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 (137)

1,000–1,499.99 watts (61)

1,500 watts or more (66)

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 (19)

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 (198)

No (123)

Optional (79)

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 (223)

No (73)

Optional (67)

Yes - with included adapter (19)

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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2024 A4

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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

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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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Hifonics HAC-1500.1D with Belva 1/0 Gauge Amp Kit

1500W Peak Colossus Pro Series Class-D Monoblock Amplifier with Bass Remote

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Hifonics HAC-1500.1D with Belva 1/0 Gauge Amp Kit

1500W Peak Colossus Pro Series Class-D Monoblock Amplifier with Bass Remote

• 1 x 375 @ 4 ohm
• 1 x 750 @ 2 ohm
• 1 x 1500 @ 1 ohm
• Total Peak Power: 1 x 1500
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 1 x 375 @ 4 ohm
• 1 x 750 @ 2 ohm
• 1 x 1500 @ 1 ohm
• Total Peak Power: 1 x 1500
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

NVX VAD10001 v2 Amp, XKIT42 2-Channel Amplifier Wiring Kit

2000W Peak (1000W RMS) Class D Monoblock Car/Marine/Powersports Amplifier and Full Spec 4 Gauge 100% OFC 2-Channel Amplifier Wiring Kit

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NVX VAD10001 v2 Amp, XKIT42 2-Channel Amplifier Wiring Kit

2000W Peak (1000W RMS) Class D Monoblock Car/Marine/Powersports Amplifier and Full Spec 4 Gauge 100% OFC 2-Channel Amplifier Wiring Kit

NVX VAD10001 v2 2000W Peak Class D Monoblock Amplifier
Marine Certified for Car, Marine, and Powersports Use
Includes Wired Bass Remote for Precision Control
XKIT42 Full Spec 4 Gauge 100% OFC Wiring Kit
Complete 2-Channel Installation Solution with RCA Cables

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NVX VAD10001 v2 2000W Peak Class D Monoblock Amplifier
Marine Certified for Car, Marine, and Powersports Use
Includes Wired Bass Remote for Precision Control
XKIT42 Full Spec 4 Gauge 100% OFC Wiring Kit
Complete 2-Channel Installation Solution with RCA Cables

Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

Two Compact Full-Range Monoblock Amplifiers 60 watts RMS x 1 (each)

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Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

Two Compact Full-Range Monoblock Amplifiers 60 watts RMS x 1 (each)

• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB
• Includes NVX XKIT82 8 Gauge Amp Wiring Kit

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• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB
• Includes NVX XKIT82 8 Gauge Amp Wiring Kit

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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Sundown Audio SAV312D4 + NVX XCA3K

1 pair of 3000W Peak (1500W RMS) 12" SA Series Dual 4-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

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Sundown Audio SAV312D4 + NVX XCA3K

1 pair of 3000W Peak (1500W RMS) 12" SA Series Dual 4-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 4 ohm
• Competition-grade Paper cone
• Durable Foam surround
• Mount depth: 8.4"
• Sensitivity: 84.05 dB

• Includes 1 pair of Subwoofer with amplifier

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18-23 Wrangler JL / 20-23 Gladiator JT Kicker Plug & Play 5-Channel Amp & Sub

1000W Peak (500W RMS) Loaded Dual 12" Sealed Truck Enclosure

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18-23 Wrangler JL / 20-23 Gladiator JT Kicker Plug & Play 5-Channel Amp & Sub

1000W Peak (500W RMS) Loaded Dual 12" Sealed Truck Enclosure

• Sealed truck enclosure with 2 12" CompRT Series Subwoofer • 250-500 watts RMS Power Rating • Final Impedance: 2-ohm • Dimensions: 27 1/2" L x 6 1/8" H x 14 5/8" W

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• Sealed truck enclosure with 2 12" CompRT Series Subwoofer • 250-500 watts RMS Power Rating • Final Impedance: 2-ohm • Dimensions: 27 1/2" L x 6 1/8" H x 14 5/8" W

Kicker Subwoofer & Amplifier (49L7TDF82, CXA400.1) w/ Free Amp Install Kit

700W Peak Loaded Single 8 inch Sealed Subwoofer Enclosure with 400W RMS Monoblock Amplifier, 8 Gauge Wiring Kit, Bass Remote, and NVX Koozie

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Kicker Subwoofer & Amplifier (49L7TDF82, CXA400.1) w/ Free Amp Install Kit

700W Peak Loaded Single 8 inch Sealed Subwoofer Enclosure with 400W RMS Monoblock Amplifier, 8 Gauge Wiring Kit, Bass Remote, and NVX Koozie

Kicker 49L7TDF82 700W Peak Loaded Single 8 inch Sealed Subwoofer Enclosure
400W RMS Class D CX-Series Monoblock Car Amplifier
Wired Bass Remote Controller for CX Series Amplifiers
Belva BAK82 8 Gauge Premium CCA Complete 2-Channel Amplifier Wiring Kit with RCA
NVX KOOZIE Premium Polyurethane Foam Can Insulator Sleeve

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Kicker 49L7TDF82 700W Peak Loaded Single 8 inch Sealed Subwoofer Enclosure
400W RMS Class D CX-Series Monoblock Car Amplifier
Wired Bass Remote Controller for CX Series Amplifiers
Belva BAK82 8 Gauge Premium CCA Complete 2-Channel Amplifier Wiring Kit with RCA
NVX KOOZIE Premium Polyurethane Foam Can Insulator Sleeve

Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

1 pair of 7000W Peak (3500W RMS) 12" Nightshade NS Series Dual 2-ohm Car Subwoofer with with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

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Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

1 pair of 7000W Peak (3500W RMS) 12" Nightshade NS Series Dual 2-ohm Car Subwoofer with with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

• Peak Power: 7000 watts
• Impedance: RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.15 dB

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• Peak Power: 7000 watts
• Impedance: RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.15 dB

Rockford Fosgate Punch PM600X4 + NVX XKIT44

600W 4-Channel Punch Series Class AB Marine Amplifier + NVX 4 Gauge 4-Channel Amp Kit

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Rockford Fosgate Punch PM600X4 + NVX XKIT44

600W 4-Channel Punch Series Class AB Marine Amplifier + NVX 4 Gauge 4-Channel Amp Kit

• RMS: 75W x 4 @ 4 ohm, 150W x 4 @ 2 ohm, Bridged 300W x 2 @ 4ohm
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

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-12% $705.45

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Rockford Fosgate Power T600-4 + NVX XKIT44 4 Gauge Amp Wiring Kit

600W Power Series Compact 4-Channel Class AB Car Amplifier

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Rockford Fosgate Power T600-4 + NVX XKIT44 4 Gauge Amp Wiring Kit

600W Power Series Compact 4-Channel Class AB Car Amplifier

• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 300W x 2 chan. @ 4 ohm
• 600W x 4-Chan. Max
• NOMAD protection circuitry: thermal, overload or short protection
• MOSFET power supply
• Includes NVX XKIT44 4 Gauge Amp Wiring Kit

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Rockford Fosgate Punch P600X4 with Amplifier Wiring Kit

600W Punch Series 4-Channel Stereo Class AB Car Power Amplifier

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Rockford Fosgate Punch P600X4 with Amplifier Wiring Kit

600W Punch Series 4-Channel Stereo Class AB Car Power Amplifier

• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

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List price $665.98

-25% $498.60

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Hertz SP 4.500 with NVX 8 Gauge Amp Kit

600W RMS SPL Show Series Class-D 4-3- 2-Channel Amplifier

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Hertz SP 4.500 with NVX 8 Gauge Amp Kit

600W RMS SPL Show Series Class-D 4-3- 2-Channel Amplifier

• 90 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier
• Includes Amplifier Wiring Kit

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• 90 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier
• Includes Amplifier Wiring Kit

Kicker CXA1200.1 (46CXA12001T) with NVX 4 Gauge Amp Kit

1200W RMS Class-D CX-Series Monoblock Car Amplifier

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Kicker CXA1200.1 (46CXA12001T) with NVX 4 Gauge Amp Kit

1200W RMS Class-D CX-Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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139

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-17% $482.87

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Kenwood KAC-D3104 + NVX XFLOC4 Line-Output-Converter + Amp Kit

Class D 4-Channel Amplifier (600 Watts Peak Power) + NVX 4-Channel L.O.C. + 8 Gauge Amp Kit

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Kenwood KAC-D3104 + NVX XFLOC4 Line-Output-Converter + Amp Kit

Class D 4-Channel Amplifier (600 Watts Peak Power) + NVX 4-Channel L.O.C. + 8 Gauge Amp Kit

• 4 ohm: 50 watts x 4 chan.
• 2 ohm: 75 watts x 4 chan.
• Total Peak Power: 600 Watts
• Speaker Level Input
• Signal Sensing Turn-On
• Variable Low Pass/High Pass Filter
• Variable Bass Boost: 0 to +18 dB bass boost at 40 Hz

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Belva BXD4K with Amplifier Wiring Kit

4000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote

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Belva BXD4K with Amplifier Wiring Kit

4000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote

• 100 Watts Max x 1 @ 4 ohm
• 2000 Watts Max x 1 @ 2 ohm
• 4000 Watts Max x 1 @ 1 ohm
• Total Max Power: 4000 watts Watts
• 96dB Signal to noise ratio
• Includes Amplifier Wiring Kit

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List price $289.94

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• 100 Watts Max x 1 @ 4 ohm
• 2000 Watts Max x 1 @ 2 ohm
• 4000 Watts Max x 1 @ 1 ohm
• Total Max Power: 4000 watts Watts
• 96dB Signal to noise ratio
• Includes Amplifier Wiring Kit

Rockford Fosgate Power T2500-1bdCP + NVX XKIT02 1/0 Gauge Amp Wiring Kit

2500W RMS Constant Power Series Class BD Monoblock Amplifier

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Rockford Fosgate Power T2500-1bdCP + NVX XKIT02 1/0 Gauge Amp Wiring Kit

2500W RMS Constant Power Series Class BD Monoblock Amplifier

• RMS: 1500W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 2500W x 1 @ 1 ohm
• Total RMS Power: 2500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 21-7/8"L x 8-3/16"W x 2-3/16"H
• Includes NVX XKIT02 1/0 Gauge Amp Wiring Kit

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Cerwin-Vega XED4004D with Belva 4 Gauge Amp Kit

400W Peak (360W RMS) XED Series Class-D 4-Channel Amplifier

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Cerwin-Vega XED4004D with Belva 4 Gauge Amp Kit

400W Peak (360W RMS) XED Series Class-D 4-Channel Amplifier

• 60 watts x 4 channel @ 4 ohm
• 90 watts x 4 channel @ 2 ohm
• Bridged: 170 watts x 2 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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List price $283.98

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Deaf Bonce MFA 2.220 with Belva 4 Gauge Amp Kit

700W RMS Class D Machete Series 2-Channel Full Range Car Amplifier

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Deaf Bonce MFA 2.220 with Belva 4 Gauge Amp Kit

700W RMS Class D Machete Series 2-Channel Full Range Car Amplifier

• 220 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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• 220 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Hifonics HCM-400.4D with Belva 4 Gauge Amp Kit

400W Peak Colossus Mini Series Class-D 4-Channel Amplifier with Bass Remote

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Hifonics HCM-400.4D with Belva 4 Gauge Amp Kit

400W Peak Colossus Mini Series Class-D 4-Channel Amplifier with Bass Remote

• 4 x 50 @ 4 ohm
• 4 x 100 @ 2 ohm
• Bridged: 2 x 200 @ 4 ohm
• Total Peak Power: 400W
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 4 x 50 @ 4 ohm
• 4 x 100 @ 2 ohm
• Bridged: 2 x 200 @ 4 ohm
• Total Peak Power: 400W
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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Car Amplifier Packages & Bundles for your 2024 A4

Your Vehicle

Product results for your vehicle – confirm details to verify fitment.

Shop the Category

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

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

Hifonics HAC-1500.1D with Belva 1/0 Gauge Amp Kit

Hifonics HAC-1500.1D with Belva 1/0 Gauge Amp Kit

NVX VAD10001 v2 Amp, XKIT42 2-Channel Amplifier Wiring Kit

NVX VAD10001 v2 Amp, XKIT42 2-Channel Amplifier Wiring Kit

Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

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

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

Sundown Audio SAV312D4 + NVX XCA3K

Sundown Audio SAV312D4 + NVX XCA3K

18-23 Wrangler JL / 20-23 Gladiator JT Kicker Plug & Play 5-Channel Amp & Sub

18-23 Wrangler JL / 20-23 Gladiator JT Kicker Plug & Play 5-Channel Amp & Sub

Kicker Subwoofer & Amplifier (49L7TDF82, CXA400.1) w/ Free Amp Install Kit

Kicker Subwoofer & Amplifier (49L7TDF82, CXA400.1) w/ Free Amp Install Kit

Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

Rockford Fosgate Punch PM600X4 + NVX XKIT44

Rockford Fosgate Punch PM600X4 + NVX XKIT44

Rockford Fosgate Power T600-4 + NVX XKIT44 4 Gauge Amp Wiring Kit

Rockford Fosgate Power T600-4 + NVX XKIT44 4 Gauge Amp Wiring Kit

Rockford Fosgate Punch P600X4 with Amplifier Wiring Kit

Rockford Fosgate Punch P600X4 with Amplifier Wiring Kit

Hertz SP 4.500 with NVX 8 Gauge Amp Kit

Hertz SP 4.500 with NVX 8 Gauge Amp Kit

Kicker CXA1200.1 (46CXA12001T) with NVX 4 Gauge Amp Kit

Kicker CXA1200.1 (46CXA12001T) with NVX 4 Gauge Amp Kit

Kenwood KAC-D3104 + NVX XFLOC4 Line-Output-Converter + Amp Kit

Kenwood KAC-D3104 + NVX XFLOC4 Line-Output-Converter + Amp Kit

Belva BXD4K with Amplifier Wiring Kit

Belva BXD4K with Amplifier Wiring Kit

Rockford Fosgate Power T2500-1bdCP + NVX XKIT02 1/0 Gauge Amp Wiring Kit

Rockford Fosgate Power T2500-1bdCP + NVX XKIT02 1/0 Gauge Amp Wiring Kit

Cerwin-Vega XED4004D with Belva 4 Gauge Amp Kit

Cerwin-Vega XED4004D with Belva 4 Gauge Amp Kit

Deaf Bonce MFA 2.220 with Belva 4 Gauge Amp Kit

Deaf Bonce MFA 2.220 with Belva 4 Gauge Amp Kit

Hifonics HCM-400.4D with Belva 4 Gauge Amp Kit

Hifonics HCM-400.4D with Belva 4 Gauge Amp Kit

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