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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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Price Range
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.
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Hertz MPK163.3 with Sound Damping

300W Peak (150W RMS) 6.5" Mille PRO Series 3-Way 4 Ohm Component speaker system + NVX SDSK2 Sound Damping

MPK1633_SDSK2 big
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Hertz MPK163.3 with Sound Damping

300W Peak (150W RMS) 6.5" Mille PRO Series 3-Way 4 Ohm Component speaker system + NVX SDSK2 Sound Damping

• 150 Watts Max Each, 75 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 92 dB

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48
List price $1193.74
-15% $1,014.98

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• 150 Watts Max Each, 75 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 92 dB

Lowest price in 30 days

Infinity Kappa 63XF with Sound Damping

510W Peak (170W RMS) 6.5" Kappa Series 2-Way Coaxial Speakers with Silk Dome Tweeters + NVX SDSK2 Sound Damping

KAPPA63XF_SDSK2 big
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Infinity Kappa 63XF with Sound Damping

510W Peak (170W RMS) 6.5" Kappa Series 2-Way Coaxial Speakers with Silk Dome Tweeters + NVX SDSK2 Sound Damping

• 255 watts Peak Each, 85 watts RMS Each
• Silk Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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56
List price $318.69
-33% $214.94

In stock

Only 2 Left!

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• 255 watts Peak Each, 85 watts RMS Each
• Silk Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Alpine S2-S65C with Sound Damping

480W Peak (160W RMS) 6.5" S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

S2S65C_SDSK2 big
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Alpine S2-S65C with Sound Damping

480W Peak (160W RMS) 6.5" S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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47
List price $238.74
-18% $194.94

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• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hertz SX 200 NEO with Installation Accessories

520W Peak (260W RMS) 8" NEO SPL Series 2-way 4-ohms coaxial car speakers + 8" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

SX200NEO_ACC_KIT big
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Hertz SX 200 NEO with Installation Accessories

520W Peak (260W RMS) 8" NEO SPL Series 2-way 4-ohms coaxial car speakers + 8" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 260 watts Peak Each, 130 watts RMS Each
• 1-3/4" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

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218
List price $787.71
-18% $646.33

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Ships in 10-14 days

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• 260 watts Peak Each, 130 watts RMS Each
• 1-3/4" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

Rockford Fosgate Power T1675 with Sound Damping

300W Peak (150W RMS) 6.75” Power Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

T1675_SDBSK2 big
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Rockford Fosgate Power T1675 with Sound Damping

300W Peak (150W RMS) 6.75” Power Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Carbon Fiber Reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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63
List price $238.73
$234.98

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Carbon Fiber Reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Rockford Fosgate Punch P165-SI with Sound Damping

240W Peak (120W RMS) 6.5" Punch Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

P165SI_SDBSK2 big
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Rockford Fosgate Punch P165-SI with Sound Damping

240W Peak (120W RMS) 6.5" Punch Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

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

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55
List price $178.73
$174.98

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

Alpine S2-S40 with Sound Damping

280W Peak (90W RMS) 4" S-Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

S2S40_SDSK2 big
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Alpine S2-S40 with Sound Damping

280W Peak (90W RMS) 4" S-Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 140 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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48
List price $148.74
-16% $124.94

In stock

Add to Cart

• 140 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

AudioControl PNW-275 with Sound Damping

100W Peak (30W RMS) 2.75″ PNW Series 1-way 3-ohm Component Midrange Speakers + NVX SDSK2 Sound Damping

PNW275_SDSK2 big
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AudioControl PNW-275 with Sound Damping

100W Peak (30W RMS) 2.75″ PNW Series 1-way 3-ohm Component Midrange Speakers + NVX SDSK2 Sound Damping

• 50 watts Peak Each, 15 watts RMS Each
• Paper Fiber with Mica Coating cone material
• Impedance: 3 ohm
• Sensitivity: 85.1 dB

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50
List price $147.74
-23% $113.99

In stock

Only 3 Left!

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• 50 watts Peak Each, 15 watts RMS Each
• Paper Fiber with Mica Coating cone material
• Impedance: 3 ohm
• Sensitivity: 85.1 dB

Diamond Audio MP654 with Sound Damping

300W Peak (150W RMS) 6.5" Motorsport Series PRO Full-Range Co-Ax Horn Speaker - Pair + NVX SDSK2 Sound Damping

MP654_SDSK2 big
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Diamond Audio MP654 with Sound Damping

300W Peak (150W RMS) 6.5" Motorsport Series PRO Full-Range Co-Ax 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: 3.33"

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49
List price $458.73
$454.98

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

Rockford Fosgate Power T2652-S with Sound Damping

400W Peak (200W RMS) 6.5" Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

T2652S_SDBSK2 big
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Rockford Fosgate Power T2652-S with Sound Damping

400W Peak (200W RMS) 6.5" Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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88
List price $468.73
$464.98

In stock

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Lowest price in 30 days

Alpine R2-S65 with Sound Damping

600W Peak (200W RMS) 6.5" R-Series 2-Way Coaxial Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

R2S65_SDSK2 big
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Alpine R2-S65 with Sound Damping

600W Peak (200W RMS) 6.5" R-Series 2-Way Coaxial Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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58
List price $418.74
-33% $278.94

In stock

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Pioneer TS-A709 with Sound Damping

900W Peak (200W RMS) 2.75” A-Series 2-Way Coaxial Speakers (Pair) + NVX SDBSK2 Premium Sound Damping

TSA709_SDBSK2 big
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Pioneer TS-A709 with Sound Damping

900W Peak (200W RMS) 2.75” A-Series 2-Way Coaxial Speakers (Pair) + NVX SDBSK2 Premium Sound Damping

• 450 watts Max Each, 100 watts RMS Each
• 16mm PEI (Polyetherimide) Dome Tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 82 dB
• Mounting Depth: 1-1/4"

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47
List price $98.74
-24% $74.99

Available

Ships in 10-14 days

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• 450 watts Max Each, 100 watts RMS Each
• 16mm PEI (Polyetherimide) Dome Tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 82 dB
• Mounting Depth: 1-1/4"

Infinity REF607CF with Installation Accessories

540W Peak (180W RMS) 6.5" Reference Series 2-way 4-ohm Component Speaker System + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

REF607CF_ACC_KIT big
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Infinity REF607CF with Installation Accessories

540W Peak (180W RMS) 6.5" Reference Series 2-way 4-ohm Component Speaker System + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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333
List price $337.66
-22% $264.01

In stock.

Add to Cart

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Textile Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Diamond Audio DMD653 with Sound Damping

200W Peak (100W RMS) 6.5" DMD Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD653_SDSK2 big
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Diamond Audio DMD653 with Sound Damping

200W Peak (100W RMS) 6.5" DMD Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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46
List price $168.73
-6% $157.98

In stock

Only 1 Left!

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• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Alpine S2-S40C with Sound Damping

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

S2S40C_SDSK2 big
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Alpine S2-S40C with Sound Damping

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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47
List price $198.74
-25% $149.95

In stock

Add to Cart

• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

NVX XSP652 with Sound Damping

600W Peak (200W RMS) 6.5" X-Series 2-Way Coaxial Speakers with Carbon Fiber Cones and 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

XSP652_SDBSK2 big
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NVX XSP652 with Sound Damping

600W Peak (200W RMS) 6.5" X-Series 2-Way Coaxial Speakers with Carbon Fiber Cones and 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 300 watts Max Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Lightweight Carbon Fiber cone
• Impedance: 4 ohm
• Sensitivity: 92 dB
• Mounting Depth: 2.52"

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65
List price $198.73
-34% $130.48

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• 300 watts Max Each, 100 watts RMS Each
• 1" Silk Dome Tweeters
• Lightweight Carbon Fiber cone
• Impedance: 4 ohm
• Sensitivity: 92 dB
• Mounting Depth: 2.52"

Rockford Fosgate T1650-S with Sound Damping

320W Peak (160W RMS) 6.5" Power Series 2-way 4-ohm Euro-Fit Component Speaker System + NVX SDBSK2 Premium Sound Damping

T1650S_SDBSK2 big
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Rockford Fosgate T1650-S with Sound Damping

320W Peak (160W RMS) 6.5" Power Series 2-way 4-ohm Euro-Fit Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 160 watts Peak Each, 80 watts RMS Each
• 1" Treated Fabric Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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47
List price $398.73
$394.98

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• 160 watts Peak Each, 80 watts RMS Each
• 1" Treated Fabric Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

AudioControl PNW-65 with Sound Damping

200W Peak (150W RMS) 6.5″ PNW Series 2-way Coaxial Speakers + NVX SDSK2 Sound Damping

PNW65_SDSK2 big
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AudioControl PNW-65 with Sound Damping

200W Peak (150W RMS) 6.5″ PNW Series 2-way Coaxial Speakers + NVX SDSK2 Sound Damping

• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.9 dB

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49
List price $297.74
-8% $273.99

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.9 dB

Hertz CK 165 with Sound Damping

285W Peak (95W RMS) 6.5" Cento Series 2-Way Component Speaker system + NVX SDSK2 Sound Damping

CK165_SDSK2 big
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Hertz CK 165 with Sound Damping

285W Peak (95W RMS) 6.5" Cento Series 2-Way Component Speaker system + NVX SDSK2 Sound Damping

• 142 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Mounting Depth: 2"

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47
List price $498.74
-17% $414.98

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• 142 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Mounting Depth: 2"

Hifonics ZS65CXS with Sound Damping

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers with Sound Damping

ZS65CXS_SDSK2 big
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Hifonics ZS65CXS with Sound Damping

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers with Sound Damping

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

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64
List price $53.73
-11% $47.98

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

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    Q: Can I upgrade or change the Speakers in 2018 Kia Optima?

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

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    Shop your 2018 Optima
    Why Use a Vehicle Fit Guide?
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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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