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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Rockford Fosgate R2-300X4 with NVX 4 Gauge Amp Kit

300W RMS Prime Series Class D 4-Channel Amplifier

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Rockford Fosgate R2-300X4 with NVX 4 Gauge Amp Kit

300W RMS Prime Series Class D 4-Channel 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
• Includes 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

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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

NVX XCW152 + XCA3K + XKIT02 + XAPKO

4000 Watt Peak (2000W RMS) 15" X-Series Dual 2-Ohm SPL Subwoofer + Monoblock Amplifier with LED Remote Bass Knob with 2-Ch Amplifier Wiring Kit w/ RCA with Amp Power Wiring Kit

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NVX XCW152 + XCA3K + XKIT02 + XAPKO

4000 Watt Peak (2000W RMS) 15" X-Series Dual 2-Ohm SPL Subwoofer + Monoblock Amplifier with LED Remote Bass Knob with 2-Ch Amplifier Wiring Kit w/ RCA with Amp Power Wiring Kit

• One 15" XCW152 XC-Series 2000W RMS Subwoofer
• 6000W Peak (3000W RMS) Class D XCA3K Monoblock Korean Amplifier
• XKIT02 Complete 0 AWG Amplifier Wiring Kit
• XAPK0 0 AWG Power Only Wiring Kit
• 1-year Warranty from the Original Purchase Date

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NVX VADM1 with Amplifier Wiring Kit

500W RMS Class D Monoblock Amplifier with Bass Remote

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NVX VADM1 with Amplifier Wiring Kit

500W RMS Class D Monoblock Amplifier with Bass Remote

• 500 Watt True RMS Output
• Marine Certified Monoblock Micro Class D Amplifier
• 180W x 1-Chan. @ 4 ohm
• 320W x 1-Chan. @ 2 ohm
• 500W x 1-Chan. @ 1 ohm
• Extremely Small Footprint
• Includes Amplifier Wiring Kit

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Cerwin Vega B54 with Belva 4 Gauge Amp Kit

1200W 4-Channel Bomber Series Class D Amplifier with 4 Gauge Amp Kit

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Cerwin Vega B54 with Belva 4 Gauge Amp Kit

1200W 4-Channel Bomber Series Class D Amplifier with 4 Gauge Amp Kit

• RMS: 80 Watts x 4 @ 4 ohm, 150 Watts x 4 @ 2 ohm, Bridged: 300 Watts x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Class D IR Chipset with DirectFET Power Mosfet Output
• Wired remote bass level control included
• Ultra Compact High Density Aluminum Alloy Chassis
• Dimensions: 4.02" W x 8.70" L x 1.40" H

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Kenwood KAC-D3104 with Amplifier Wiring Kit

Class D 4-Channel Amplifier (600 Watts Peak Power)

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Kenwood KAC-D3104 with Amplifier Wiring Kit

Class D 4-Channel Amplifier (600 Watts Peak Power)

• 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
• Includes Amplifier Wiring Kit

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NVX NDA6004 with Amp Wiring Kit

1200W Peak (600W RMS) N-Series Class-D 4-Channel Amplifier + NVX XKIT44 4 Gauge 4-Channel Premium Amp Wiring Kit

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NVX NDA6004 with Amp Wiring Kit

1200W Peak (600W RMS) N-Series Class-D 4-Channel Amplifier + NVX XKIT44 4 Gauge 4-Channel Premium Amp Wiring Kit

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes 4 Gauge Amp Wiring Kit

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Diamond Audio MICRO4V2 with NVX 1/0 Gauge Amp Kit

600W Peak Series Class-D 4-Channel Compact Amplifier

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Diamond Audio MICRO4V2 with NVX 1/0 Gauge Amp Kit

600W Peak Series Class-D 4-Channel Compact Amplifier

• 80 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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DS18 ZR1500.1D with NVX 4 Gauge Amp Kit

4500W RMS ZR Series Class-D Monoblock Amplifier

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DS18 ZR1500.1D with NVX 4 Gauge Amp Kit

4500W RMS ZR Series Class-D Monoblock Amplifier

• 550 watts x 1 channel @ 4 ohm
• 950 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 4500 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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Infinity Reference 3004A with NVX 8 Gauge Amp Kit

400W RMS Reference Series Class-H 4-Channel Amplifier

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Infinity Reference 3004A with NVX 8 Gauge Amp Kit

400W RMS Reference Series Class-H 4-Channel 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
• Includes Amplifier Wiring Kit

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NVX 6.5" Pro Midrange Speakers with Installation Kit

Includes NVX 6.5" V-Series Pro Midrange Speakers, Baffle, Premium Sound Damping, Rubber Roller, Installer's Panel Removal Kit

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NVX 6.5" Pro Midrange Speakers with Installation Kit

Includes NVX 6.5" V-Series Pro Midrange Speakers, Baffle, Premium Sound Damping, Rubber Roller, Installer's Panel Removal Kit

•225 watts RMS
•1" Aluminum Dome Bullet Tweeter
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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•225 watts RMS
•1" Aluminum Dome Bullet Tweeter
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

American Bass GODFATHER 11D with NVX 8 Gauge Amp Kit

Godfather Series Class-D Monoblock Amplifier

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American Bass GODFATHER 11D with NVX 8 Gauge Amp Kit

Godfather Series Class-D Monoblock Amplifier

• Adjustable bass boost for customizable sound preferences
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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List price $3159.05

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• Adjustable bass boost for customizable sound preferences
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Diamond Audio HXM800.2D with NVX 4 Gauge Amp Kit

800W RMS Motorsport Series Full-Range Class D 2-Channel Marine Amplifier

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Diamond Audio HXM800.2D with NVX 4 Gauge Amp Kit

800W RMS Motorsport Series Full-Range Class D 2-Channel Marine Amplifier

• 300 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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124

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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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-19% $246.24

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Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

600W 4-Channel Amplifier + NVX 4-Channel L.O.C. + 4 Gauge Amp Kit

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Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

600W 4-Channel Amplifier + NVX 4-Channel L.O.C. + 4 Gauge Amp Kit

• 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 $613.72

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NVX XQA25001 with NVX 1/0 Gauge Amp Kit

2500W RMS XQ-Series SQ Class D Strappable 1-Ohm Stable Monoblock Amplifier with X-Boost

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NVX XQA25001 with NVX 1/0 Gauge Amp Kit

2500W RMS XQ-Series SQ Class D Strappable 1-Ohm Stable Monoblock Amplifier with X-Boost

• 1000 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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List price $1067.98

-53% $499.99

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Rockford Fosgate R2-750X1 with Amplifier Wiring Kit

Rockford Fosgate Prime 750 Watt MonoBlock Amplifier + NVX Premium Complete Amp Kit

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Rockford Fosgate R2-750X1 with Amplifier Wiring Kit

Rockford Fosgate Prime 750 Watt MonoBlock Amplifier + NVX Premium Complete Amp Kit

• 250 Watts RMS x 1 @ 4 ohm
• 500 Watts RMS x 1 @ 2 ohm
• 750 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 500 Watts
• CEA-2006 Compliant • Rollback Protection

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• 250 Watts RMS x 1 @ 4 ohm
• 500 Watts RMS x 1 @ 2 ohm
• 750 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 500 Watts
• CEA-2006 Compliant • Rollback Protection

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Crunch GP-2000.4 with Belva 4 Gauge Amp Kit

Crunch 2000 Watts Ground Pounder Four Channel Car Audio Amplifier

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Crunch GP-2000.4 with Belva 4 Gauge Amp Kit

Crunch 2000 Watts Ground Pounder Four Channel Car Audio Amplifier

• Variable Electronic Crossover
• Class A/B Amplifier
• Switchable Bass Boost
• Includes Belva BAK44 4 Gauge Amp Wiring Kit

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List price $239.98

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• Variable Electronic Crossover
• Class A/B Amplifier
• Switchable Bass Boost
• Includes Belva BAK44 4 Gauge Amp Wiring Kit

Deaf Bonce Apocalypse Atom 900.2 with Belva 4 Gauge Amp Kit

900W RMS Class D Apocalypse Atom Pro Series 2-Channel Car Amplifier

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Deaf Bonce Apocalypse Atom 900.2 with Belva 4 Gauge Amp Kit

900W RMS Class D Apocalypse Atom Pro Series 2-Channel Car Amplifier

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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Cerwin-Vega H800.4D with NVX 4 Gauge Amp Kit

400W Full Range Class D 4 Channel Digital Amplifier

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Cerwin-Vega H800.4D with NVX 4 Gauge Amp Kit

400W Full Range Class D 4 Channel Digital Amplifier

• 125 watts x 4 channel Watts RMS x 1 @ 4 ohm
• 200 watts x 4 channel Watts RMS x 1 @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts Watts
• Multi-Turn On Modes: REM/DC/VOX
• Includes Amplifier Wiring Kit

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List price $587.98

-39% $359.99

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Car Amplifier Packages & Bundles for your 2014 E550

Your Vehicle

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

Shop the Category

Rockford Fosgate R2-300X4 with NVX 4 Gauge Amp Kit

Rockford Fosgate R2-300X4 with NVX 4 Gauge Amp Kit

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

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

NVX XCW152 + XCA3K + XKIT02 + XAPKO

NVX XCW152 + XCA3K + XKIT02 + XAPKO

NVX VADM1 with Amplifier Wiring Kit

NVX VADM1 with Amplifier Wiring Kit

Cerwin Vega B54 with Belva 4 Gauge Amp Kit

Cerwin Vega B54 with Belva 4 Gauge Amp Kit

Kenwood KAC-D3104 with Amplifier Wiring Kit

Kenwood KAC-D3104 with Amplifier Wiring Kit

NVX NDA6004 with Amp Wiring Kit

NVX NDA6004 with Amp Wiring Kit

Diamond Audio MICRO4V2 with NVX 1/0 Gauge Amp Kit

Diamond Audio MICRO4V2 with NVX 1/0 Gauge Amp Kit

DS18 ZR1500.1D with NVX 4 Gauge Amp Kit

DS18 ZR1500.1D with NVX 4 Gauge Amp Kit

Infinity Reference 3004A with NVX 8 Gauge Amp Kit

Infinity Reference 3004A with NVX 8 Gauge Amp Kit

NVX 6.5" Pro Midrange Speakers with Installation Kit

NVX 6.5" Pro Midrange Speakers with Installation Kit

American Bass GODFATHER 11D with NVX 8 Gauge Amp Kit

American Bass GODFATHER 11D with NVX 8 Gauge Amp Kit

Diamond Audio HXM800.2D with NVX 4 Gauge Amp Kit

Diamond Audio HXM800.2D with NVX 4 Gauge Amp Kit

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

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

Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

NVX XQA25001 with NVX 1/0 Gauge Amp Kit

NVX XQA25001 with NVX 1/0 Gauge Amp Kit

Rockford Fosgate R2-750X1 with Amplifier Wiring Kit

Rockford Fosgate R2-750X1 with Amplifier Wiring Kit

Crunch GP-2000.4 with Belva 4 Gauge Amp Kit

Crunch GP-2000.4 with Belva 4 Gauge Amp Kit

Deaf Bonce Apocalypse Atom 900.2 with Belva 4 Gauge Amp Kit

Deaf Bonce Apocalypse Atom 900.2 with Belva 4 Gauge Amp Kit

Cerwin-Vega H800.4D with NVX 4 Gauge Amp Kit

Cerwin-Vega H800.4D with NVX 4 Gauge Amp Kit

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