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1979 GMC K2500 Pickup

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Use our shopping filters to find the right 2/3/4-channel amp to power upgraded speakers properly.

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Amps for Adding Speakers for 1979 GMC K2500 Pickup

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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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.
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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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Infinity Kappa Perfect 5004A (INFPWSKP5004AAM)

1250W Peak (500W RMS) Class D Kappa Series 4 Channel Powersports Amplifier

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Infinity Kappa Perfect 5004A (INFPWSKP5004AAM)

1250W Peak (500W RMS) Class D Kappa Series 4 Channel Powersports Amplifier

• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Deaf Bonce Apocalypse ASA 2000.2

2000W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

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Deaf Bonce Apocalypse ASA 2000.2

2000W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

• 940 watts x 2 channel @ 4 ohm
• 1490 watts x 2 channel @ 2 ohm
• 2000 watts x 2 channel @ 1 ohm
• Bridged: 2980 watts x 1 channel @ 4 ohm
• Bridged: 4000 watts @ 2 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

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NVX XKIT02

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JL Audio VX400/4i

400W RMS Class D 4 Channel Car Amplifier with Built-in DSP

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JL Audio VX400/4i

400W RMS Class D 4 Channel Car Amplifier with Built-in DSP

• 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 D 2 ohm Stable 4-Channel Amplifier
• Includes integrated DSP

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NVX VAD8402 (Open Box, Great)

840W RMS VAD Series Class-D 2-Channel Full-Range Car/Marine/Powersports Amplifier

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NVX VAD8402 (Open Box, Great)

840W RMS VAD Series Class-D 2-Channel Full-Range Car/Marine/Powersports Amplifier

• RMS: 300 x 2 @ 4 ohm, 420W x 2 @ 2 ohm, Bridged 840W x 1 @ 4 ohm
• Total RMS Power: 840W
• CEA-2006 Compliant
• Efficient Full Range Class D Design
• Dimensions: 10.1"W x 5.4"D x 2.0H

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Hertz ML Power 5

950W RMS Class D Mille Power Series 5-Channel Full Range Car Amplifier

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Hertz ML Power 5

950W RMS Class D Mille Power Series 5-Channel Full Range Car Amplifier

• 70 watts x 4 channel + 380 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 550 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 380 watts x 1 channel @ 4 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 550 watts x 1 channel @ 2 ohm
• Total RMS Power: 950 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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Hertz Venezia V5

1700W RMS Class D Venezia Series 5-Channel Marine Amplifier

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Hertz Venezia V5

1700W RMS Class D Venezia Series 5-Channel Marine Amplifier

• 130 watts x 4 channel + 490 watts x 1 channel @ 4 ohm
• 220 watts x 4 channel + 820 watts x 1 channel @ 2 ohm
• Bridged: 440 watts x 2 channel @ 4 ohm + 490 watts x 1 channel @ 4 ohm
• Bridged: 440 watts x 2 channel @ 4 ohm + 820 watts x 1 channel @ 2 ohm
• Total RMS Power: 1700 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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• 130 watts x 4 channel + 490 watts x 1 channel @ 4 ohm
• 220 watts x 4 channel + 820 watts x 1 channel @ 2 ohm
• Bridged: 440 watts x 2 channel @ 4 ohm + 490 watts x 1 channel @ 4 ohm
• Bridged: 440 watts x 2 channel @ 4 ohm + 820 watts x 1 channel @ 2 ohm
• Total RMS Power: 1700 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Hertz Venezia V4C

760W RMS Class D Venezia Series 4-Channel Compact Marine Amplifier

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Hertz Venezia V4C

760W RMS Class D Venezia Series 4-Channel Compact Marine Amplifier

• 110 watts x 4 channel @ 4 ohm
• 190 watts x 4 channel + 380 watts x 1 channel @ 2 ohm
• Bridged: 380 watts x 2 channel @ 4 ohm
• Total RMS Power: 760 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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NVX MVPA6 (Open Box, Great)

Marine-V Series 900W 6-Channel Class D Compact Marine/Powersports/Motorcycle Amplifier

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NVX MVPA6 (Open Box, Great)

Marine-V Series 900W 6-Channel Class D Compact Marine/Powersports/Motorcycle Amplifier

• 100 Watts RMS x 6 @ 4 ohm
• 150 Watts RMS x 6 @ 2 ohm
• CEA-2006 Compliant
• Weatherproof Amplifier
• Micro Amp
• 12.9"W x 4.4"L x 1.7"H

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• 100 Watts RMS x 6 @ 4 ohm
• 150 Watts RMS x 6 @ 2 ohm
• CEA-2006 Compliant
• Weatherproof Amplifier
• Micro Amp
• 12.9"W x 4.4"L x 1.7"H

DS18 G700.2D

700W Peak (360W RMS) Class D Gen-X Series 2 Channel Full Range Car Amplifier

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DS18 G700.2D

700W Peak (360W RMS) Class D Gen-X Series 2 Channel Full Range Car Amplifier

• 100 watts x 2 channel @ 4 ohm
• 180 watts x 2 channel @ 2 ohm
• Bridged: 360 watts x 1 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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Cerwin-Vega S91100.5D

1100W RMS Class D Stroker Series 5-Channel Car Amplifier with Bass Remote

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Cerwin-Vega S91100.5D

1100W RMS Class D Stroker Series 5-Channel Car Amplifier with Bass Remote

• 90 watts x 4 channel + 150 watts x 2 channel @ 4 ohm
• 150 watts x 4 channel + 250 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class 2 ohm Stable 5-Channel Amplifier

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MB Quart NA3-600.6

600W Peak Class D Nautic Series 6 Channel Marine and Powersports Amplifier

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MB Quart NA3-600.6

600W Peak Class D Nautic Series 6 Channel Marine and Powersports Amplifier

• 50 Watts Peak x 6
• 100 Watts Peak x 6 @ 2 ohm
• Total Peak Power: 600 Watts
• CEA-2006 Compliant
• NMMA Certified
• Audiophile Marine Standard
• LED system protection circuit diagnostics
• Class SQ

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• 50 Watts Peak x 6
• 100 Watts Peak x 6 @ 2 ohm
• Total Peak Power: 600 Watts
• CEA-2006 Compliant
• NMMA Certified
• Audiophile Marine Standard
• LED system protection circuit diagnostics
• Class SQ

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DS18 ZR600.4D

2400W Peak (960W RMS) Class D ZR Series 4-Channel Car Amplifier

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DS18 ZR600.4D

2400W Peak (960W RMS) Class D ZR Series 4-Channel Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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NVX XKIT44

NVX XKIT44

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Massive Audio GT5X

760W RMS Class D GT Series 5 Channel Car Amplifier with Bass Remote

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Massive Audio GT5X

760W RMS Class D GT Series 5 Channel Car Amplifier with Bass Remote

• 75 watts x 4 channel + 190 watts x 1 channel @ 4 ohm
• 115 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 230 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 760 watts
• Class D 1 ohm Stable 5-Channel Amplifier

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American Bass VFL Stealth 500.4 (VFLSTEALTH-500.4)

250W RMS Class AB VFL Stealth Series 4-Channel Car Amplifier

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American Bass VFL Stealth 500.4 (VFLSTEALTH-500.4)

250W RMS Class AB VFL Stealth Series 4-Channel Car Amplifier

• Total RMS Power: 250 watts
• Class A/B Stable 4-Channel Amplifier

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NVX XKIT44

NVX XKIT44

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Kenwood KAC-M8005

800W RMS Class D M Series 5-Channel Marine Amplifier

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Kenwood KAC-M8005

800W RMS Class D M Series 5-Channel Marine Amplifier

• 50 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• 700 watts x 1 channel @ 1 ohm (subwoofer output)
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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List price $520.00
$499.00

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• 50 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• 700 watts x 1 channel @ 1 ohm (subwoofer output)
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Wet Sounds Sinister-SDX2

1250W RMS Class D Sinister Series 2 Channel Marine Amplifier

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Wet Sounds Sinister-SDX2

1250W RMS Class D Sinister Series 2 Channel Marine Amplifier

• 400 watts x 2 channel @ 4 ohm
• 620 watts x 2 channel @ 2 ohm
• Bridged: 1250 watts x 1 channel @ 4 ohm
• Total RMS Power: 1250 watts
• Class D 2 ohm Stable 2-Channel Marine Amplifier

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Diamond Audio HX1200.5

1400W RMS Class D HEX Series 5-Channel Full Range Car Amplifier (with Bass Remote)

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Diamond Audio HX1200.5

1400W RMS Class D HEX Series 5-Channel Full Range Car Amplifier (with Bass Remote)

• 100 watts x 4 channel + 480 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 800 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 1400 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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Crunch SA-1100.2

1100W Peak (70W RMS) Class AB Smash Series 2 Channel Car Amplifier

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Crunch SA-1100.2

1100W Peak (70W RMS) Class AB Smash Series 2 Channel Car Amplifier

• 30 watts x 2 channel @ 4 ohm
• 35 watts x 2 channel @ 2 ohm
• Bridged: 60 watts x 1 channel @ 4 ohm
• Total RMS Power: 70 watts
• Class A/B 2 ohm Stable 2-Channel Amplifier

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MTX WET75.4 + Belva BAK44

400W Wet Series 4-Channel All Weather Class A/B Marine/Powersports Compact Amplifier + Belva 4 Gauge Amp Wiring kit

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MTX WET75.4 + Belva BAK44

400W Wet Series 4-Channel All Weather Class A/B Marine/Powersports Compact Amplifier + Belva 4 Gauge Amp Wiring kit

• RMS Power: 75W x 4 @ 4 ohm, 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Plastic Cover Over Control-Adjustments
• Dimensions: 12.15"W x 6.40"L x 2.25"H

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• RMS Power: 75W x 4 @ 4 ohm, 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Plastic Cover Over Control-Adjustments
• Dimensions: 12.15"W x 6.40"L x 2.25"H

DS18 SXE-3000.4D/RD with Amplifier Wiring Kit

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

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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

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    FAQ for Multi-channel Amplifiers for Adding Speakers in 1979 K2500 Pickup

    Q: Can I upgrade or change the Multi-channel Amplifiers for Adding Speakers in 1979 GMC K2500 Pickup?

    A: Yes this page includes all the best Multi-channel Amplifiers for Adding Speakers that work in your K2500 Pickup.

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