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MB Quart PS1-216

240W Peak (120W RMS) 6.5" Premium Series 2-Way 4-ohm Component Speaker System

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240W Peak (120W RMS) 6.5" Premium Series 2-Way 4-ohm Component Speaker System

• 120 watts Peak Each, 60 watts RMS Each
• 1" Magnesium Dome tweeters
• Tunable waveguide tweeter housing
• Pop Paper-Mica Blend cone material
• Curvilinear cone design geometry
• Impedance: 4 ohm
• Sensitivity: 88.9 dB

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List price $239.99
-29% $170.62 /set

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Deaf Bonce Machete MM-60 NEO V2

400W Peak (200W RMS) 6.5" Machete Series Midrange 4-ohm Car Speakers

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400W Peak (200W RMS) 6.5" Machete Series Midrange 4-ohm Car Speakers

• 200 watts Peak Each, 100 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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$84.90 /pair

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Sundown Audio E-6.5CX

120W RMS 6.5" E Series Coaxial 4-ohm Speakers (S-E6.5CX)

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120W RMS 6.5" E Series Coaxial 4-ohm Speakers (S-E6.5CX)

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

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List price $119.99
-33% $79.99 /pair

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Massive Audio FC6X

300W Peak (150W RMS) 6.5" FC Series Coaxial 4-ohm Speakers

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300W Peak (150W RMS) 6.5" FC Series Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 13/16" Silk Dome Tweeters
• Fiber Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $234.99
-64% $84.99 /pair

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Cerwin-Vega V525

600W Peak (200W RMS) 5.25" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

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600W Peak (200W RMS) 5.25" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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$149.99 /pair

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Diamond Audio DMD653

200W Peak (100W RMS) 6.5" DMD Series 3-way Coaxial Car Speakers

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200W Peak (100W RMS) 6.5" DMD Series 3-way Coaxial Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• 0.79" Silk Dome tweeters
• Polypropylene cone material with reinforced stamped pattern
• Impedance: 4 ohm
• Sensitivity: 87 dB

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List price $149.99
-5% $142.99 /pair

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Available Offers (2) for Diamond Audio DMD653
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List price $149.99
-5% $142.99
$128.69 with coupon | Price details
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Cerwin-Vega H65C

720W Peak (240W RMS) 6.5" HED Series 2 Way Component 4-ohm Speaker System

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720W Peak (240W RMS) 6.5" HED Series 2 Way Component 4-ohm Speaker System

• 360 watts Peak Each, 120 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$189.99 /set

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Available Offers (2) for Cerwin-Vega H65C
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$189.99
$151.99 with coupon | Price details
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Hertz MPK 1650.3

500W Peak (250W RMS) 6.5" Mille PRO Series 2 Way 3-ohm Component Speaker System

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500W Peak (250W RMS) 6.5" Mille PRO Series 2 Way 3-ohm Component Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1-7/16" Tetolon Dome tweeters
• Pressed Pulp with Cotton Fiber with cotton fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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List price $940.00
-15% $799.99 /set

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DS18 PRO-X8.4BM (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker

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550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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$70.95

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Hertz X 170

400W Peak (100W RMS) 6.75” Uno Series 2-way 4-ohm Coaxial Car Speakers

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400W Peak (100W RMS) 6.75” Uno Series 2-way 4-ohm Coaxial Car Speakers

• 200 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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List price $95.00
-16% $79.99 /pair

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DS18 6XL650N-4 (Sold Individually)

650W Peak (325W RMS) 6.5" XL Series Midrange 4-ohm Loudspeaker

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650W Peak (325W RMS) 6.5" XL Series Midrange 4-ohm Loudspeaker

• 650 watts Peak, 325 watts RMS
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 98.5 dB

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List price $244.99
-17% $203.95

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JBL STAGE3 GEN2 68C (STAGE368C)

1520W Peak (190W RMS) 6.5" Stage3 Gen2 Series 2-Way Component Speaker System with Grilles

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1520W Peak (190W RMS) 6.5" Stage3 Gen2 Series 2-Way Component Speaker System with Grilles

• 760 watts Peak Each, 95 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $149.95
-13% $129.95 /set

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Crunch CS65CXS

600W Peak (120W RMS) 6.5" CS Series 2-Way Coaxial 4-ohm Speakers

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600W Peak (120W RMS) 6.5" CS Series 2-Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 60 watts RMS Each
• 1" Neo-Mylar Soft Dome tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $32.99
-9% $29.99 /pair

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Hertz SV 200L

1000W Peak (500W RMS) 8" SPL Show Series 4-ohm Midbass Component Woofers

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1000W Peak (500W RMS) 8" SPL Show Series 4-ohm Midbass Component Woofers

• 500 watts Peak Each, 250 watts RMS Each
• Pulp Cotton Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94.5 dB

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List price $405.00
-14% $349.99 /pair

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JL Audio C2-525

120W RMS 5.25" C2 Series 2-Way 4-ohm Component Speaker System

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120W RMS 5.25" C2 Series 2-Way 4-ohm Component Speaker System

• 60 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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$329.99 /set

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Used from: $280.49

Diamond Audio DMDX8C

390W Peak (130W RMS) 8" DMDX Series 2-Way Component Speaker System

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390W Peak (130W RMS) 8" DMDX Series 2-Way Component Speaker System

• 195 watts Peak Each, 65 watts RMS Each
• 1" Soft Dome Tweeters
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$299.99 /set

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• 195 watts Peak Each, 65 watts RMS Each
• 1" Soft Dome Tweeters
• Impedance: 4 ohm
• Sensitivity: 87 dB

AudioControl PNW-35

100W Peak (50W RMS) 3.5″ PNW Series 2 Way Coaxial 2-ohm Speakers

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100W Peak (50W RMS) 3.5″ PNW Series 2 Way Coaxial 2-ohm Speakers

• 50 watts Peak Each, 25 watts RMS Each
• Hybrid Silk Dome tweeters
• Rigid Poly Mica cone material
• Impedance: 2 ohm
• Sensitivity: 83.17 dB

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  • Dash Corner
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List price $169.00
-12% $149.00 /pair

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Kicker PSC652 (51PSC652)

240W Peak (120W RMS) 6.5" PS Series 2 Way Coaxial 2-ohm Marine and Powersports Speakers

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240W Peak (120W RMS) 6.5" PS Series 2 Way Coaxial 2-ohm Marine and Powersports Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92.5 dB

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List price $219.99
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-27% $159.96 /pair

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DS18 ZXI-654

480W Peak (160W RMS) 6.5" ZXI Series 2-way 4-ohm Coaxial Car Speakers

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480W Peak (160W RMS) 6.5" ZXI Series 2-way 4-ohm Coaxial Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 1" PEI (Polyetherimide) tweeters with neodymium magnets
• Glass Fiber cone material with KSV former
• Impedance: 4 ohm
• Sensitivity: 89 dB

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$94.95 /pair

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Sundown Audio SA-8M 8" (SA8M)

500W Peak (260W RMS) 8" SA Series Mid-Bass 4-ohm Speakers (S-SA8M)

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500W Peak (260W RMS) 8" SA Series Mid-Bass 4-ohm Speakers (S-SA8M)

• 250 watts Peak Each, 130 watts RMS Each
• Woven Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

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List price $479.99
-17% $399.99 /pair

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    FAQ for Speakers in 2008 CTS

    Q: Can I upgrade or change the Speakers in 2008 Cadillac CTS?

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

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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