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JL Audio C1-650x (Open Box, Great)

150W Peak (100W RMS) 6.5" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

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150W Peak (100W RMS) 6.5" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

• 75 watts Peak Each, 50 watts RMS Each
• 3/4" Silk-suspended Aluminum Dome ferrofluid-cooled tweeters with neodymium magnets
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
42
List price $129.99
-15% $110.49 /pair

In stock

Limited time!

Rockford Fosgate Punch P3 P3V2-65

300W Peak (150W RMS) 6.5" P3 Series 3-Way 4-ohm Component Car Speaker System

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300W Peak (150W RMS) 6.5" P3 Series 3-Way 4-ohm Component Car Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Tetolon Inverted Dome Tweeters
• 20-40% Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
List price $755.99
Save $186.00
-25% $569.99 /set

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Alpine SXE-1751S

440W Peak (80W RMS) 6.5" SXE-Series 2-way 4-ohm Component Speakers with Mylar-Titanium Tweeters

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440W Peak (80W RMS) 6.5" SXE-Series 2-way 4-ohm Component Speakers with Mylar-Titanium Tweeters

• 220 watts Peak Each, 40 watts RMS Each
• Mylar/Titanium Hybrid Balanced Dome tweeters
• Pulp cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
4
List price $77.99
-17% $64.99 /set

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JBL STAGE2 65

120W Peak (60W RMS) 6.5" Stage 2 Gen 2 Series 2 Way Coaxial Speakers

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120W Peak (60W RMS) 6.5" Stage 2 Gen 2 Series 2 Way Coaxial Speakers

• 60 watts Peak Each, 30 watts RMS Each
• PEI (Polyetherimide) Edge Driven Dome tweeters
• Polypropylene cone material
• Sensitivity: 87 dB

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Fits multiple locations in your STS
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List price $64.95
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-9% $58.95 /pair

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DS18 DX2

800W Peak (400W RMS) 6.5” DX Series 2-way 4-ohm Component Speaker System

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800W Peak (400W RMS) 6.5” DX Series 2-way 4-ohm Component Speaker System

• 400 watts Peak Each, 200 watts RMS Each
• 1.18" Silk Dome tweeters with neodymium magnets
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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1
List price $399.95
-25% $299.95 /set

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Hertz K 165

300W Peak (75W RMS) 6.5" Uno Series 2-way 4-ohm Component Speaker System

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300W Peak (75W RMS) 6.5" Uno Series 2-way 4-ohm Component Speaker System

• 300 watts Peak Each, 75 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters with neodymium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
4
List price $150.00
-33% $99.99 /set

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Pioneer TS-Z65CH

660W Peak (220W RMS) 6.5" Z-Series 2-Way 4-ohm Component Speaker System

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660W Peak (220W RMS) 6.5" Z-Series 2-Way 4-ohm Component Speaker System

• 330 watts Peak Each, 110 watts RMS Each
• 1.1" Aluminum Alloy Balanced Dome tweeters
• Twaron Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
List price $400.00
Save $145.00
-36% $255.00 /set

In stock

Only 1 Left!

• 330 watts Peak Each, 110 watts RMS Each
• 1.1" Aluminum Alloy Balanced Dome tweeters
• Twaron Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Limited time!

Rockford Fosgate Punch P1 P165-SI

240W Peak (120W RMS) 6.5" Punch Series 2 Way Component 4-ohm Speakers

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240W Peak (120W RMS) 6.5" Punch Series 2 Way Component 4-ohm Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 1" treated PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
9
$159.99 /set

In stock

Used from: $135.99

Sony XS-162GS with Sound Damping

500W Peak (90W RMS) 6.5" GS Series 2-way 4-ohm Component Car Speakers + NVX SDBSK2 Premium Sound Damping

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500W Peak (90W RMS) 6.5" GS Series 2-way 4-ohm Component Car Speakers + NVX SDBSK2 Premium Sound Damping

• 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

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46
List price $218.73
$212.99

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• 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

Precision Power MAS.652HT

600W Peak (300W RMS) 6.5" MAS Series 2-Way Coaxial 2-ohm Horn Loaded Motorcycle Speakers

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600W Peak (300W RMS) 6.5" MAS Series 2-Way Coaxial 2-ohm Horn Loaded Motorcycle Speakers

• 300 watts Peak Each, 150 watts RMS Each
• Titanium Ring Radiator Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
List price $579.99
-22% $449.99 /pair

In stock

Only 1 Left!

• 300 watts Peak Each, 150 watts RMS Each
• Titanium Ring Radiator Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 93 dB

Hifonics ZS653

600W Peak (100W RMS) 6.5" Zeus Series 3-way 4-ohm Coaxial Car Speakers

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600W Peak (100W RMS) 6.5" Zeus Series 3-way 4-ohm Coaxial Car Speakers

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

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
14
$34.99 /pair

In stock

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JBL Stage3 627 (Stage3627AM)

270W Peak (90W RMS) 6.5" Stage3 Series 2 Way Coaxial 3-ohm Speakers

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270W Peak (90W RMS) 6.5" Stage3 Series 2 Way Coaxial 3-ohm Speakers

• 135 watts Peak Each, 45 watts RMS Each
• PEI (Polyetherimide) Dome tweeters
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 92 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
2
List price $109.95
Save $25.00
-23% $84.95 /pair

In stock

Sundown Audio SA-2.75FR v.2 (SA2.75)

60W RMS 2.75" SA Series Component 4-ohm OEM Replacement Speakers for Dodge and Chrysler Vehicles (S-SA2.75FR)

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60W RMS 2.75" SA Series Component 4-ohm OEM Replacement Speakers for Dodge and Chrysler Vehicles (S-SA2.75FR)

• 30 watts RMS Each
• Aluminum cone material
• Impedance: 4 ohm

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found car based on your search
Fits the following location in your STS
  • Dash Corner
1
List price $71.99
-17% $59.99 /pair

In stock

DS18 PRO-SM6.2 (Sold Individually)

400W Peak (200W RMS) 6.5” PRO Series Shallow Midrange 2-ohm Motorcycle and Powersports Loudspeaker

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400W Peak (200W RMS) 6.5” PRO Series Shallow Midrange 2-ohm Motorcycle and Powersports Loudspeaker

• 400 watts Peak, 200 watts RMS
• Water-Resistant Paper cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
2
$64.95

In stock

• 400 watts Peak, 200 watts RMS
• Water-Resistant Paper cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

Limited time!

Alpine HDZ-653S

600W Peak (200W RMS) 6.5” Status Series Hi-Res 3-Way Component 4-ohm Shallow Speaker System

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600W Peak (200W RMS) 6.5” Status Series Hi-Res 3-Way Component 4-ohm Shallow Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• Hi-Res Audio Certified
• 1" Carbon Composite Cone Tweeters
• Slim-fit shallow tweeter construction
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
List price $1440.00
Save $480.05
-33% $959.95 /set

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Kenwood eXcelon KFC-XP184C

560W Peak (160W RMS) 6.5" eXcelon Series 2-Way 4-ohm Component Car Speakers

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560W Peak (160W RMS) 6.5" eXcelon Series 2-Way 4-ohm Component Car Speakers

• 280 watts Peak Each, 80 watts RMS Each
• 1" Silk Soft Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.3 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
3
List price $290.00
Save $111.00
-38% $179.00 /set

In stock

Hifonics ZS35CX

250W Peak (50W RMS) 3.5” Zeus Series 2-way 4-ohm Coaxial Car Speakers

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250W Peak (50W RMS) 3.5” Zeus Series 2-way 4-ohm Coaxial Car Speakers

• 125 watts Peak Each, 25 watts RMS Each
• 1" Neo-Mylar Soft Dome tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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found car based on your search
Fits multiple locations in your STS
  • Center Dash
  • Rear Deck Corner
10
$24.99 /pair

In stock

Used from: $17.49

PRV Audio RS65-CX

320W Peak (160W RMS) 6.5" RS Series 2 Way Coaxial 4-ohm Car Speakers

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320W Peak (160W RMS) 6.5" RS Series 2 Way Coaxial 4-ohm Car Speakers

• 160 watts Peak Each, 80 watts RMS Each
• 1" Silk Soft Dome tweeter
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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found car based on your search
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  • Front Door
  • Rear Door
List price $87.39
-20% $69.91 /pair

In stock

Only 1 Left!

Cerwin Vega CVMPCL6.5 (Sold Individually)

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

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

• 200 watts Peak Each, 100 watts RMS Each
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93.2 dB

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found car based on your search
Fits multiple locations in your STS
  • Front Door
  • Rear Door
9
List price $119.99
-17% $99.99

In stock

Limited time!

Sony XS-162GS

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

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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

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List price $199.99
$198.00 /set

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    FAQ for Speakers in 2011 STS

    Q: Can I upgrade or change the Speakers in 2011 Cadillac STS?

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

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