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1978 GMC Caballero

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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 GMC Caballero

Find speakers to upgrade your sound and fit in the factory speaker location for your Caballero.  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

Dash Corner

Dash Corner Speakers

Speakers for your dash corner

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Lower Cab Corners

Lower Cab Corner Speakers

Speakers for your lower cab corner.

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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.
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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DS18 ZXI-3542

240W Peak (80W RMS) 3.5" ZXI Series 2-Way Coaxial 4-ohm Car Speakers

ZXI-3542 big
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DS18 ZXI-3542

240W Peak (80W RMS) 3.5" ZXI Series 2-Way Coaxial 4-ohm Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your Caballero
  • Center Dash
  • Dash Corner
List price $86.99
-17% $71.95 /pair

In stock

Only 3 Left!

Add to Cart
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DS18 ZXI-44

300W Peak (100W RMS) 4" ZXI Series 2-way 4-ohm Coaxial Car Speakers

ZXI-44 big
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DS18 ZXI-44

300W Peak (100W RMS) 4" ZXI Series 2-way 4-ohm Coaxial Car Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Glass Fiber 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 Caballero
  • Front Door
$80.95 /pair

In stock

Only 1 Left!

Add to Cart
See all 8 special offers
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DS18 PRO-CUPOLA2 (Sold Individually)

300W Peak (100W RMS) 4" Pro Audio Soft Dome Midrange 4-ohm Loudspeaker

PRO-CUPOLA2 big
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DS18 PRO-CUPOLA2 (Sold Individually)

300W Peak (100W RMS) 4" Pro Audio Soft Dome Midrange 4-ohm Loudspeaker

• 300 watts Peak, 100 watts RMS
• Coated non-resonant soft dome material
• Ultra-high sound quality
• Perfect for studio monitors or Hi-Fi applications
• Impedance: 4 ohm
• Sensitivity: 95 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Caballero
  • Front Door
List price $119.99
-17% $99.95

In stock.

Add to Cart

DS18 ZXI-354

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers

ZXI-354 big
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DS18 ZXI-354

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your Caballero
  • Center Dash
  • Dash Corner
3
$59.95 /pair

In stock.

Add to Cart
Used from: $35.97
See all 5 special offers

DS18 PRO-X4.4BMSL (Sold Individually)

200W Peak (100W RMS) 4" PRO-X Series 8-ohm Shallow-mount Mid-range Speaker

PRO-X4.4BMSL big
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DS18 PRO-X4.4BMSL (Sold Individually)

200W Peak (100W RMS) 4" PRO-X Series 8-ohm Shallow-mount Mid-range Speaker

• 200 watts Peak Each, 100 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your Caballero
  • Front Door
$39.95

In stock.

Add to Cart

DS18 DXQ3.5

240W Peak (60W RMS) 3.5" DXQ Series Midrange 4-ohm Car Speakers

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DS18 DXQ3.5

240W Peak (60W RMS) 3.5" DXQ Series Midrange 4-ohm Car Speakers

• 120 watts Peak Each, 60 watts RMS Each
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your Caballero
  • Center Dash
  • Dash Corner
$149.95 /pair

In stock.

Add to Cart

DS18 G4XI

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

G4XI big
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DS18 G4XI

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

• 120 watts Peak Each, 40 watts RMS Each
• 1" Mylar Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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 Caballero
  • Front Door
List price $55.99
-18% $45.95 /pair

In stock.

Add to Cart
See all 8 special offers

DS18 PRO-X4M (Sold Individually)

200W Peak (100W RMS) 4" PRO-X Series 8-ohm Mid-range Speaker

PRO-X4M big
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DS18 PRO-X4M (Sold Individually)

200W Peak (100W RMS) 4" PRO-X Series 8-ohm Mid-range Speaker

• 200 watts Peak Each, 100 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 85.7 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Install kits available for most vehicles

found car based on your search
Fits the following location in your Caballero
  • Front Door
$37.95

In stock.

Add to Cart

DS18 EXL-SQ4.0

520W Peak (120W RMS) 4" EXL Series 2 Way Coaxial 3-ohm Speakers

EXL-SQ4.0 big
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DS18 EXL-SQ4.0

520W Peak (120W RMS) 4" EXL Series 2 Way Coaxial 3-ohm Speakers

• 260 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Fiberglass cone material
• Impedance: 3 ohm
• Sensitivity: 85 dB

1+ offers available
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VIP Product Get $12.00 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 Caballero
  • Front Door
$119.95 /pair

In stock

Add to Cart
Continue to cart
Available Offers (2) for DS18 EXL-SQ4.0
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Flash Sale! Save at Checkout!
$119.95
$101.96 with coupon | Price details
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DS18 ZXI-354 (Open Box, Good)

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers

ZXI-354 big
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DS18 ZXI-354 (Open Box, Good)

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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 multiple locations in your Caballero
  • Center Dash
  • Dash Corner
List price $59.95
-40% $35.97 /pair

In stock

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

DS18 ZXI-44 with Speaker Accessories

100W RMS 4" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

ZXI-44, FRING4, SDSK2, SDRLR1, BTK106 big
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DS18 ZXI-44 with Speaker Accessories

100W RMS 4" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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 Caballero
  • Front Door
144
List price $152.66
-23% $117.55 /pair

In stock

Only 1 Left!

Add to Cart

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 ZXI-44 with Sound Damping

300W Peak (100W RMS) 4" ZXI Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

ZXI44_SDBSK2 big
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DS18 ZXI-44 with Sound Damping

300W Peak (100W RMS) 4" ZXI Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Caballero
48
List price $99.69
-8% $91.44

In stock

Only 1 Left!

Add to Cart

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 ZXI-354 (2-Pairs, 4-Total)

240W Peak (80W RMS) 3.5” ZXI Series Full-Range 4-Ohm Car Speakers (2-Pairs)

ZXI354_2 big
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DS18 ZXI-354 (2-Pairs, 4-Total)

240W Peak (80W RMS) 3.5” ZXI Series Full-Range 4-Ohm Car Speakers (2-Pairs)

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Caballero
3
List price $119.90
$116.30

In stock.

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

DS18 ZXI-44 (2-Pairs, 4-Total)

300W Peak (100W RMS) 4" ZXI Series 2-Way 4-Ohm Coaxial Car Speakers (2-Pairs)

ZXI44_2 big
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DS18 ZXI-44 (2-Pairs, 4-Total)

300W Peak (100W RMS) 4" ZXI Series 2-Way 4-Ohm Coaxial Car Speakers (2-Pairs)

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Caballero
$161.90

In stock.

Add to Cart

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 ZXI-354 with Speaker Installation Kit

Includes: 3.5” Mid-Range Speakers, Sound Damping Kit, Rubber Roller

ZXI-354, SDSK2, SDRLR1 big
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DS18 ZXI-354 with Speaker Installation Kit

Includes: 3.5” Mid-Range Speakers, Sound Damping Kit, Rubber Roller

• 120 watts Max Each, 40 watts RMS Each
• Tweeters
• Carbon Fiber cone material
• Impedance: 3.5 ohm
• Sensitivity: 86dB dB
• Mounting Depth: .16"

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 multiple locations in your Caballero
  • Center Dash
  • Dash Corner
70
List price $93.68
-16% $78.83 /pair

In stock.

Add to Cart

• 120 watts Max Each, 40 watts RMS Each
• Tweeters
• Carbon Fiber cone material
• Impedance: 3.5 ohm
• Sensitivity: 86dB dB
• Mounting Depth: .16"

DS18 ZXI-354 with Sound Damping

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers + NVX SDBSK2 Premium Sound Damping

ZXI354_SDBSK2 big
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DS18 ZXI-354 with Sound Damping

240W Peak (80W RMS) 3.5” ZXI Series 4-ohm Full-Range Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Caballero
51
List price $78.69
-10% $70.44

In stock.

Add to Cart

• 120 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

DS18 35D200NO-4

400W Peak (200W RMS) 3.5" Midrange 4-ohm OEM Dashboard Loudspeakers

35D200NO-4 big Out of stock
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DS18 35D200NO-4

400W Peak (200W RMS) 3.5" Midrange 4-ohm OEM Dashboard Loudspeakers

• 200 watts Peak Each, 100 watts RMS Each
• Fiberglass-Foam Composite cone with resin finish
• Impedance: 4 ohm
• Sensitivity: 88 dB

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VIP Product Get $20.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your Caballero
  • Center Dash
  • Dash Corner
$199.95 /pair
Notify Me

• 200 watts Peak Each, 100 watts RMS Each
• Fiberglass-Foam Composite cone with resin finish
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 35D200N-4

400W Peak (200W RMS) 3.5" Midrange 4-ohm Dashboard Loudspeakers

35D200N-4 big Out of stock
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DS18 35D200N-4

400W Peak (200W RMS) 3.5" Midrange 4-ohm Dashboard Loudspeakers

• 200 watts Peak Each, 100 watts RMS Each
• Fiberglass-Foam Composite cone with resin finish
• Impedance: 4 ohm
• Sensitivity: 87 dB

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VIP Product Get $22.50 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your Caballero
  • Center Dash
  • Dash Corner
$224.95 /pair
Add to Cart

• 200 watts Peak Each, 100 watts RMS Each
• Fiberglass-Foam Composite cone with resin finish
• Impedance: 4 ohm
• Sensitivity: 87 dB

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    FAQ for Speakers in 1978 Caballero

    Q: Can I upgrade or change the Speakers in 1978 GMC Caballero?

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

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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
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