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2003 Kia Optima

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Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

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

Universal-Fit Audio for 2003 Kia Optima

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

Better sound with your factory radio

Better sound with a factory radio

Love your factory look or can't replace the stereo? We got you covered.

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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.
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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Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
Top-Mount Depth (Mounting Depth)
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
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.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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Kicker CVX124 (50CVX124)

1500W Peak (750W RMS) 12" CompVX Series Dual 4-ohm Car Subwoofer

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Kicker CVX124 (50CVX124)

1500W Peak (750W RMS) 12" CompVX Series Dual 4-ohm Car Subwoofer

• Peak Power: 1500 watts
• RMS Power: 750 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 6-11/16"
• Sensitivity: 87.1 dB

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Sundown Audio M-15 D1 15" (M15D1)

4000W Peak (2000W RMS) 15" M Series Dual 1-ohm Car Subwoofer (SW-M15D1)

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Sundown Audio M-15 D1 15" (M15D1)

4000W Peak (2000W RMS) 15" M Series Dual 1-ohm Car Subwoofer (SW-M15D1)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 12.06"
• Sensitivity: 83.024 dB

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Sundown Audio X-12 v.3 D2 12" (X12V3D2)

5000W Peak (2500W RMS) 12" X Series Dual 2-ohm Car Subwoofer (SW-XV312D2)

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Sundown Audio X-12 v.3 D2 12" (X12V3D2)

5000W Peak (2500W RMS) 12" X Series Dual 2-ohm Car Subwoofer (SW-XV312D2)

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 10.4"
• Sensitivity: 84 dB

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Rockford Fosgate Punch P3 P3D4-15

1200W Peak (600W RMS) 15" Punch Series Dual 4-ohm Car Subwoofer

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Rockford Fosgate Punch P3 P3D4-15

1200W Peak (600W RMS) 15" Punch Series Dual 4-ohm Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Anodized Aluminum Cone
• Santoprene Rubber Surround
• Sensitivity: 86 dB

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Sundown Audio SML-8 D4 8" (SML8D4) (Open Box, Great)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

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Sundown Audio SML-8 D4 8" (SML8D4) (Open Box, Great)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• Pressed Foam surround
• Mount depth: 3.9"
• Sensitivity: 82.5 dB

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• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• Pressed Foam surround
• Mount depth: 3.9"
• Sensitivity: 82.5 dB

Kicker CWQ102 (51CWQ102)

1600W Peak (800W RMS) 10" CompQ Series Dual 2-ohm Subwoofer

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Kicker CWQ102 (51CWQ102)

1600W Peak (800W RMS) 10" CompQ Series Dual 2-ohm Subwoofer

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• SoloKon Polypropylene Cone
• Blue-stitched Santoprene Rubber Surround
• Mount depth: 6-3/8"
• Sensitivity: 84.5 dB

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Massive Audio Hippo H82XR

2000W Peak (1000W RMS) 8" Hippo Series Dual 2-ohm Subwoofer

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Massive Audio Hippo H82XR

2000W Peak (1000W RMS) 8" Hippo Series Dual 2-ohm Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Kevlar fiber reinforced Non-Pressed Paper cone with industrial textured finish
• Tall and narrow Foam surround
• Sensitivity: 84.44 dB

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Kicker CWRT82 (48CWRT82)

600W Peak (300W RMS) 8" CompRT Series Dual 2-ohm Shallow Car Subwoofer

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Kicker CWRT82 (48CWRT82)

600W Peak (300W RMS) 8" CompRT Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 2 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-11/16"
• Sensitivity: 81.8 dB

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Kicker CWRT672 (48CWRT672)

300W Peak (150W RMS) 6.75” CompRT Series Dual 2-ohm Shallow Car Subwoofer

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Kicker CWRT672 (48CWRT672)

300W Peak (150W RMS) 6.75” CompRT Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 2 ohm
• UV-Resistant Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

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Kicker L7X152 (49L7X152)

2000W RMS 15" SoloX Series Dual 2-ohm Subwoofer

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Kicker L7X152 (49L7X152)

2000W RMS 15" SoloX Series Dual 2-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 11-9/16"

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• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 11-9/16"

NVX SMW10D4

700W Peak (350W RMS) 10" S-Series Shallow-Mount Dual 4-ohm Car Subwoofer

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NVX SMW10D4

700W Peak (350W RMS) 10" S-Series Shallow-Mount Dual 4-ohm Car Subwoofer

• Peak Power: 700 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 88 dB

2+ offers available
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Orion HCCA124

10000W Peak (2500W RMS) 12" HCCA Series Dual 4-ohm Competition Car Subwoofer

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Orion HCCA124

10000W Peak (2500W RMS) 12" HCCA Series Dual 4-ohm Competition Car Subwoofer

• Peak Power: 10000 watts
• RMS Power: 2500 watts
• Impedance: Dual 4 ohm
• Moisture and UV-resistant Paper cone
• Nitrile Butadiene Rubber (NBR)-Foam surround
• Mount depth: 10.28"
• Sensitivity: 84 dB

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• Peak Power: 10000 watts
• RMS Power: 2500 watts
• Impedance: Dual 4 ohm
• Moisture and UV-resistant Paper cone
• Nitrile Butadiene Rubber (NBR)-Foam surround
• Mount depth: 10.28"
• Sensitivity: 84 dB

Sundown Audio X-8 v.3 D2 8" (X8V3D2)

800W RMS 8" X Series V3 Dual 2-ohm Car Subwoofer (XV38D2)

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Sundown Audio X-8 v.3 D2 8" (X8V3D2)

800W RMS 8" X Series V3 Dual 2-ohm Car Subwoofer (XV38D2)

• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• FEA optimized spider and surround
• Mount depth: 6.8"
• Sensitivity: 82.1 dB

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• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• FEA optimized spider and surround
• Mount depth: 6.8"
• Sensitivity: 82.1 dB

JL Audio 13TW5v2-4 - Pair

600W RMS 13.5" TW5v2 Series Single 4-ohm Shallow Car Subwoofer

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JL Audio 13TW5v2-4 - Pair

600W RMS 13.5" TW5v2 Series Single 4-ohm Shallow Car Subwoofer

• RMS Power: 600 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Santoprene Rubber Surround
• Mount depth: 2.625"
• Sensitivity: 85.63 dB

Save 15% Off Package Deals at Checkout!
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• RMS Power: 600 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Santoprene Rubber Surround
• Mount depth: 2.625"
• Sensitivity: 85.63 dB

EXCLUSIVE

JL Audio 13W3v3-2

600W RMS 13.5" W3v3 Series Single 2-Ohm Car Subwoofer

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JL Audio 13W3v3-2

600W RMS 13.5" W3v3 Series Single 2-Ohm Car Subwoofer

• Sensitivity: 87.63 dB
• Mounting depth: 7.63"
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor

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• Sensitivity: 87.63 dB
• Mounting depth: 7.63"
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor

Deaf Bonce Apocalypse DB-SA2510 D1

1600W Peak (800W RMS) 10” Apocalypse Series Dual 1-ohm Car Subwoofer

DB-SA2510 D1 big
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Deaf Bonce Apocalypse DB-SA2510 D1

1600W Peak (800W RMS) 10” Apocalypse Series Dual 1-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 1 ohm
• Mount depth: 5.95"
• Sensitivity: 85.20 dB

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$239.90

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Massive Audio GTR84

800W Peak (600W RMS) 8" GTR Series Dual 4-ohm Subwoofer

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Massive Audio GTR84

800W Peak (600W RMS) 8" GTR Series Dual 4-ohm Subwoofer

• Peak Power: 800 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Textured Non-Pressed Pulp with Resin Cone
• High Roll Foam Surround
• Mount depth:
• Sensitivity: 82.5 dB

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List price $179.95
-28% $129.99

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Kicker L7S102 (44L7S102)

1200W Peak (600W RMS) 10” Solo-Baric L7S Series Dual 2-ohm Subwoofer

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Kicker L7S102 (44L7S102)

1200W Peak (600W RMS) 10” Solo-Baric L7S Series Dual 2-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Injection Molded Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 6-1/4"
• Sensitivity: 85.87 dB

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JBL Stage 102 (JBLSUBST102AM)

900W Peak (225W RMS) 10" Stage Series Single 4-ohm Car Subwoofer

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JBL Stage 102 (JBLSUBST102AM)

900W Peak (225W RMS) 10" Stage Series Single 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 225 watts
• Impedance: Single 4 ohm
• Polypropylene Subwoofer Cone material
• Rubber Subwoofer Surround material
• Mount depth: 4.525"
• Sensitivity: 89 dB

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PRV Audio RS65-SUBD4

600W Peak (300W RMS) 6.5" RS Series Dual 4-ohm Car Subwoofer

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PRV Audio RS65-SUBD4

600W Peak (300W RMS) 6.5" RS Series Dual 4-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• High Roll Foam surround
• Mount depth: 3.46"
• Sensitivity: 82 dB

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List price $112.39
-20% $89.91

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• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• High Roll Foam surround
• Mount depth: 3.46"
• Sensitivity: 82 dB

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