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.

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.

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.

Up to 249.99 watts (22)

250–499.99 watts (82)

500–999.99 watts (138)

1,000–1,499.99 watts (61)

1,500 watts or more (65)

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.

Up to 499.99 watts (21)

500–999.99 watts (41)

1,000–1,999.99 watts (74)

2,000–2,999.99 watts (42)

3,000 watts or more (32)

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.

Yes (199)

No (125)

Optional (81)

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.

Speaker Level Inputs

Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.

Yes (224)

No (74)

Optional (70)

Yes - with included adapter (20)

Maximum Input Gauge Size

This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.

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JVC KS-DR2001D with NVX 8 Gauge Amp Kit

300W RMS KS Series Class-D Marine/Powersports Monoblock Amplifier

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JVC KS-DR2001D with NVX 8 Gauge Amp Kit

300W RMS KS Series Class-D Marine/Powersports Monoblock Amplifier

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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List price $454.99

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Diamond Audio MICRO1V2 with NVX 8 Gauge Amp Kit

500W RMS Micro Series Class-D Monoblock Amplifier

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Diamond Audio MICRO1V2 with NVX 8 Gauge Amp Kit

500W RMS Micro Series Class-D Monoblock Amplifier

• 175 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 175 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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Sound Extreme by ECOXGEAR SEI-AMPEV30041 with NVX 8 Gauge Amp Kit

300W RMS EV Series Class-D 4-Channel Amplifier

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Sound Extreme by ECOXGEAR SEI-AMPEV30041 with NVX 8 Gauge Amp Kit

300W RMS EV Series Class-D 4-Channel Amplifier

• 74 watts x 4 channel @ 4 ohm
• Bridged: 150 watts x 2 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 4 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 74 watts x 4 channel @ 4 ohm
• Bridged: 150 watts x 2 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 4 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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Rockford Fosgate Punch P300X1 with Amplifier Wiring Kit

300W RMS Punch Series Monoblock Class AB Car Power Amplifier

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Rockford Fosgate Punch P300X1 with Amplifier Wiring Kit

300W RMS Punch Series Monoblock Class AB Car Power Amplifier

• RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• Total RMS Power: 300W
• Built-in NOMAD Circuit Protects Amplifier
• Tuned Bass EQ: 0 to +18 dB
• Cast Aluminum Heatsink with Dynamic Thermal Management
• Dimensions: 9-7/8"L x 7-3/4"W x 2-3/8"H

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2 Pairs Kicker Speakers (DSC650, DSC6930) + NVX NDA6004 w/ Free Amp Install Kit

Kicker DSC650 6.5" and DSC6930 6x9" DS Series Speakers with NVX NDA6004 4-Channel Amplifier, 8-Gauge Wiring Kit, and Can Insulator Koozie

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2 Pairs Kicker Speakers (DSC650, DSC6930) + NVX NDA6004 w/ Free Amp Install Kit

Kicker DSC650 6.5" and DSC6930 6x9" DS Series Speakers with NVX NDA6004 4-Channel Amplifier, 8-Gauge Wiring Kit, and Can Insulator Koozie

Kicker DSC650 480W Peak 6.5-Inch DS Series 2-Way 4-Ohm Coaxial Speakers
DSC6930 720W Peak 6x9-Inch 3-Way Coaxial Speakers with Integrated Midrange
NVX NDA6004 1200W Peak N-Series Class-D 4-Channel Amplifier
XKIT84 8 Gauge 100-Percent OFC Complete 4-Channel Amplifier Wiring Kit
Sonic Electronix KOOZIE Premium Polyurethane Foam Can Insulator Sleeve

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Kicker DSC650 480W Peak 6.5-Inch DS Series 2-Way 4-Ohm Coaxial Speakers
DSC6930 720W Peak 6x9-Inch 3-Way Coaxial Speakers with Integrated Midrange
NVX NDA6004 1200W Peak N-Series Class-D 4-Channel Amplifier
XKIT84 8 Gauge 100-Percent OFC Complete 4-Channel Amplifier Wiring Kit
Sonic Electronix KOOZIE Premium Polyurethane Foam Can Insulator Sleeve

Stinger SPX700X4 with Belva 8 Gauge Amp Kit

700W RMS Class-D 4 ohm 4-Channel Micro Powersports Amplifier with Remote Level Control

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Stinger SPX700X4 with Belva 8 Gauge Amp Kit

700W RMS Class-D 4 ohm 4-Channel Micro Powersports Amplifier with Remote Level Control

• 125 Watts RMS x 4 @ 4 ohm
• 175 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 700 Watts
• CEA-2006 Compliant
• 0 to 12 dB Bass Boost
• Aluminum Heatsink
• For Powersports Applications
• Includes Amplifier Wiring Kit

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DS18 NVY-IPX7.4 with NVX 8 Gauge Amp Kit

1440W Peak (700W RMS) Class D 4-Channel IP67 Waterproof Marine and Powersports Amplifier with Input Selector

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DS18 NVY-IPX7.4 with NVX 8 Gauge Amp Kit

1440W Peak (700W RMS) Class D 4-Channel IP67 Waterproof Marine and Powersports Amplifier with Input Selector

• 120 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• IP67 waterproof rating, with UV, salt and fog protection
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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Fusion SG-DA51600 with NVX 1/0 Gauge Amp Kit

1600W Peak (850W RMS) Signature Series Class-D 5-Channel Marine Amplifier with Bass Remote

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Fusion SG-DA51600 with NVX 1/0 Gauge Amp Kit

1600W Peak (850W RMS) Signature Series Class-D 5-Channel Marine Amplifier with Bass Remote

• 80 watts x 4 channel + 250 watts x 1 channel @ 4 ohm
• 130 watts x 4 channel + 330 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 2 ohm
• Total RMS Power: 850 watts
• Class D 2 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

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Infinity DSP4425 (INFDSP4425AM) with NVX 8 Gauge Amp Kit

200W Peak (140W RMS) DSP Series Class-AB 4-Channel Amplifier with Digital Signal Processing

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Infinity DSP4425 (INFDSP4425AM) with NVX 8 Gauge Amp Kit

200W Peak (140W RMS) DSP Series Class-AB 4-Channel Amplifier with Digital Signal Processing

• 25 watts x 4 channel @ 4 ohm
• 35 watts x 2 channel @ 2 ohm
• Total RMS Power: 140 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 25 watts x 4 channel @ 4 ohm
• 35 watts x 2 channel @ 2 ohm
• Total RMS Power: 140 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

Deaf Bonce Apocalypse ASA 2500.2 with NVX 1/0 Gauge Amp Kit

2500W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

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Deaf Bonce Apocalypse ASA 2500.2 with NVX 1/0 Gauge Amp Kit

2500W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

• 990 watts x 2 channel @ 4 ohm
• 1630 watts x 2 channel @ 2 ohm
• 2500 watts x 2 channel @ 1 ohm
• Bridged: 3260 watts x 1 channel @ 4 ohm
• Bridged: 5000 watts @ 2 ohm
• Total RMS Power: 2500 watts
• Includes Amplifier Wiring Kit
• Class D 1 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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$775.06

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Diamond Audio DMD500.1D with DMD124 Sub

500W RMS DMD Series Monoblock Class-D Amplifier + DMD Series 12 inch 4Ω DVC Sub

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Diamond Audio DMD500.1D with DMD124 Sub

500W RMS DMD Series Monoblock Class-D Amplifier + DMD Series 12 inch 4Ω DVC Sub

• 340 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes 12 inch Subwoofer

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• 340 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes 12 inch Subwoofer

Diamond Audio DMD500.1D with DMD104 sub

500W RMS DMD Series Monoblock Class-D Amplifier + DMD Series 10" Subwoofer 4Ω DVC

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Diamond Audio DMD500.1D with DMD104 sub

500W RMS DMD Series Monoblock Class-D Amplifier + DMD Series 10" Subwoofer 4Ω DVC

• 340 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes 10 inch Subwoofer

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• 340 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes 10 inch Subwoofer

Deaf Bonce MFA 2.520 with Belva 4 Gauge Amp Kit

1500W RMS Class D Machete Series 2-Channel Full Range Car Amplifier

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Deaf Bonce MFA 2.520 with Belva 4 Gauge Amp Kit

1500W RMS Class D Machete Series 2-Channel Full Range Car Amplifier

• 520 watts x 2 channel @ 4 ohm
• 750 watts x 2 channel @ 2 ohm
• Bridged: 1500 watts x 1 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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171

List price $299.89

-12% $264.39

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• 520 watts x 2 channel @ 4 ohm
• 750 watts x 2 channel @ 2 ohm
• Bridged: 1500 watts x 1 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Deaf Bonce MFA 1.1000 with Belva 4 Gauge Amp Kit

1000W RMS Class D Machete Series Monoblock Subwoofer Amplifier with Bass Remote

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Deaf Bonce MFA 1.1000 with Belva 4 Gauge Amp Kit

1000W RMS Class D Machete Series Monoblock Subwoofer Amplifier with Bass Remote

• 430 watts x 1 channel @ 4 ohm
• 710 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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169

List price $229.89

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• 430 watts x 1 channel @ 4 ohm
• 710 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

DS18 SXE-2000.4D/BK (Black) with Belva 4 Gauge Amp Kit

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

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DS18 SXE-2000.4D/BK (Black) 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 (Black)
• Includes Amplifier Wiring Kit

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MB Quart FA2-1000.1 with Amplifier Wiring Kit

1000W RMS Formula Series Class-D Monoblock Car Amplifier

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MB Quart FA2-1000.1 with Amplifier Wiring Kit

1000W RMS Formula Series Class-D Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Class D Stable Monoblock 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

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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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Cerwin Vega CVP800.2D + NVX XLCA2 Line-Output-Converter + Amp Kit

CVP Series 2-Channel Class-D Amplifier + NVX LOC with XBOOST Technology

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Cerwin Vega CVP800.2D + NVX XLCA2 Line-Output-Converter + Amp Kit

CVP Series 2-Channel Class-D Amplifier + NVX LOC with XBOOST Technology

• CVP Series 2-Channel Amplifier
• 85W x 2 @ 2Ω / 60W x 2 @ 4Ω
• Class-D Circuitry
• 2-Ohm Stereo, 4-Ohm Bridged Full Range Operation
• Direct Short, Thermal, & Overload Circuits Protect Amplifier
• 200mV-6V High Level or Low Level RCA Input

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List price $311.97

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Hifonics HCM-800.4D with Belva 4 Gauge Amp Kit

800W Peak Colossus Mini Series Class-D 4-Channel Amplifier with Bass Remote

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Hifonics HCM-800.4D with Belva 4 Gauge Amp Kit

800W Peak Colossus Mini Series Class-D 4-Channel Amplifier with Bass Remote

• 4 x 100 @ 4 ohm
• 4 x 200 @ 2 ohm
• Bridged: 2 x 400 @ 4 ohm
• Total Peak Power: 800W
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 4 x 100 @ 4 ohm
• 4 x 200 @ 2 ohm
• Bridged: 2 x 400 @ 4 ohm
• Total Peak Power: 800W
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

JBL Apex PA454 with Belva 8 Gauge Amp Kit

180W RMS Apex Series Class-D Compact 4-Channel Powersports Amplifier

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JBL Apex PA454 with Belva 8 Gauge Amp Kit

180W RMS Apex Series Class-D Compact 4-Channel Powersports Amplifier

• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 4 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 4 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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Car Amplifier Packages & Bundles

Shop the Category

JVC KS-DR2001D with NVX 8 Gauge Amp Kit

JVC KS-DR2001D with NVX 8 Gauge Amp Kit

Diamond Audio MICRO1V2 with NVX 8 Gauge Amp Kit

Diamond Audio MICRO1V2 with NVX 8 Gauge Amp Kit

Sound Extreme by ECOXGEAR SEI-AMPEV30041 with NVX 8 Gauge Amp Kit

Sound Extreme by ECOXGEAR SEI-AMPEV30041 with NVX 8 Gauge Amp Kit

Rockford Fosgate Punch P300X1 with Amplifier Wiring Kit

Rockford Fosgate Punch P300X1 with Amplifier Wiring Kit

2 Pairs Kicker Speakers (DSC650, DSC6930) + NVX NDA6004 w/ Free Amp Install Kit

2 Pairs Kicker Speakers (DSC650, DSC6930) + NVX NDA6004 w/ Free Amp Install Kit

Stinger SPX700X4 with Belva 8 Gauge Amp Kit

Stinger SPX700X4 with Belva 8 Gauge Amp Kit

DS18 NVY-IPX7.4 with NVX 8 Gauge Amp Kit

DS18 NVY-IPX7.4 with NVX 8 Gauge Amp Kit

Fusion SG-DA51600 with NVX 1/0 Gauge Amp Kit

Fusion SG-DA51600 with NVX 1/0 Gauge Amp Kit

Infinity DSP4425 (INFDSP4425AM) with NVX 8 Gauge Amp Kit

Infinity DSP4425 (INFDSP4425AM) with NVX 8 Gauge Amp Kit

Deaf Bonce Apocalypse ASA 2500.2 with NVX 1/0 Gauge Amp Kit

Deaf Bonce Apocalypse ASA 2500.2 with NVX 1/0 Gauge Amp Kit

Diamond Audio DMD500.1D with DMD124 Sub

Diamond Audio DMD500.1D with DMD124 Sub

Diamond Audio DMD500.1D with DMD104 sub

Diamond Audio DMD500.1D with DMD104 sub

Deaf Bonce MFA 2.520 with Belva 4 Gauge Amp Kit

Deaf Bonce MFA 2.520 with Belva 4 Gauge Amp Kit

Deaf Bonce MFA 1.1000 with Belva 4 Gauge Amp Kit

Deaf Bonce MFA 1.1000 with Belva 4 Gauge Amp Kit

DS18 SXE-2000.4D/BK (Black) with Belva 4 Gauge Amp Kit

DS18 SXE-2000.4D/BK (Black) with Belva 4 Gauge Amp Kit

MB Quart FA2-1000.1 with Amplifier Wiring Kit

MB Quart FA2-1000.1 with Amplifier Wiring Kit

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

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

Cerwin Vega CVP800.2D + NVX XLCA2 Line-Output-Converter + Amp Kit

Cerwin Vega CVP800.2D + NVX XLCA2 Line-Output-Converter + Amp Kit

Hifonics HCM-800.4D with Belva 4 Gauge Amp Kit

Hifonics HCM-800.4D with Belva 4 Gauge Amp Kit

JBL Apex PA454 with Belva 8 Gauge Amp Kit

JBL Apex PA454 with Belva 8 Gauge Amp Kit

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