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  1. Home
  2. Car Audio & Electronics
  3. Car Amplifiers
  4. Car Amplifier Packages & Bundles

Car Amplifier Packages & Bundles for your 1978 504 close

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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.
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.
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.
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.
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.
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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Hertz HMP 1D with NVX 8 Gauge Amp Kit

300W RMS HMP Series Monoblock Class D 2-Ohm Marine/Powersports/Motorcycle Amplifier

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Hertz HMP 1D with NVX 8 Gauge Amp Kit

300W RMS HMP Series Monoblock Class D 2-Ohm Marine/Powersports/Motorcycle Amplifier

• 180 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Water Jet Tested
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 180 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Water Jet Tested
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

JBL Apex PA1502 with NVX 8 Gauge Amp Kit

300W RMS Apex Series Class-D Compact 2-Channel Powersports Amplifier

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JBL Apex PA1502 with NVX 8 Gauge Amp Kit

300W RMS Apex Series Class-D Compact 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
• Includes Amplifier Wiring Kit

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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 RMS Power: 300 watts
• Class D 2 ohm Stable 2-Channel Amplifier
• Includes Amplifier Wiring Kit

NVX - Worth the Envy - Direct to Consumer Car Audio

Kenwood eXcelon XM502-1 with NVX 8 Gauge Amp Kit

500W RMS XR Series Class-D Monoblock Marine Amplifier

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Kenwood eXcelon XM502-1 with NVX 8 Gauge Amp Kit

500W RMS XR Series Class-D Monoblock Marine Amplifier

• 300 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 Amplifier Wiring Kit

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• 300 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 Amplifier Wiring Kit

Limited time!

NVX VAD8402 v2 Amp, XLCA2 Converter + XKIT42 Amp Kit

840W RMS VAD Series 2-Channel Amplifier with 2-Channel Line Out Converter and Full Spec 4 Gauge OFC Amplifier Wiring Kit

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NVX VAD8402 v2 Amp, XLCA2 Converter + XKIT42 Amp Kit

840W RMS VAD Series 2-Channel Amplifier with 2-Channel Line Out Converter and Full Spec 4 Gauge OFC Amplifier Wiring Kit

  • NVX 840W RMS VAD Series Class-D 2-Channel Full-Range Car/Marine/Powersports Amplifier
  • 2-Channel Line Out Converter with xBOOST Technology and Remote Bass Knob
  • Full Spec 4 Gauge 100% OFC Oxygen Free Copper Wiring Kit
  • High-quality RCA cables supporting power levels up to 1500 Watts
  • Comprehensive bundle provides all necessary hardware for 2-Channel amp installation
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  • NVX 840W RMS VAD Series Class-D 2-Channel Full-Range Car/Marine/Powersports Amplifier
  • 2-Channel Line Out Converter with xBOOST Technology and Remote Bass Knob
  • Full Spec 4 Gauge 100% OFC Oxygen Free Copper Wiring Kit
  • High-quality RCA cables supporting power levels up to 1500 Watts
  • Comprehensive bundle provides all necessary hardware for 2-Channel amp installation

DS18 G1800.1D + Belva BAK02 1/0 Gauge Amp Wiring Kit

1800W Peak (600W RMS) GEN-X Series Class D Monoblock Amplifier

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DS18 G1800.1D + Belva BAK02 1/0 Gauge Amp Wiring Kit

1800W Peak (600W RMS) GEN-X Series Class D Monoblock Amplifier

• 250 watts x 1 channel @ 4 ohm
• 450 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 1800 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 250 watts x 1 channel @ 4 ohm
• 450 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 1800 watts
• Class D 1 ohm Stable Monoblock Amplifier

MB Quart FA2-900.5 with Amplifier Wiring Kit

900W RMS Formula Series Class-D 5-Channel Car Amplifier

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MB Quart FA2-900.5 with Amplifier Wiring Kit

900W RMS Formula Series Class-D 5-Channel Car Amplifier

• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 5-Channel Amplifier • Includes Amplifier Wiring Kit

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• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 5-Channel Amplifier • Includes Amplifier Wiring Kit

Kenwood eXcelon XM502-1 with Amplifier Wiring Kit

1000W Peak (500W RMS) Class D Monoblock Car Audio Amplifier

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Kenwood eXcelon XM502-1 with Amplifier Wiring Kit

1000W Peak (500W RMS) Class D Monoblock Car Audio Amplifier

• 300 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

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• 300 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

AudioControl ACX-300.4 with Belva 8 Gauge Amp Kit

300 Watt Marine 4-Channel Amplifier

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AudioControl ACX-300.4 with Belva 8 Gauge Amp Kit

300 Watt Marine 4-Channel Amplifier

• 300 Watts @ 2 Ohm
• 175 Watts @ 4 Ohm
• 4/3/2 Channel Amplifier
• Includes Amplifier Wiring Kit

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• 300 Watts @ 2 Ohm
• 175 Watts @ 4 Ohm
• 4/3/2 Channel Amplifier
• Includes Amplifier Wiring Kit

Cerwin-Vega VCU82 with NVX 8 Gauge Amp Kit

Vega Series 2-Channel Class D 600W Full-Range Amplifier

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Cerwin-Vega VCU82 with NVX 8 Gauge Amp Kit

Vega Series 2-Channel Class D 600W Full-Range Amplifier

• 2-Channel Class D 600W Full-Range Amplifier
• RMS Power: 300W x 2 @ 2 Ohm
• RMS Power: 200W x 2 @ 4 Ohm
• RMS Power Bridged: 600W x 1 @ 4 Ohm
• Marine Grade Certified
• Remote Level Control Included
• Includes Amplifier Wiring Kit

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• 2-Channel Class D 600W Full-Range Amplifier
• RMS Power: 300W x 2 @ 2 Ohm
• RMS Power: 200W x 2 @ 4 Ohm
• RMS Power Bridged: 600W x 1 @ 4 Ohm
• Marine Grade Certified
• Remote Level Control Included
• Includes Amplifier Wiring Kit

Diamond Audio DES1000.1D with NVX 4 Gauge Amp Kit

1000W RMS DES Series Class-D 1-Channel Full Range Amplifier

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Diamond Audio DES1000.1D with NVX 4 Gauge Amp Kit

1000W RMS DES Series Class-D 1-Channel Full Range Amplifier

• 650 watts x 1 channel @ 4 ohm
• 850 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Latest High-Efficiency Full Range Digital Topology
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 650 watts x 1 channel @ 4 ohm
• 850 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Latest High-Efficiency Full Range Digital Topology
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Cerwin-Vega XED3001D with NVX 4 Gauge Amp Kit

400W Peak (300W RMS) XED Series Class-D Mono Channel Amplifier

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Cerwin-Vega XED3001D with NVX 4 Gauge Amp Kit

400W Peak (300W RMS) XED Series Class-D Mono Channel Amplifier

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D Stable Monoblock Amplifier
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

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• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D Stable Monoblock Amplifier
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

Hifonics ZD-1750.5D with Amplifier Wiring Kit

1350W RMS Zeus Delta Series Class-D 5-Channel Car Amplifier

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Hifonics ZD-1750.5D with Amplifier Wiring Kit

1350W RMS Zeus Delta Series Class-D 5-Channel Car Amplifier

• 100 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 225 watts x 4 channel + 450 watts x 1 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm + 450 watts x 1 channel @ 2 ohm
• Total RMS Power: 1350 watts
• Class D 1 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 100 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 225 watts x 4 channel + 450 watts x 1 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm + 450 watts x 1 channel @ 2 ohm
• Total RMS Power: 1350 watts
• Class D 1 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

AudioControl ACX-300.1 with Belva 8 Gauge Amp Kit

ACX Series All-Weather 300W Monoblock Audio Marine Amplifier

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AudioControl ACX-300.1 with Belva 8 Gauge Amp Kit

ACX Series All-Weather 300W Monoblock Audio Marine Amplifier

• 175 Watts RMS x 1 @ 4 ohm
• 300 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 600 Watts
• CEA-2006 Compliant
• AccuBASS®
• Includes Amplifier Wiring Kit

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• 175 Watts RMS x 1 @ 4 ohm
• 300 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 600 Watts
• CEA-2006 Compliant
• AccuBASS®
• Includes Amplifier Wiring Kit

Diamond Audio DMD250.1D with Belva 4 Gauge Amp Kit

250W RMS DMD Series Class-D Monoblock Amplifier

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Diamond Audio DMD250.1D with Belva 4 Gauge Amp Kit

250W RMS DMD Series Class-D Monoblock Amplifier

• 160 watts x 4 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Total RMS Power: 250 watts
• Dampening Factor: > 250
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 160 watts x 4 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Total RMS Power: 250 watts
• Dampening Factor: > 250
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Earthquake MiNi D1000.4 with Belva 8 Gauge Amp Kit

1000W Class D 4-Channel Mini Series Amplifier

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Earthquake MiNi D1000.4 with Belva 8 Gauge Amp Kit

1000W Class D 4-Channel Mini Series Amplifier

• RMS Power: 65W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, Bridged, 190 watts x 2 @ 4 ohm
• Total Peak Power: 1000W
• Variable Bass Boost
• Optical Control Circuitry
• Crossover Frequencies: 40-400Hz
• Includes Amplifier Wiring Kit

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• RMS Power: 65W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, Bridged, 190 watts x 2 @ 4 ohm
• Total Peak Power: 1000W
• Variable Bass Boost
• Optical Control Circuitry
• Crossover Frequencies: 40-400Hz
• Includes Amplifier Wiring Kit

MB Quart RA1-750.1 with Belva 4 Gauge Amp Kit

750W RMS Monoblock Reference Series Full Range Class D Subwoofer Amplifier

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MB Quart RA1-750.1 with Belva 4 Gauge Amp Kit

750W RMS Monoblock Reference Series Full Range Class D Subwoofer Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

DS18 NXL-X900.6D with NVX 4 Gauge Amp Kit

3000W Peak Class D HYDRO Series 6-Channel Marine and Powersports Amplifier

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DS18 NXL-X900.6D with NVX 4 Gauge Amp Kit

3000W Peak Class D HYDRO Series 6-Channel Marine and Powersports Amplifier

• 150 watts x 6 channel @ 4 ohm
• 250 watts x 6 channel @ 2 ohm
• 500 watts x 3 channel @ 1 ohm
• IPX6 waterproof rating
• Class D 2 ohm Stable 6-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 150 watts x 6 channel @ 4 ohm
• 250 watts x 6 channel @ 2 ohm
• 500 watts x 3 channel @ 1 ohm
• IPX6 waterproof rating
• Class D 2 ohm Stable 6-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Diamond Audio DES400.4D with NVX 8 Gauge Amp Kit

680W RMS DES Series 4-Channel Full Range Class D Amplifier

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Diamond Audio DES400.4D with NVX 8 Gauge Amp Kit

680W RMS DES Series 4-Channel Full Range Class D Amplifier

• 100 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 680 watts
• Latest High-Efficiency Full-Range Digital Topology
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 100 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 680 watts
• Latest High-Efficiency Full-Range Digital Topology
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Hertz Venezia V4 with NVX 4 Gauge Amp Kit

1160W RMS Venezia Series Class-D 4-Channel Marine Amplifier

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Hertz Venezia V4 with NVX 4 Gauge Amp Kit

1160W RMS Venezia Series Class-D 4-Channel Marine Amplifier

• 160 watts x 4 channel @ 4 ohm
• 290 watts x 4 channel @ 2 ohm
• Total RMS Power: 1160 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 160 watts x 4 channel @ 4 ohm
• 290 watts x 4 channel @ 2 ohm
• Total RMS Power: 1160 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

DC Audio 1.2k - 1200W Class D Monoblock Amplifier with NVX 4 Gauge Amp Kit

1200W Competition Series Class D 1-Ohm Stable Monoblock Subwoofer Amplifier

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DC Audio 1.2k - 1200W Class D Monoblock Amplifier with NVX 4 Gauge Amp Kit

1200W Competition Series Class D 1-Ohm Stable Monoblock Subwoofer Amplifier

• RMS Power: 350W x 1 @ 4 ohm, 700W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Strappable for Up to 2400W of Power
• Variable Low Pass Filter
• Dimensions: 9.38" W x 16.5" L x 2.35" H
• Includes Amplifier Wiring Kit

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• RMS Power: 350W x 1 @ 4 ohm, 700W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Strappable for Up to 2400W of Power
• Variable Low Pass Filter
• Dimensions: 9.38" W x 16.5" L x 2.35" H
• Includes Amplifier Wiring Kit

NVX - Worth the Envy - Direct to Consumer Car Audio
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    1978 Peugeot 504

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    2019 Harley Davidson FLHT Electra Glide Standard

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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
    • You get the correct accessories the first time

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

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