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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.
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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DS18 H-KO340

2200W RMS Class D Hooligan Series 4-Channel Car Amplifier with Bass Remote

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DS18 H-KO340

2200W RMS Class D Hooligan Series 4-Channel Car Amplifier with Bass Remote

• 300 watts x 4 channel @ 4 ohm
• 550 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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DS18 H-KO10/RD

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

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DS18 H-KO10/RD

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

• 3500 watts x 1 channel @ 4 ohm
• 5800 watts x 1 channel @ 2 ohm
• 10000 watts x 1 channel @ 1 ohm
• Total RMS Power: 10000 watts
• Class D 4 ohm Stable Monoblock Amplifier

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DS18 X1

900W Peak (300W RMS) Class D X Series Monoblock Compact Car Amplifier with Bass Remote

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DS18 X1

900W Peak (300W RMS) Class D X Series Monoblock Compact Car Amplifier with Bass Remote

• 140 watts x 1 channel @ 4 ohm
• 220 watts x 1 channel @ 2 ohm
• 300 watts x 1 channel @ 1 ohm
• Total RMS Power: 300 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DS18 FRP-8K/TI

9000W Peak (8000W RMS) Class D FRP Series Monoblock Amplifier with Bass Remote (Titanium)

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DS18 FRP-8K/TI

9000W Peak (8000W RMS) Class D FRP Series Monoblock Amplifier with Bass Remote (Titanium)

• 2500 watts x 1 channel @ 4 ohm
• 5000 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DS18 Hydro NXL-N2

900W Peak Class D HYDRO Series 2-Channel Ultra-Compact Marine and Powersports Nano Amplifier

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DS18 Hydro NXL-N2

900W Peak Class D HYDRO Series 2-Channel Ultra-Compact Marine and Powersports Nano Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total Peak Power: 900 watts
• IP67 waterproof rating
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total Peak Power: 900 watts
• IP67 waterproof rating
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Limited time!

DS18 FRP-8K/RD

9000W Peak (8000W RMS) Class D FRP Series Monoblock Amplifier with Bass Remote (Red)

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DS18 FRP-8K/RD

9000W Peak (8000W RMS) Class D FRP Series Monoblock Amplifier with Bass Remote (Red)

• 2500 watts x 1 channel @ 4 ohm
• 5000 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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NVX XKIT02

NVX XKIT02

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DS18 H-KO10

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Black)

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DS18 H-KO10

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Black)

• 3500 watts x 1 channel @ 4 ohm
• 5800 watts x 1 channel @ 2 ohm
• 10000 watts x 1 channel @ 1 ohm
• Total RMS Power: 10000 watts
• Class D 4 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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DS18 H-KO340/RD

2200W RMS Class D Hooligan Series 4-Channel Car Amplifier (Red)

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DS18 H-KO340/RD

2200W RMS Class D Hooligan Series 4-Channel Car Amplifier (Red)

• 300 watts x 4 channel @ 4 ohm
• 550 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Save 30% off an NVX XKIT04 Amp Kit at Checkout!
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List price $863.99
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NVX XKIT04

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DS18 Hydro NXL-X1200.8D

2800W Peak Class D HYDRO Series 8-Channel Marine and Powersports Amplifier

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DS18 Hydro NXL-X1200.8D

2800W Peak Class D HYDRO Series 8-Channel Marine and Powersports Amplifier

• 150 watts x 8 channel @ 4 ohm
• 220 watts x 8 channel @ 2 ohm
• Bridged: 450 watts x 4 channel @ 4 ohm
• IPX6 waterproof rating
• Class D 2 ohm Stable 8-Channel-Channel Amplifier

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• 150 watts x 8 channel @ 4 ohm
• 220 watts x 8 channel @ 2 ohm
• Bridged: 450 watts x 4 channel @ 4 ohm
• IPX6 waterproof rating
• Class D 2 ohm Stable 8-Channel-Channel Amplifier

DS18 SXE-4000.4D/RD (Red) with NVX 4 Gauge Amp Kit

4000W Peak (1500W RMS) Class D SXE Series 4-Channel Car Amplifier

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DS18 SXE-4000.4D/RD (Red) with NVX 4 Gauge Amp Kit

4000W Peak (1500W RMS) Class D SXE Series 4-Channel Car Amplifier

• 275 watts x 4 channel @ 4 ohm
• 430 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier (Red)
• Includes Amplifier Wiring Kit

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• 275 watts x 4 channel @ 4 ohm
• 430 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier (Red)
• Includes Amplifier Wiring Kit

DS18 VX2HL

2-Channel High-to-Low Line Output Converter with Speaker Emulator

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DS18 VX2HL

2-Channel High-to-Low Line Output Converter with Speaker Emulator

• 2-Channel line output converter
• Level matching controls
• DC offset auto turn-on (3 volts)
• Built-in speaker emulator

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• 2-Channel line output converter
• Level matching controls
• DC offset auto turn-on (3 volts)
• Built-in speaker emulator

DS18 Hydro NXL-N1

1050W Peak Class D HYDRO Series Ultra Compact Monoblock Marine and Powersports Amplifier

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DS18 Hydro NXL-N1

1050W Peak Class D HYDRO Series Ultra Compact Monoblock Marine and Powersports Amplifier

• 140 watts x 1 channel @ 4 ohm
• 230 watts x 1 channel @ 2 ohm
• 350 watts x 1 channel @ 1 ohm
• Total Peak Power: 1050 watts
• IP67 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier

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$335.95

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• 140 watts x 1 channel @ 4 ohm
• 230 watts x 1 channel @ 2 ohm
• 350 watts x 1 channel @ 1 ohm
• Total Peak Power: 1050 watts
• IP67 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier

DS18 SXE-1200.4/RD (Red) with Belva 4 Gauge Amp Kit

1200W Peak (400W RMS) Class AB SXE Series 4-channel Car Amplifier

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DS18 SXE-1200.4/RD (Red) with Belva 4 Gauge Amp Kit

1200W Peak (400W RMS) Class AB SXE Series 4-channel Car Amplifier

• 60 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier (Red)
• Includes Amplifier Wiring Kit

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• 60 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier (Red)
• Includes Amplifier Wiring Kit

DS18 SXE-3000.4D/RD with Amplifier Wiring Kit

1000W RMS SXE Series Class-D 4-Channel Amplifier

SXE-3000.4D/RD, BAK44 big
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DS18 SXE-3000.4D/RD with Amplifier Wiring Kit

1000W RMS SXE Series Class-D 4-Channel Amplifier

• 200 watts x 4 channel @ 4 ohm
• 320 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 200 watts x 4 channel @ 4 ohm
• 320 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 ION1600.4D with NVX 4 Gauge Amp Kit

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

ION16004D_XKIT44 big
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DS18 ION1600.4D with NVX 4 Gauge Amp Kit

4800W Peak (1600W RMS) Class D ION Series 4 Channel 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-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 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-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 SXE-3000.4D/BK (Black) with Belva 4 Gauge Amp Kit

3000W Peak (1000W RMS) Class D SXE Series 4-Channel Car Amplifier

SXE30004DBK_BAK44 big
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DS18 SXE-3000.4D/BK (Black) with Belva 4 Gauge Amp Kit

3000W Peak (1000W RMS) Class D SXE Series 4-Channel Car Amplifier

• 200 watts x 4 channel @ 4 ohm
• 320 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1,000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier (Black)
• Includes Amplifier Wiring Kit

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• 200 watts x 4 channel @ 4 ohm
• 320 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1,000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier (Black)
• Includes Amplifier Wiring Kit

DS18 SXE-1200.4/BK (Black) with Belva 4 Gauge Amp Kit

1200W Peak (400W RMS) Class AB SXE Series 4-channel Car Amplifier

SXE12004BK_BAK44 big
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DS18 SXE-1200.4/BK (Black) with Belva 4 Gauge Amp Kit

1200W Peak (400W RMS) Class AB SXE Series 4-channel 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-Channel Amplifier (Black)
• Includes Amplifier Wiring Kit

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• 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-Channel Amplifier (Black)
• Includes Amplifier Wiring Kit

DS18 SXE-2000.4D/RD (Red) with Belva 4 Gauge Amp Kit

2000W Peak (640W RMS) Class D SXE Series 4-Channel Car Amplifier

SXE20004DRD_BAK44 big
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DS18 SXE-2000.4D/RD (Red) with Belva 4 Gauge Amp Kit

2000W Peak (640W RMS) Class D SXE Series 4-Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 3 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier (Red)
• Includes Amplifier Wiring Kit

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• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 3 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier (Red)
• Includes Amplifier Wiring Kit

DS18 G4000.5D with NVX 4 Gauge Amp Kit

4000W Peak (1480W RMS) Class D Gen-X Series 5-Channel Amplifier with Bass Remote and Input Selector

G40005D_XKIT46 big
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DS18 G4000.5D with NVX 4 Gauge Amp Kit

4000W Peak (1480W RMS) Class D Gen-X Series 5-Channel Amplifier with Bass Remote and Input Selector

• 130 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 220 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 420 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1480 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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-15% $486.94

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• 130 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 220 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 420 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1480 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 SXE-2500.1D/RD (Red) with Belva 4 Gauge Amp Kit

2500W Peak (800W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote

SXE25001DRD_BAK42 big
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DS18 SXE-2500.1D/RD (Red) with Belva 4 Gauge Amp Kit

2500W Peak (800W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote

• 300 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable Monoblock Amplifier (Red)
• Includes Amplifier Wiring Kit

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• 300 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable Monoblock Amplifier (Red)
• Includes Amplifier Wiring Kit

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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
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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