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2003 Cadillac DeVille

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Overview Upgrade your Stereo 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 2003 Cadillac DeVille

Find speakers to upgrade your sound and fit in the factory speaker location for your DeVille.  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 Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

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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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Diamond Audio DES65C with Speaker Installation Kit

120W RMS 6.5" DES Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

DES65C, XBAF65, SDSK2, SDRLR1, BTK106 big
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Diamond Audio DES65C with Speaker Installation Kit

120W RMS 6.5" DES Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Save $31 on install kits for this speaker

found car based on your search
Fits multiple locations in your DeVille
256
List price $437.70
-8% $403.52 /set

In stock

Only 3 Left!

Add to Cart

• 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio DES69C (2-Pairs, 4-Total)

600W Peak (300W RMS) 6x9" Elite Series 2-Way Component Speaker System (2-Pairs)

DES69C_2 big
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Diamond Audio DES69C (2-Pairs, 4-Total)

600W Peak (300W RMS) 6x9" Elite Series 2-Way Component Speaker System (2-Pairs)

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your DeVille
List price $1159.98
-28% $839.98

In stock

Only 1 Left!

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD52_SDSK2 big
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Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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48
List price $138.73
-10% $124.98

In stock

Only 3 Left!

Add to Cart

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Diamond Audio MP654 with Speaker Installation Kit

Includes: (2) 6.5" Full-range speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

MP654, XBAF65, SDRLR1, SDSK2, BTK106 big
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Diamond Audio MP654 with Speaker Installation Kit

Includes: (2) 6.5" Full-range speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 300 watts Max Each, 150 watts RMS Each
• 1" Horn Tweeters
• Impedance: N/A
• Sensitivity: 101 dB
• Mounting Depth: 3.33"

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Save $13 on install kits for this speaker

found car based on your search
Fits multiple locations in your DeVille
259
List price $527.70
-8% $483.52 /pair

In stock

Only 3 Left!

Add to Cart

• 300 watts Max Each, 150 watts RMS Each
• 1" Horn Tweeters
• Impedance: N/A
• Sensitivity: 101 dB
• Mounting Depth: 3.33"

Diamond Audio MP694 with Speaker Installation Kit

Includes: (2) 6" x 9" speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

MP694, XBAF69, SDRLR1, SDSK2, BTK106 big
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Diamond Audio MP694 with Speaker Installation Kit

Includes: (2) 6" x 9" speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 300 watts Max Each, 150 watts RMS Each
• 1" Horn Tweeters
• Impedance: N/A
• Sensitivity: 101 dB
• Mounting Depth: 3.99"

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Save $10 on install kits for this speaker

found car based on your search
Fits the following location in your DeVille
  • Rear Deck Corner
187
List price $632.70
-6% $595.67 /pair

In stock

Only 1 Left!

Add to Cart

• 300 watts Max Each, 150 watts RMS Each
• 1" Horn Tweeters
• Impedance: N/A
• Sensitivity: 101 dB
• Mounting Depth: 3.99"

Diamond Audio DES69C with Speaker Installation Kit

300W Peak (150W RMS) 6"x9" Elite Series 2-Way Component Speaker System + 6x9” Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

DES69C, XBAF69, SDSK2, SDRLR1, BTK106 big
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Diamond Audio DES69C with Speaker Installation Kit

300W Peak (150W RMS) 6"x9" Elite Series 2-Way Component Speaker System + 6x9” Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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Install kits available for this speaker

found car based on your search
Fits the following location in your DeVille
  • Rear Deck Corner
187
List price $672.70
-31% $465.67 /pair

In stock

Only 2 Left!

Add to Cart

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Diamond Audio MS69NEO with Speaker Installation Kit

1400W Peak (700W RMS) 6X9" MS Neo Series Midrange Coaxial Speakers

MS69NEO, XBAF69, SDSK2, SDRLR1, BTK106 big
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Diamond Audio MS69NEO with Speaker Installation Kit

1400W Peak (700W RMS) 6X9" MS Neo Series Midrange Coaxial Speakers

• 700 watts Max Each, 350 watts RMS Each
• Neodymium Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.091"

Save 15% Off Package Deals at Checkout!
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Save $10 on install kits for this speaker

found car based on your search
Fits the following location in your DeVille
  • Rear Deck Corner
187
List price $922.70
-5% $875.67 /pair

In stock

Only 2 Left!

Add to Cart

• 700 watts Max Each, 350 watts RMS Each
• Neodymium Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.091"

Diamond Audio MP694 with Sound Damping

600W Peak (300W RMS) 6X9" Motorsport Series Pro Full-Range Compression Integrated Horn Speaker - Pair + NVX SDSK2 Sound Damping

MP694_SDSK2 big
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Diamond Audio MP694 with Sound Damping

600W Peak (300W RMS) 6X9" Motorsport Series Pro Full-Range Compression Integrated Horn Speaker - Pair + NVX SDSK2 Sound Damping

• 300 watts Max Each, 150 watts RMS Each
• 1" Horn Tweeters
• Impedance: N/A
• Sensitivity: 101 dB
• Mounting Depth: 3.99"

Save 15% Off Package Deals at Checkout!
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Fits your DeVille
48
$564.98

In stock

Only 2 Left!

Add to Cart

• 300 watts Max Each, 150 watts RMS Each
• 1" Horn Tweeters
• Impedance: N/A
• Sensitivity: 101 dB
• Mounting Depth: 3.99"

Diamond Audio DES652 (2-Pairs, 4-Total)

480W Peak (240W RMS) 6.5" Elite Series 2-Way Coaxial Car Speakers (2-Pairs)

DES652_2 big
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Diamond Audio DES652 (2-Pairs, 4-Total)

480W Peak (240W RMS) 6.5" Elite Series 2-Way Coaxial Car Speakers (2-Pairs)

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Fits your DeVille
$459.98

Available

Ships in 10-14 days

Add to Cart

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio HXPRO653DI with Sound Damping

360W Peak (180W RMS) 6.5" HEX PRO Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

HXPRO653DI_SDSK2 big
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Diamond Audio HXPRO653DI with Sound Damping

360W Peak (180W RMS) 6.5" HEX PRO Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 89 dB

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48
$3,314.98

In stock.

Add to Cart

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 89 dB

Diamond Audio MP84 (2-Pairs, 4-Total)

800W MAX (400W RMS) 8" PRO Full-Range Coaxial Horn Speakers (2-Pairs)

MP84_2 big
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Diamond Audio MP84 (2-Pairs, 4-Total)

800W MAX (400W RMS) 8" PRO Full-Range Coaxial Horn Speakers (2-Pairs)

• 200 watts Max Each, 100 watts RMS Each
• 1" Aluminum Horn Tweeters
• Heavy duty die-cast aluminum basket
• Advanced voice coil heat sink design for better heat dissipation
• Sensitivity: 103 dB
• Mounting Depth: 7.09"

Save 15% Off Package Deals at Checkout!
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$1,099.98

In stock.

Add to Cart

• 200 watts Max Each, 100 watts RMS Each
• 1" Aluminum Horn Tweeters
• Heavy duty die-cast aluminum basket
• Advanced voice coil heat sink design for better heat dissipation
• Sensitivity: 103 dB
• Mounting Depth: 7.09"

Diamond Audio MS65NEO (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" MS Series Midrange Coaxial Car Speakers (2-Pairs)

MS65NEO_2 big
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Diamond Audio MS65NEO (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" MS Series Midrange Coaxial Car Speakers (2-Pairs)

• 300 watts Max Each, 150 watts RMS Each
• Tweeters
• Waterproof black Dupont Kevlar cone and dust cap
• Impedance: 4 ohm
• Sensitivity: 94 dB
• Mounting Depth: 2.78"

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1
$1,539.98

In stock.

Add to Cart

• 300 watts Max Each, 150 watts RMS Each
• Tweeters
• Waterproof black Dupont Kevlar cone and dust cap
• Impedance: 4 ohm
• Sensitivity: 94 dB
• Mounting Depth: 2.78"

Diamond Audio DMD35 (2-Pairs, 4-Total)

160W Peak (80W RMS) 3.5” DMD Series Full Range Coaxial Car Speakers (2-Pairs)

DMD35_2 big
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Diamond Audio DMD35 (2-Pairs, 4-Total)

160W Peak (80W RMS) 3.5” DMD Series Full Range Coaxial Car Speakers (2-Pairs)

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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$219.98

Available

Ships in 10-14 days

Add to Cart

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Diamond Audio HX653DI (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System (2-Pairs)

HX653DI_2 big
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Diamond Audio HX653DI (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System (2-Pairs)

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

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Fits your DeVille
$2,639.98

In stock.

Add to Cart

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

Diamond Audio DES652 with Speaker Installation Kit

(120W RMS) 6.5" DES Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

DES652, XBAF65, SDSK2, SDRLR1, BTK106 big
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Diamond Audio DES652 with Speaker Installation Kit

(120W RMS) 6.5" DES Series 2-Way Component Speaker System + 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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

Save $31 on install kits for this speaker

found car based on your search
Fits multiple locations in your DeVille
256
List price $307.70
-11% $273.52 /pair

Available

Ships in 10-14 days

Add to Cart

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio DMD35 with Sound Damping

80W Peak (40W RMS) 3.5” DMD Series Full Range Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD35_SDSK2 big
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Diamond Audio DMD35 with Sound Damping

80W Peak (40W RMS) 3.5” DMD Series Full Range Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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Fits your DeVille
48
List price $128.73
$124.98

Available

Ships in 10-14 days

Add to Cart

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Diamond Audio DES692 with Sound Damping

300W Peak (150W RMS) 6x9" Elite Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DES692_SDSK2 big
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Diamond Audio DES692 with Sound Damping

300W Peak (150W RMS) 6x9" Elite Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber 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.
found car based on your search
Fits your DeVille
48
$274.98

In stock.

Add to Cart

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Diamond Audio MP84 with Sound Damping

400W MAX (200W RMS) 8" PRO Full-Range Coaxial Horn Speakers + NVX SDSK2 Sound Damping

MP84_SDSK2 big
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Diamond Audio MP84 with Sound Damping

400W MAX (200W RMS) 8" PRO Full-Range Coaxial Horn Speakers + NVX SDSK2 Sound Damping

• 400 watts Max Each, 200 watts RMS Each
• 1" Aluminum Horn Tweeters
• Heavy duty die-cast aluminum basket
• Advanced voice coil heat sink design for better heat dissipation
• Sensitivity: 103 dB
• Mounting Depth: 7.09"

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
48
$564.98

In stock.

Add to Cart

• 400 watts Max Each, 200 watts RMS Each
• 1" Aluminum Horn Tweeters
• Heavy duty die-cast aluminum basket
• Advanced voice coil heat sink design for better heat dissipation
• Sensitivity: 103 dB
• Mounting Depth: 7.09"

Diamond Audio H65SH with Sound Damping

300W Peak (150W RMS) 6.5" HEX 2-Way Shallow Component Speakers + NVX SDSK2 Sound Damping

H65SH_SDSK2 big
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Diamond Audio H65SH with Sound Damping

300W Peak (150W RMS) 6.5" HEX 2-Way Shallow Component Speakers + NVX SDSK2 Sound Damping

• 150 watts Max Each, 75 watts RMS Each
• 2" Neodymium tweeters available in silk or aluminum
• Hard anodized black aluminum cone
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 1.3"

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shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your DeVille
48
$764.98

In stock.

Add to Cart

• 150 watts Max Each, 75 watts RMS Each
• 2" Neodymium tweeters available in silk or aluminum
• Hard anodized black aluminum cone
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 1.3"

Diamond Audio H65S with Sound Damping

300W Peak (150W RMS) 6.5" HEX Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

H65S_SDSK2 big
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Diamond Audio H65S with Sound Damping

300W Peak (150W RMS) 6.5" HEX Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 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
48
$784.98

In stock.

Add to Cart

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

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    FAQ for Speakers in 2003 DeVille

    Q: Can I upgrade or change the Speakers in 2003 Cadillac DeVille?

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

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    Shop your 2003 DeVille
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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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