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2018 Kia Optima

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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 2018 Kia Optima

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

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

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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Dads & Grads Sale

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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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Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

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Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Save $21 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
122
List price $119.99
Save $40.03
-33% $79.96 /pair

In stock

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Used from: $69.99 Like New from: $84.99
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Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

43DSC6504 big
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Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

• 240 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome zero-protrusion tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Save $17 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
28
List price $94.99
-11% $84.99 /pair

In stock

Add to Cart
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Limited time!

Kicker KSS65 (51KSS6504) (Like New (Open Box))

500W Peak (250W RMS) 6.5" KS Series 2-Way 4-ohm Component Speaker System

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Kicker KSS65 (51KSS6504) (Like New (Open Box))

500W Peak (250W RMS) 6.5" KS Series 2-Way 4-ohm Component Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
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Save $5 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
List price $279.99
-24% $212.49 /set
$191.24 with coupon | Price details

In stock

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Limited time!

Kicker KSS365 (51KSS365)

500W Peak (250W RMS) 6.5" KS Series 3-Way 4-ohm Component Speaker System

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Kicker KSS365 (51KSS365)

500W Peak (250W RMS) 6.5" KS Series 3-Way 4-ohm Component Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Fits GM, Ford, Chrysler, Jeep, Dodge and select imports

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found car based on your search
Fits multiple locations in your Optima
1
List price $379.99
-8% $349.99 /set

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Kicker KSC4 (51KSC404)

300W Peak (150W RMS) 4" KS Series 2 Way Coaxial 4-ohm Speakers

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Kicker KSC4 (51KSC404)

300W Peak (150W RMS) 4" KS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" Silk Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
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Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
3
List price $119.99
-17% $99.99 /pair

In stock

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Limited time!

Kicker CSS67 (46CSS674)

600W Peak (200W RMS) 6.75" CS Series 2 Way Component 4-ohm Speaker System

46CSS674 big
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Kicker CSS67 (46CSS674)

600W Peak (200W RMS) 6.75" CS Series 2 Way Component 4-ohm Speaker System

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 1-7/8"

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VIP Product Get $14.40 in rewards to spend later

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Save $28 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
2
List price $199.99
Save $56.03
-28% $143.96 /set

In stock

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Used from: $125.99
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Limited time!

Kicker KSC65 (51KSC6504)

400W Peak (200W RMS) 6.5" KS Series 2 Way Coaxial 4-ohm Speakers

51KSC6504 big
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Kicker KSC65 (51KSC6504)

400W Peak (200W RMS) 6.5" KS Series 2 Way Coaxial 4-ohm Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Save $29 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
5
List price $149.99
-13% $129.99 /pair

In stock

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See all 14 special offers
Limited time!

Kicker CSS67 (46CSS674) (Open Box, Great)

600W Peak (200W RMS) 6.75" CS Series 2 Way Component 4-ohm Speaker System

46CSS674 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSS67 (46CSS674) (Open Box, Great)

600W Peak (200W RMS) 6.75" CS Series 2 Way Component 4-ohm Speaker System

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 1-7/8"

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for this speaker

found car based on your search
Fits multiple locations in your Optima
List price $199.99
-37% $125.99 /set
$113.39 with coupon | Price details

In stock

Only 1 Left!

Add to Cart

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 1-7/8"

Limited time!

Kicker KSS65 (51KSS6504)

500W Peak (250W RMS) 6.5" KS Series 2-Way 4-ohm Component Speaker System

51KSS6504 big
Go to item page Right Arrow Icon of Right Arrow

Kicker KSS65 (51KSS6504)

500W Peak (250W RMS) 6.5" KS Series 2-Way 4-ohm Component Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

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Save $29 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
2
List price $279.99
-11% $249.99 /set

In stock

Only 2 Left!

Add to Cart
Like New from: $212.49
See all 14 special offers

Kicker KSC270 (51KSC2704)

200W Peak (100W RMS) 2.75" KS Series Midrange 4-ohm Speakers with Custom Brackets for GM, Chrysler, Subaru, Toyota and Jeep Models

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Kicker KSC270 (51KSC2704)

200W Peak (100W RMS) 2.75" KS Series Midrange 4-ohm Speakers with Custom Brackets for GM, Chrysler, Subaru, Toyota and Jeep Models

• 100 watts Peak Each, 50 watts RMS Each
• Composite Paper cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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Save up to $10 on install kits for this speaker

additional information required
Fits select locations in your Optima.
Add vehicle details to confirm exact location.
3
List price $69.99
-14% $59.99 /pair

In stock

Add to Cart
See all 5 special offers
Limited time!

Kicker CSC67 (46CSC674) (Open Box, Great)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC674 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSC67 (46CSC674) (Open Box, Great)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for this speaker

found car based on your search
Fits multiple locations in your Optima
List price $119.99
-42% $69.99 /pair
$62.99 with coupon | Price details

In stock

Only 3 Left!

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Limited time!

Kicker CSS65 (46CSS654) (Open Box, Great)

600W Peak (200W RMS) 6.5" CS Series 2 Way Component 4-ohm Speaker System

46CSS654 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSS65 (46CSS654) (Open Box, Great)

600W Peak (200W RMS) 6.5" CS Series 2 Way Component 4-ohm Speaker System

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 9/16"

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for this speaker

found car based on your search
Fits multiple locations in your Optima
List price $199.99
-37% $125.99 /set
$113.39 with coupon | Price details

In stock

Only 1 Left!

Add to Cart

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 9/16"

Limited time!

Kicker CSC4 (46CSC44) (Open Box, Great)

300W Peak (100W RMS) 4” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC44 big
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Kicker CSC4 (46CSC44) (Open Box, Great)

300W Peak (100W RMS) 4” CS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Steel mesh speaker grilles included
• Impedance: 4 ohm
• Sensitivity: 88 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
List price $84.99
-38% $52.49 /pair
$47.24 with coupon | Price details

In stock

Add to Cart

• 150 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Steel mesh speaker grilles included
• Impedance: 4 ohm
• Sensitivity: 88 dB

Limited time!

Kicker CSC67 (46CSC674)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC674 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSC67 (46CSC674)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $15 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
9
List price $119.99
Save $40.03
-33% $79.96 /pair

In stock

Add to Cart
Used from: $69.99
See all 13 special offers
Limited time!

Kicker CSC4 (46CSC44)

300W Peak (100W RMS) 4” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC44 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSC4 (46CSC44)

300W Peak (100W RMS) 4” CS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Steel mesh speaker grilles included
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
1
List price $84.99
Save 29%
-29% $59.96 /pair

In stock

Add to Cart
Used from: $52.49
See all 6 special offers
Limited time!

Kicker CSS65 (46CSS654)

600W Peak (200W RMS) 6.5" CS Series 2 Way Component 4-ohm Speaker System

46CSS654 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSS65 (46CSS654)

600W Peak (200W RMS) 6.5" CS Series 2 Way Component 4-ohm Speaker System

• 300 watts Max Each, 100 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 9/16"

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $14.40 in rewards to spend later

install icon

Save $22 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
9
List price $199.99
Save $56.03
-28% $143.96 /set

In stock

Add to Cart
Used from: $125.99
See all 14 special offers
Limited time!

Kicker CSC65 (46CSC654) (Like New (Open Box))

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC654 big
Go to item page Right Arrow Icon of Right Arrow

Kicker CSC65 (46CSC654) (Like New (Open Box))

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $29 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
1
List price $119.99
-29% $84.99 /pair
$76.49 with coupon | Price details

In stock

Only 3 Left!

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Kicker DSC40 (43DSC404)

240W Peak (60W RMS) 4" DS Series 2-way 4-ohm Coaxial Car Speakers

43DSC404 big
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Kicker DSC40 (43DSC404)

240W Peak (60W RMS) 4" DS Series 2-way 4-ohm Coaxial Car Speakers

• 120 watts Peak Each, 30 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material with Extended Voice Coil (EVC) technology
• Impedance: 4 ohm
• Sensitivity: 88 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Free or discounted install kits when available.

Fits select models only.
Add details to confirm fitment.
2
List price $74.99
-13% $64.99 /pair

In stock

Add to Cart
See all 8 special offers
Limited time!

Kicker KSS67 (51KSS6704)

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

51KSS6704 big
Go to item page Right Arrow Icon of Right Arrow

Kicker KSS67 (51KSS6704)

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

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

install icon

Save $29 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
1
List price $279.99
-11% $249.99 /set

In stock

Add to Cart
See all 14 special offers

Kicker DSC670 (43DSC6704)

240W Peak (60W RMS) 6.75" DS Series 2-Way Coaxial Car Speakers with PEI Tweeters (DSC6704)

43DSC6704 big
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Kicker DSC670 (43DSC6704)

240W Peak (60W RMS) 6.75" DS Series 2-Way Coaxial Car Speakers with PEI Tweeters (DSC6704)

• 200 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $26 on install kits for this speaker

found car based on your search
Fits multiple locations in your Optima
3
List price $94.99
-11% $84.99 /pair

In stock

Add to Cart
See all 14 special offers
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    Q: Can I upgrade or change the Speakers in 2018 Kia Optima?

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