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2020 Kia Optima

Change vehicle | Remove vehicle

Use our shopping filters to find the right 2/3/4-channel amp to power upgraded speakers properly.

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

Amps for Adding Speakers for 2020 Kia Optima

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
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.
Punch Series (32)
Machete Series (19)
V Series (18)
Power Series (15)
XDM Series (15)
Prime Series (13)
Hydro Series (12)
CVP Series (11)
VXi Series (10)
FRP Series (9)
SXE Series (9)
Gen-X (8)
Ground Pounder Series (7)
Marine V Series (7)
MVi Series (7)
Reference Series (7)
eXcelon Series (6)
KXM Series (6)
M2 Series (6)
Nautic Series (6)
RD Series (6)
SMD Series (6)
BX Series (5)
Club Series (5)
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N Series (5)
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Apocalypse Sport Series (4)
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CRA Series (4)
CX Series (4)
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iON Series (4)
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Stealth Bomber Series (4)
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V-Drive Series (4)
XED Series (4)
ACX Series (3)
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D Series (3)
Diamond Elite Series (3)
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Sinister Series (3)
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X Series (3)
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Altitude Series (2)
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COLOSSUS Mini Series (2)
COLOSSUS Series (2)
Compact Mean Machine Series (2)
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DB Series (2)
DMD Series (2)
DRVN Series (2)
Edge Series (2)
Excelon Motorsports Series (2)
Excelon Reference Series (2)
Formula Series (2)
Godfather Series (2)
Hooligan Series (2)
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LC Series (2)
M5 Series (2)
MDX Series (2)
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MicroV2 Series (2)
N-Series (2)
PowerZone 2 Series (2)
Punch BR Series (2)
PXA Series (2)
QS Series (2)
SAM Series (2)
Signature Series (2)
SPL Show Series (2)
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Stealth Mini Series (2)
VFL Series (2)
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ACM Series (1)
Alpha Series (1)
Atom Series (1)
CVPRO Series (1)
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EV Series (1)
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GT Series (1)
HCCA Series (1)
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Mille Pro Series (1)
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VFL Stealth Series (1)
Warhorse Series (1)
XC-Series (1)
XFL Series (1)
XQ Series (1)
ZXI Series (1)
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Rockford Fosgate Power T1000-4AD

1000W RMS Class AD Power Series 4 Channel Car Amplifier

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Rockford Fosgate Power T1000-4AD

1000W RMS Class AD Power Series 4 Channel Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD 1 ohm Stable 4-Channel Amplifier

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JBL Club A754 (AMPCBA754AM)

400W RMS Club Series Class H Compact 4-Channel Full Range Car Amplifier

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JBL Club A754 (AMPCBA754AM)

400W RMS Club Series Class H Compact 4-Channel Full Range Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class H 2 ohm Stable 4-Channel Amplifier

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DS18 ION1600.4D

4800W Peak (1600W RMS) Class D ION Series 4 Channel Full Range Car Amplifier

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DS18 ION1600.4D

4800W Peak (1600W RMS) Class D ION Series 4 Channel Full Range Car Amplifier

• 240 watts x 4 channel @ 4 ohm
• 400 watts x 4 channel @ 2 ohm
• Bridged: 800 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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MB Quart NA2-320.4 + Belva BAK84 8 Gauge Amp Wiring Kit

320W Max NA2 Series Class-D 4-Channel 2 ohm Stable Amplifier

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MB Quart NA2-320.4 + Belva BAK84 8 Gauge Amp Wiring Kit

320W Max NA2 Series Class-D 4-Channel 2 ohm Stable Amplifier

• 40 watts RMS x 4 @ 4 ohm
• 80 watts RMS x 4 @ 2 ohm
• 320 watts Total Power
• Switchable High-Pass Filters
• 0-12dB Boost
• Aluminum Heatsink
• Dimensions: 3.7" W x 5.51" L x 1.77" H
• Includes Belva BAK84 8 Gauge Amp Wiring Kit

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• 40 watts RMS x 4 @ 4 ohm
• 80 watts RMS x 4 @ 2 ohm
• 320 watts Total Power
• Switchable High-Pass Filters
• 0-12dB Boost
• Aluminum Heatsink
• Dimensions: 3.7" W x 5.51" L x 1.77" H
• Includes Belva BAK84 8 Gauge Amp Wiring Kit

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DS18 SXE-1200.4/RD

1200W Peak (400W RMS) Class AB SXE Series 4 Channel Full Range Car Amplifier

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DS18 SXE-1200.4/RD

1200W Peak (400W RMS) Class AB SXE Series 4 Channel Full Range Car Amplifier

• 60 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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Crunch GP-2000.4

2000W RMS Class AB Ground Pounder Series 4 Channel Car Amplifier

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Crunch GP-2000.4

2000W RMS Class AB Ground Pounder Series 4 Channel Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 500 watts x 2 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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• 250 watts x 4 channel @ 4 ohm
• 500 watts x 2 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Kenwood eXcelon X303-4 (Like New (Open Box))

600W Peak (300W RMS) Class D eXcelon Series 4 Channel Car Amplifier

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Kenwood eXcelon X303-4 (Like New (Open Box))

600W Peak (300W RMS) Class D eXcelon Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $400.00
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• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

MTX Thunder TH400.4 (Open Box, Great)

400W RMS Class D Thunder Series 4 Channel Car Amplifier

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MTX Thunder TH400.4 (Open Box, Great)

400W RMS Class D Thunder Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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List price $479.95
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• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

JBL Club A5055 (AMPCBA5055AM)

780W RMS Class AB/D Club Series Compact 5-Channel Amplifier with Bass Remote

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JBL Club A5055 (AMPCBA5055AM)

780W RMS Class AB/D Club Series Compact 5-Channel Amplifier with Bass Remote

• 50 watts x 4 channel + 320 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• 700 watts x 1 channel @ 1 ohm (subwoofer output)
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 780 watts
• Class AB / D 2 ohm Stable 5-Channel Amplifier

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DS18 FRP-2.4K4/RD

2400W RMS Class D FRP Series 4-Channel Car Amplifier (Red)

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DS18 FRP-2.4K4/RD

2400W RMS Class D FRP Series 4-Channel Car Amplifier (Red)

• 250 watts x 4 channel @ 4 ohm
• 400 watts x 4 channel @ 2 ohm
• 600 watts x 4 channel @ 1 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Bridged: 1000 watts x 2 channel @ 2 ohm
• Total RMS Power: 2400 watts
• Class D 1 ohm Stable 4-Channel Amplifier

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PRV Audio MDX1200.4 2 Ohm

1200W RMS Class D MDX Series 4-Channel Compact Car and Motorsport Amplifier

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PRV Audio MDX1200.4 2 Ohm

1200W RMS Class D MDX Series 4-Channel Compact Car and Motorsport Amplifier

• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $199.89
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• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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JL Audio VX1000/5i

1000W RMS Class D VXi Series 5 Channel Car Amplifier with Built-in DSP

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JL Audio VX1000/5i

1000W RMS Class D VXi Series 5 Channel Car Amplifier with Built-in DSP

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier
• Includes integrated DSP

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Hifonics Brutus BRL1600.4

1600W RMS Class D Brutus BRL Series 4-Channel Car Amplifier

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Hifonics Brutus BRL1600.4

1600W RMS Class D Brutus BRL Series 4-Channel Car Amplifier

• 300 watts x 4 channel @ 4 ohm
• 450 watts x 4 channel @ 2 ohm
• Bridged: 880 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $459.00
-13% $399.00

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• 300 watts x 4 channel @ 4 ohm
• 450 watts x 4 channel @ 2 ohm
• Bridged: 880 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Hifonics ZD-750.4D Zeus Delta

750W Peak Class D Zeus Delta Series 4 Channel Car Amplifier

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Hifonics ZD-750.4D Zeus Delta

750W Peak Class D Zeus Delta Series 4 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 375 watts x 2 channel @ 4 ohm
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $149.99
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• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 375 watts x 2 channel @ 4 ohm
• Class D 2 ohm Stable 4-Channel Amplifier

Sundown Audio SFB200.4D (A-SFBV22004)

800W RMS Class D SFB Series 4 Channel Car Amplifier

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Sundown Audio SFB200.4D (A-SFBV22004)

800W RMS Class D SFB Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• 200 watts x 4 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable 4-Channel Amplifier

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Sundown Audio SFB500.4 (A-SFBV25004)

2000W RMS Class D SFB Series 4-Channel Car Amplifier

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Sundown Audio SFB500.4 (A-SFBV25004)

2000W RMS Class D SFB Series 4-Channel Car Amplifier

• 500 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• 200 watts x 4 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable 4-Channel Amplifier

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NVX XKIT84

$79.99

$55.99

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JL Audio VX600/6i

600W RMS Class D VXi Series 6 Channel Car Amplifier with Built-in DSP

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JL Audio VX600/6i

600W RMS Class D VXi Series 6 Channel Car Amplifier with Built-in DSP

• 75 watts x 6 channel @ 4 ohm
• 100 watts x 6 channel @ 2 ohm
• Bridged: 200 watts x 3 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 6-Channel Amplifier
• Includes integrated DSP

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Orion HCCA1500.4

6000W Peak (1500W RMS) Class AB HCCA Series 4 Channel Car Amplifier

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Orion HCCA1500.4

6000W Peak (1500W RMS) Class AB HCCA Series 4 Channel Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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NVX XKIT44

$119.99

$83.99

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• 250 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Kicker LX500.4 (51LX5004)

1100W Peak (900W RMS) Class D LX Series 4-Channel Full Range Car Amplifier (with Control Center)

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Kicker LX500.4 (51LX5004)

1100W Peak (900W RMS) Class D LX Series 4-Channel Full Range Car Amplifier (with Control Center)

• 125 watts x 4 channel @ 4 ohm
• 225 watts x 4 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Infinity Kappa Perfect 3002A (INFPWSKP3002AAM)

750W Peak (300W RMS) Class D Kappa Series 2 Channel Powersports Amplifier

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Infinity Kappa Perfect 3002A (INFPWSKP3002AAM)

750W Peak (300W RMS) Class D Kappa Series 2 Channel Powersports Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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    FAQ for Multi-channel Amplifiers for Adding Speakers in 2020 Optima

    Q: Can I upgrade or change the Multi-channel Amplifiers for Adding Speakers in 2020 Kia Optima?

    A: Yes this page includes all the best Multi-channel Amplifiers for Adding Speakers that work in your Optima.

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