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MTX Audio THUNDER61

180W RMS 6.5" Thunder Series 2 Way Component 4-ohm Speaker System

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180W RMS 6.5" Thunder Series 2 Way Component 4-ohm Speaker System

• 90 watts RMS Each
• 1-3/8" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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$249.96 /set

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Infinity KAPPA 693C (INFSPKKA693CFAM)

870W Peak (290W RMS) 6x9” Kappa Series 2 Way Component 4-ohm Speaker System

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870W Peak (290W RMS) 6x9” Kappa Series 2 Way Component 4-ohm Speaker System

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

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  • Rear Deck Corner
List price $549.95
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-27% $399.95 /set

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JBL Stage3 637F (STAGE3637FAM) (Open Box, Great)

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

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

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

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$109.99 /pair
$98.99 with coupon | Price details

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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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List price $290.00
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-38% $179.00 /set

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Deaf Bonce Black Hydra Delta 613X

240W Peak (120W RMS) 6.5" Black Hydra Series 2 Way Coaxial 4-ohm Speakers

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240W Peak (120W RMS) 6.5" Black Hydra Series 2 Way Coaxial 4-ohm Speakers

• 120 watts Peak Each, 60 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 89.8 dB

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$59.90 /pair

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JL Audio CF-690w

200W RMS 6x9" CF Series Component 4-ohm Woofer

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200W RMS 6x9" CF Series Component 4-ohm Woofer

• 100 watts RMS Each
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84.8 dB

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$499.99 /pair

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Kenwood eXcelon XR-1701

600W Peak (200W RMS) 6.5" eXcelon Reference Series 2-Way Coaxial 3-ohm Car Speakers (Hi-Res Audio Certified)

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600W Peak (200W RMS) 6.5" eXcelon Reference Series 2-Way Coaxial 3-ohm Car Speakers (Hi-Res Audio Certified)

• 300 watts Peak Each, 100 watts RMS Each
• 1-3/16" Titanium Hard Dome Tweeters
• Glass Fiber cone material
• High-resolution (Hi-Res) audio certified
• Impedance: 3 ohm
• Sensitivity: 87 dB

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List price $290.00
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-38% $179.00 /pair

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Hertz CPK 165

630W Peak (210W RMS) 6.5" Cento Series 2-way 4-ohm Component Speaker System

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630W Peak (210W RMS) 6.5" Cento Series 2-way 4-ohm Component Speaker System

• 315 watts Peak Each, 105 watts RMS Each
• 1.14" Tetolon Soft Dome tweeters with neodymium magnets
• Pressed Paper cone material with FEM-optimized geometry
• Impedance: 4 ohm
• Sensitivity: 92.5 dB

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List price $600.00
-17% $499.99 /set

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DS18 PRO-GM6.4PK

960W Peak (280W RMS) 6.5” PRO-GM Series 4-ohm Component Midrange Car Speakers

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960W Peak (280W RMS) 6.5” PRO-GM Series 4-ohm Component Midrange Car Speakers

• 480 watts Peak Each, 140 watts RMS Each
• 1" Aluminum Super Bullet tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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$103.95 /pair

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Infinity Primus 603CF (PR603CF)

360W Peak (120W RMS) 6.5" Primus Series 2 Way 3-ohm Component Speaker System

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360W Peak (120W RMS) 6.5" Primus Series 2 Way 3-ohm Component Speaker System

• 180 watts Peak Each, 60 watts RMS Each
• 3/4" Silk Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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List price $159.95
-19% $129.95 /set

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Hertz X 165

440W Peak (110W RMS) 6.5" Uno Series 2-Way Coaxial 4-ohm Car Speakers

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440W Peak (110W RMS) 6.5" Uno Series 2-Way Coaxial 4-ohm Car Speakers

• 220 watts Peak Each, 55 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Water-repellent 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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MB Quart FKB169

300W Peak (150W RMS) 6x9" Formula Series 2-Way 4-ohm Coaxial Car Speakers

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300W Peak (150W RMS) 6x9" Formula Series 2-Way 4-ohm Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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  • Rear Deck Corner
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List price $89.99
-43% $50.99 /pair

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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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List price $87.39
-20% $69.91 /pair

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Alpine HDZ-65C

600W Peak (200W RMS) 6.5” Status Series Hi-Res 2-Way Component 4-ohm Speaker System

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600W Peak (200W RMS) 6.5” Status Series Hi-Res 2-Way Component 4-ohm Speaker System

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

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List price $1080.00
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-33% $719.95 /set

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Pioneer TS-A653CH

740W Peak (170W RMS) 6.5" A-Series 2 Way Component 4-ohm Speakers

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740W Peak (170W RMS) 6.5" A-Series 2 Way Component 4-ohm Speakers

• 370 watts Peak Each, 85 watts RMS Each
• 3/4" PEI (Polyetherimide) Hard Dome tweeters
• Aramid fiber reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $180.00
-17% $149.99 /set

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Alpine DM-65-G

400W Peak (100W RMS) 6.5" DM Series 2-Way Coaxial 4-ohm Car Speakers

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400W Peak (100W RMS) 6.5" DM Series 2-Way Coaxial 4-ohm Car Speakers

• 200 watts Peak Each, 50 watts RMS Each
• 0.8" Teteron Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $110.00
-18% $89.95 /pair

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Like New from: $76.46

AudioControl EPICPRO6S

600W Peak (400W RMS) 6.5" Epic Pro Series Pro Audio Midrange 4-ohm Shallow Car Speakers

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600W Peak (400W RMS) 6.5" Epic Pro Series Pro Audio Midrange 4-ohm Shallow Car Speakers

• 300 watts Peak Each, 200 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93.1 dB

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$109.00 /pair

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Kicker KSS67 (51KSS6704)

500W Peak (250W RMS) 6.75" KS Series 2 Way Component 4-ohm Speaker System

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500W Peak (250W RMS) 6.75" KS Series 2 Way Component 4-ohm Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $279.99
-11% $249.99 /set

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NVX VPRO65HS (Sold Individually)

350W Peak (175W RMS) 6.5" V-Series Pro 2 Way Coaxial Shallow Loudspeaker

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350W Peak (175W RMS) 6.5" V-Series Pro 2 Way Coaxial Shallow Loudspeaker

• 350 watts Peak Each, 175 watts RMS Each
• 1" Aluminum Horn tweeter
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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List price $95.99
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Used from: $45.49

Sundown Audio SA-69CX v.2 (SA69CX)

250W RMS 6x9" SA Series 2 Way Coaxial 4-ohm Speakers (S-SA69CXV2)

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250W RMS 6x9" SA Series 2 Way Coaxial 4-ohm Speakers (S-SA69CXV2)

• 125 watts RMS Each
• Silk Dome Tweeters
• Hybrid Fiber Pulp cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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Install kits available for most vehicles

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  • Rear Deck Corner
List price $311.99
-17% $259.99 /pair

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    FAQ for Speakers in 2005 Optima

    Q: Can I upgrade or change the Speakers in 2005 Kia Optima?

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

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

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