sound Damping

270W Max (90W RMS) 5.25" Reference 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

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List price $148.74
-40% $89.98

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• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

DS18 PRO-CF6.4SL (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5” PRO Series Water-Resistant Motorcycle and Motorsports Mid-Bass Loudspeaker + NVX SDBSK2 Premium Sound Damping

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DS18 PRO-CF6.4SL (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5” PRO Series Water-Resistant Motorcycle and Motorsports Mid-Bass Loudspeaker + NVX SDBSK2 Premium Sound Damping

• Peak Each, RMS Each
• Water Resistant Carbon Fiber material
• Impedance: 4 ohm
• Sensitivity: 95 dB
• Priced Per Each Speaker

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-8% $94.44

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• Peak Each, RMS Each
• Water Resistant Carbon Fiber material
• Impedance: 4 ohm
• Sensitivity: 95 dB
• Priced Per Each Speaker

NVX NSP65KIT with Sound Damping

600W Peak (200W RMS) 6.5" N-Series 2-Way Component Speaker System with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP65KIT_SDBSK2 big
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NVX NSP65KIT with Sound Damping

600W Peak (200W RMS) 6.5" N-Series 2-Way Component Speaker System with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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54
List price $126.73
-21% $100.48

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• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

NVX VSP65KIT2F with Sound Damping

750W Peak (250W RMS) 6.5" 2-Ohm V-Series 2-Way Component Speaker System w/ 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

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NVX VSP65KIT2F with Sound Damping

750W Peak (250W RMS) 6.5" 2-Ohm V-Series 2-Way Component Speaker System w/ 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.51"

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List price $162.73
-20% $130.48

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• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.51"

Rockford Fosgate Punch P152 with Sound Damping

160W Peak (80W RMS) 5.25" Punch Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

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Rockford Fosgate Punch P152 with Sound Damping

160W Peak (80W RMS) 5.25" Punch Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$124.98

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• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Hifonics ZS65CXS with Installation Accessories

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

ZS65CXS_ACC_KIT big
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Hifonics ZS65CXS with Installation Accessories

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 300 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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280
List price $107.70
-31% $74.25

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• 300 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hifonics ZS653 with Installation Accessories

600W Peak (100W RMS) Zeus 6.5" Series 3-Way Coaxial Car Speakers with Speaker Installation Kit + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

ZS653_ACC_KIT big
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Hifonics ZS653 with Installation Accessories

600W Peak (100W RMS) Zeus 6.5" Series 3-Way Coaxial Car Speakers with Speaker Installation Kit + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 300 Watts Max Each, 50 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

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276
List price $107.70
-29% $76.25

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• 300 Watts Max Each, 50 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

JBL STAGE151F (JBLSPKS151F) with Sound Damping

300W Peak (60W) RMS 5.25" Stage Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

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JBL STAGE151F (JBLSPKS151F) with Sound Damping

300W Peak (60W) RMS 5.25" Stage Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 30 watts RMS Each
• Swayed Mylar Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $98.73
-34% $64.98

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• 150 watts Peak Each, 30 watts RMS Each
• Swayed Mylar Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

MB Quart FKB 116 (FKB116) with Sound Damping

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

FKB116_SDBSK2 big
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MB Quart FKB 116 (FKB116) with Sound Damping

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

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

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List price $98.73
-49% $49.98

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

NVX NSP35 with Sound Damping

200W Peak (70W RMS) 3.5" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters+ NVX SDBSK2 Premium Sound Damping

NSP35_SDBSK2 big
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NVX NSP35 with Sound Damping

200W Peak (70W RMS) 3.5" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters+ NVX SDBSK2 Premium Sound Damping

• 100 watts Peak Each, 35 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB
• Mounting Depth: 1.49"

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List price $78.73
-17% $64.98

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• 100 watts Peak Each, 35 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB
• Mounting Depth: 1.49"

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NVX NSP525 with Sound Damping

240W Peak (160W RMS) 5.25" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP525_SDBSK2 big
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NVX NSP525 with Sound Damping

240W Peak (160W RMS) 5.25" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 1.96"

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75
List price $84.73
-17% $69.98

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• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 1.96"

NVX NSP65 with Sound Damping

540W Peak (180W RMS) 6.5" N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP65_SDBSK2 big
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NVX NSP65 with Sound Damping

540W Peak (180W RMS) 6.5" N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.40"

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141
List price $126.73
-33% $84.98

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• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.40"

Rockford Fosgate Power T2652-S with Sound Damping

400W Peak (200W RMS) 6.5" Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

T2652S_SDBSK2 big
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Rockford Fosgate Power T2652-S with Sound Damping

400W Peak (200W RMS) 6.5" Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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90
List price $468.73
$464.98

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Alpine HDZ-653S with Sound Damping

600W Peak (200W RMS) 6.5” Status Series Slim-fit 3-way 4-ohm Component Speaker System + NVX SDSK2 Sound Damping

HDZ653S_SDSK2 big
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Alpine HDZ-653S with Sound Damping

600W Peak (200W RMS) 6.5” Status Series Slim-fit 3-way 4-ohm Component Speaker System + NVX SDSK2 Sound Damping

• 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 $1458.74
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• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Pioneer TS-Z65CH with Sound Damping

660W Peak (220W RMS) 6.5" Z-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

TSZ65CH_SDBSK2 big
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Pioneer TS-Z65CH with Sound Damping

660W Peak (220W RMS) 6.5" Z-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 330 watts Peak Each, 110 watts RMS Each
• 1.14" Aluminum Alloy Balanced Dome tweeters
• IMPP - Aramid Fiber and Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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48
List price $418.74
-36% $269.99

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• 330 watts Peak Each, 110 watts RMS Each
• 1.14" Aluminum Alloy Balanced Dome tweeters
• IMPP - Aramid Fiber and Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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    FAQ for Speakers in 1978 Eldorado

    Q: Can I upgrade or change the Speakers in 1978 Cadillac Eldorado?

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

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    Shop your 1978 Eldorado
    Why Use a Vehicle Fit Guide?
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

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

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