Garage
Shop

Car Speakers for your 1966 Eldorado

Upgrading your factory car speakers to a quality pair of aftermarket car speakers will allow you to hear music in a whole new way. You'll be able to hear the high, background notes better, as well as the rich deep bass as the artist intended. Here you will find a wide selection of replacement and component car speakers for sale from name brand manufacturers.

Your Vehicle


Exclamation Icon
Speaker fitment data is not available for your 1966 Eldorado
Universal-fit speaker options below.

Update vehicle | Remove vehicle | Vehicle store

Exclamation Icon It’s a no-brainer.
Get your speakers here.

Install kit discounts · Guaranteed fit · Full warranty

Shop by Category


Products in these categories contain items that carry a guarantee to fit your Cadillac Eldorado (change vehicle)

Top sellers

Loading...
Filters
filter-icon Filters & Sort

JBL Stadium 962C (JBLSPKSD962CAM)

870W Peak (290W RMS) 6x9" Stadium Series 2-Way Component 3-ohm Speaker System

Stadium 962C big
Go to item page Right Arrow Icon of Right Arrow

870W Peak (290W RMS) 6x9" Stadium Series 2-Way Component 3-ohm Speaker System

• 435 watts Peak Each, 145 watts RMS Each
• 3/4" Aluminum Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 94 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $53.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

3
List price $579.95
-9% $529.95 /set

In stock

Only 2 Left!

DS18 PRO-X694BM (Sold individually)

400W Peak (200W RMS) 6x9” PRO-X Series 4-ohm Midrange Bullet Loudspeaker

PRO-X694BM big
Go to item page Right Arrow Icon of Right Arrow

400W Peak (200W RMS) 6x9” PRO-X Series 4-ohm Midrange Bullet Loudspeaker

• 400 watts Peak, 200 watts RMS
• Aluminum Bullet tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 98 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

2
$83.95

In stock

Select Increments Pillar-Pods (PP0718-IA)

Custom-fit speaker pods to install 4" speakers in select 2007-2018 vehicles from Jeep

PP0718-IA big
Go to item page Right Arrow Icon of Right Arrow

Custom-fit speaker pods to install 4" speakers in select 2007-2018 vehicles from Jeep

• Designed for 4" speakers
• Fit in factory pillar tweeter locations
• Number of Enclosures: 2

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $14.00 in rewards to spend later

No Fit Icon Doesn't fit your Eldorado

$139.95

In stock

• Designed for 4" speakers
• Fit in factory pillar tweeter locations
• Number of Enclosures: 2

Sony XS-162GS

500W Peak (90W RMS) 6.5" GS Series 2-way 4-ohm Component Car Speakers

XS-162GS big
Go to item page Right Arrow Icon of Right Arrow

500W Peak (90W RMS) 6.5" GS Series 2-way 4-ohm Component Car Speakers

• 250 watts Peak Each, 45 watts RMS Each
• 1-3/16" Silk Dome tweeters
• Composite Polypropylene Cone - CPPC cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $19.80 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $199.99
$198.00 /set

In stock

Only 3 Left!

Hertz MPX 165.3

400W Peak (200W RMS) 6.5" Mille Pro Series 2-Way Pro Audio Coaxial 4-ohm Speakers

MPX 165.3 big
Go to item page Right Arrow Icon of Right Arrow

400W Peak (200W RMS) 6.5" Mille Pro Series 2-Way Pro Audio Coaxial 4-ohm Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Tetolon Soft Dome Tweeters
• Pressed Pulp with Cotton Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $45.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

3
List price $470.00
$449.99 /pair

In stock

Only 3 Left!

Limited time!

NVX VSP60 - Open Box, Great

600W Peak (200W RMS) 6" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters

VSP60 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters

• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.51"

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

$215.99 /pair
$194.39 with coupon | Price details

In stock

Only 3 Left!

Alpine EL-E65C-G

320W Peak (80W RMS) 6.5" EL Series 2-Way Component 4-ohm Car Speakers

EL-E65C-G big
Go to item page Right Arrow Icon of Right Arrow

320W Peak (80W RMS) 6.5" EL Series 2-Way Component 4-ohm Car Speakers

• 160 watts Peak Each, 40 watts RMS Each
• 3/4" Teteron Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

1
List price $110.00
-18% $89.95 /set

In stock

Limited time!

Infinity Kappa 53XF (INFSPKKA53XFAM)

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

Kappa 53XF big
Go to item page Right Arrow Icon of Right Arrow

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $16.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $249.95
Save $90.00
-36% $159.95 /pair

In stock

Cerwin-Vega H675

540W Peak (180W RMS) 6.75" HED Series 2 Way Coaxial Speakers

H675 big
Go to item page Right Arrow Icon of Right Arrow

540W Peak (180W RMS) 6.75" HED Series 2 Way Coaxial Speakers

• 270 watts Peak Each, 90 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• UV-Treated Polypropylene cone material

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

$137.99 /pair

Available

Ships in 10-14 days

Earthquake Sound T57

800W Peak 5x7” TNT Series 2-Way Coaxial 4-ohm Car Speakers

T57 big
Go to item page Right Arrow Icon of Right Arrow

800W Peak 5x7” TNT Series 2-Way Coaxial 4-ohm Car Speakers

• 400 watts Peak Each
• 1" Mylar Dome Tweeters
• Low Mass Poly-Injection cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $10.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $120.00
-17% $99.99 /pair

In stock.

Cerwin-Vega PH694

640W Peak (320W RMS) 6x9" PRO Series Full Range Coaxial 4-ohm Speakers

PH694 big
Go to item page Right Arrow Icon of Right Arrow

640W Peak (320W RMS) 6x9" PRO Series Full Range Coaxial 4-ohm Speakers

• 320 watts Peak Each, 160 watts RMS Each
• Polymide Horn Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 101 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

2
List price $239.99
-17% $199.99 /pair

In stock

Sundown Audio E65CS

100W RMS 6.5" E Series Component 4-ohm Speakers (E6.5CS)

E6.5CS big
Go to item page Right Arrow Icon of Right Arrow

100W RMS 6.5" E Series Component 4-ohm Speakers (E6.5CS)

• 100 watts RMS Each
• Titanium Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $239.99
-17% $199.99 /set

In stock

Only 2 Left!

Limited time!

Rockford Fosgate Punch P1V2-65

300W Peak (150W RMS) 6.5" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

P1V2-65 big
Go to item page Right Arrow Icon of Right Arrow

300W Peak (150W RMS) 6.5" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Tetolon Inverted Dome tweeters
• 3/8" Polypropylene-Piezo super tweeters
• Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $18.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $239.99
Save $60.00
-25% $179.99 /pair

In stock

Hertz CX 100

240W Peak (80W RMS) 4" Cento Series 2-Way Coaxial 4-ohm Car Speakers

CX 100 big
Go to item page Right Arrow Icon of Right Arrow

240W Peak (80W RMS) 4" Cento Series 2-Way Coaxial 4-ohm Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 0.9" Soft Tetolon Dome Tweeters
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

4
List price $260.00
$249.99 /pair

In stock

JBL Club 64SQ (JBLSPKCB64SQ)

450W Peak (150W RMS) 6.5" Club Series 2 Way Coaxial 3-ohm Speakers

Club 64SQ big
Go to item page Right Arrow Icon of Right Arrow

450W Peak (150W RMS) 6.5" Club Series 2 Way Coaxial 3-ohm Speakers

• 225 watts Peak Each, 75 watts RMS Each
• Silk Edge Driven Dome tweeters
• Carbon Fiber cone material
• Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $17.00 in rewards to spend later

install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

1
List price $199.95
-15% $169.95 /pair

In stock

Bavsound BSD.S1.G20.HIFI-Kit

8-Speaker Upgrade Kit for select 2019-2025 3 Series with Standard Hi-Fi

BSD.S1.G20.HIFI-Kit big
Go to item page Right Arrow Icon of Right Arrow

8-Speaker Upgrade Kit for select 2019-2025 3 Series with Standard Hi-Fi

• Fits select 2019-2025 3 Series with Standard Hi-Fi
• Silk Dome tweeters
• Woven Glass Fiber cone material
• Butyl Rubber speaker surround

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $74.90 in rewards to spend later

No Fit Icon Doesn't fit your Eldorado

$749.00

In stock.

Limited time!

NVX VPRO69BM (Sold Individually)

500W Peak (250W RMS) 6x9" V-Series Pro Midrange Loudspeaker

VPRO69BM big
Go to item page Right Arrow Icon of Right Arrow

500W Peak (250W RMS) 6x9" V-Series Pro Midrange Loudspeaker

• 500 watts Peak Each, 250 watts RMS Each
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

Dads & Grads Sale! Save 15% at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $89.99
-44% $49.99

In stock

Only 1 Left!

Deaf Bonce Machete MLH-60

200W Peak (100W RMS) 6.5" Machete Series 4-ohm Full Range Car Speakers

Machete MLH-60 big
Go to item page Right Arrow Icon of Right Arrow

200W Peak (100W RMS) 6.5" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

$34.90 /pair

In stock

Only 1 Left!

Cerwin-Vega RPMPODSM65

800W Peak (150W RMS) 6.5" RPM Stroker Series Speaker Kick Pods for Harley-Davidson Motorcycles

RPMPODSM65 big
Go to item page Right Arrow Icon of Right Arrow

800W Peak (150W RMS) 6.5" RPM Stroker Series Speaker Kick Pods for Harley-Davidson Motorcycles

• 400 watts Peak Each, 75 watts RMS Each
• 1" Titanium Dome Tweeters
• Waterproof Composite Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $35.00 in rewards to spend later

No Fit Icon Doesn't fit your Eldorado

$349.99

In stock

• 400 watts Peak Each, 75 watts RMS Each
• 1" Titanium Dome Tweeters
• Waterproof Composite Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Limited time!

Alpine S2-S30 (Open Box, Great)

520W Peak (170W RMS) 3" S-Series Hi-Res 2-Way Coaxial 4-ohm Shallow Car Speakers

S2-S30 big
Go to item page Right Arrow Icon of Right Arrow

520W Peak (170W RMS) 3" S-Series Hi-Res 2-Way Coaxial 4-ohm Shallow Car Speakers

• 260 watts Peak Each, 85 watts RMS Each
• Hi-Res Audio Certified
• 3/4" Dome Tweeters
• Lightweight Rigid Pulp cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

Fitment unknown for your Eldorado

List price $140.00
-40% $83.97 /pair
$75.57 with coupon | Price details

In stock

Only 1 Left!

• 260 watts Peak Each, 85 watts RMS Each
• Hi-Res Audio Certified
• 3/4" Dome Tweeters
• Lightweight Rigid Pulp cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

Items per page: 20

    Clear all

    FAQ Frequently asked questions in Car Speakers


    There are two main types of car speakers: component speakers and coaxial speakers. Component speakers consist of separate tweeters, midranges, and woofers, which can be installed in different locations in your car for the best sound quality. Coaxial speakers combine all three speakers into one unit, which is typically mounted in the door panels.
    The most common mistakes people make when installing car speakers include:
    1. Not using the correct speaker adapters: If your car speakers do not fit the factory mounting locations, you will need to use speaker adapters.
    2. Not connecting the speaker wires correctly: The speaker wires must be connected to the speakers and the car stereo in the correct order.
    3. Not securing the speakers in place: The speakers must be secured in place to prevent them from rattling or vibrating.
    4. Not testing the speakers after installation: It is important to test the speakers after installation to make sure they are working properly.
    There are many benefits to installing car speakers, including:
    1. Improved sound quality: Car speakers can significantly improve the sound quality of your car stereo.
    2. Increased bass response: Car speakers can provide you with deeper bass, which can make your music sound more powerful.
    3. Better clarity: Car speakers can provide you with clearer sound, which can make it easier to understand lyrics and other audio content.
    4. Increased volume: Car speakers can provide you with more volume, which can be helpful if you like to listen to your music loud.
    5. Customization: Car speakers can be customized to your specific needs, such as the type of music you listen to or the size of your car.
    The cost of installing car speakers can vary depending on the type of speakers you choose, the complexity of the installation, and the location where you have the speakers installed. In general, you can expect to pay anywhere from $50 to $300 to have car speakers installed.
    There are a few factors to consider when choosing car speakers, including:
    1. The type of music you listen to: If you listen to a lot of bass-heavy music, you will need speakers with good bass response. If you listen to a lot of classical music, you will need speakers with good clarity.
    2. The size of your car: If you have a small car, you will need smaller speakers. If you have a large car, you can get away with larger speakers.
    3. Your budget: Car speakers can range in price from a few dollars to a few hundred dollars. It is important to set a budget before you start shopping.
    4. The installation process: If you are not comfortable installing car speakers yourself, you may want to hire a professional.

    All About

    Car Speakers

    Upgrading your car speakers is a tried and true method to improve your sound system. A set of aftermarket speakers is able to handle a wider range of frequencies, giving the lower notes greater depth and making the higher notes sound more defined. 

    Aftermarket products are built with more durable and temperature resistant materials than the OEM (originally equipment manufacturer). For example, most auto speakers include a rubber or foam surround for enhanced durability. 

    Sonic Electronix’s selection includes various sizes of full-range 2-way, 3-way and  component speakers.

    The most important figure when gauging a speaker's quality is sensitivity rating. A sensitivity or efficiency 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 given a set amount of input power. An efficient speaker helps you maximize your available power. 

    Selecting the Proper Speaker for Your Application

    In order to select the proper set of speakers for your sound system, look at the RMS (root mean square) power-handling rating. The RMS power is the amount of power the speaker requires to operate safely. It also refers to the amount of power a speaker can handle on a continuous basis. Sonic Electronix recommends giving speakers 75 - 90% of its recommended RMS rating to help prevent blowing your speakers.

    Full-range car speakers – which contain all elements in one for lows, mids and highs feature a woofer and tweeter both molded into the speaker. Some include midrange drivers. 

    In contrast, component systems feature separate woofers and tweeters. This allows you to mount the tweeters in an optimal location for generating a more realistic sound. They also have midranges and external crossovers, which send separate frequencies to the woofer and the tweeter for a more efficient reproduction.

    Whether you're a car audio novice or the biggest audiophile on the block, you should be able to find a pair of speakers from our wide selection that will help you build the system of your dreams.

    Car Speaker Resources:

     

    Looking for a way to improve your car audio experience? Car speakers are the key to an amazing audio experience! With the right speakers, you can create a custom sound system that will make your car feel like a concert hall.

    Car speakers are the transducers that convert electrical signals into sound waves. They are the most important part of any car audio system, and they come in a variety of sizes, shapes, and power ratings.

    Advantages of Car Speakers

    There are many advantages to installing car speakers in your vehicle. Here are just a few:

    Improved sound quality: Car speakers can improve the sound quality of your car stereo by providing clearer highs, richer mids, and deeper bass.

    Increased volume: Car speakers can increase the volume of your car stereo, so you can enjoy your music louder and more clearly.

    Customization: Car speakers can be customized to match your specific needs and preferences. You can choose speakers that are the right size for your vehicle, the right power rating for your listening habits, and the right sound signature for your taste in music.

    Sonic Electronix is here to help you find the best car speakers for your vehicle. We offer a wide selection of speakers from the top brands in the industry, and our staff is knowledgeable and experienced. We can help you choose the right speakers for your needs and budget, and we can also install them for you.

    If you're looking for the best car speakers, don't hesitate to contact Sonic Electronix. We're here to help you create the perfect sound system for your vehicle.

    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    1966 Cadillac Eldorado

    2017 Mazda 6

    2014 Ford Expedition EL

    2003 Saturn Ion-2

    1981 GMC P3500

    2012 Volvo XC90

    2025 Volvo XC60

    2019 Audi Q8

    1990 Geo Metro

    1986 Dodge Diplomat

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    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.