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2002 GMC Sierra 2500 HD

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Single, 1-channel monoblock sub amplifiers for when you add a sub

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Amplifiers for Powering a Sub for 2002 GMC Sierra 2500 HD

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.
Power Series (17)
Punch Series (16)
Prime Series (14)
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BX Series (9)
Apocalypse Atom Pro Series (8)
CVP Series (7)
JD Series (7)
RD Series (7)
SALT Series (7)
Brutus BRL Series (6)
Competition Series (6)
CX Series (6)
Godfather Series (6)
Hooligan Series (6)
Reference Series (6)
SIA Series (6)
SMD Series (6)
Stroker Pro Series (6)
V Series (6)
XDM Series (6)
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Alpha Series (1)
AP Series (1)
Colossus Classic Series (1)
COLOSSUS Series (1)
Compact Mean Machine Series (1)
CVPM Series (1)
Discus Series (1)
DPower Series (1)
DRVN Series (1)
DXM Series (1)
EV Series (1)
Excelon Motorsports Series (1)
FX Series (1)
Gen-X (1)
GM Digital Series (1)
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HCP Series (1)
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X Series (1)
XFL Series (1)
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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Hertz HCP 1MDK

1240W Peak (1100W RMS) Class D HCP Series Monoblock Marine Amplifier

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Hertz HCP 1MDK

1240W Peak (1100W RMS) Class D HCP Series Monoblock Marine Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1100 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 600 watts x 1 channel @ 4 ohm
• 1100 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable Monoblock Amplifier

Diamond Audio DXM1200.1D

1200W RMS Class D DXM Series Monoblock Marine and Powersports Amplifier with Bass Remote

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Diamond Audio DXM1200.1D

1200W RMS Class D DXM Series Monoblock Marine and Powersports Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio DMD250.1D

250W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio DMD250.1D

250W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

• 160 watts x 4 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Hertz Venezia V1 24V (Venezia V1)

1260W RMS Class D Venezia Series Monoblock Marine Amplifier

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Hertz Venezia V1 24V (Venezia V1)

1260W RMS Class D Venezia Series Monoblock Marine Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1260 watts x 1 channel @ 2 ohm
• 1260 watts x 1 channel @ 1 ohm
• Total RMS Power: 1260 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DS18 H-KO10/RD

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

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DS18 H-KO10/RD

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

• 3500 watts x 1 channel @ 4 ohm
• 5800 watts x 1 channel @ 2 ohm
• 10000 watts x 1 channel @ 1 ohm
• Total RMS Power: 10000 watts
• Class D 4 ohm Stable Monoblock Amplifier

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DS18 X1

900W Peak (300W RMS) Class D X Series Monoblock Compact Car Amplifier with Bass Remote

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DS18 X1

900W Peak (300W RMS) Class D X Series Monoblock Compact Car Amplifier with Bass Remote

• 140 watts x 1 channel @ 4 ohm
• 220 watts x 1 channel @ 2 ohm
• 300 watts x 1 channel @ 1 ohm
• Total RMS Power: 300 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Diamond Audio DMD500.1D

500W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio DMD500.1D

500W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

• 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

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Belva BXA15001 (Open Box, Great)

1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

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Belva BXA15001 (Open Box, Great)

1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• Total Peak Power: 1500 watts
• Class A/B 2 ohm Stable Monoblock

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List price $149.95
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AudioControl ACX-300.1

300W RMS Class D ACX Series Monoblock Marine and Powersports Amplifier

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AudioControl ACX-300.1

300W RMS Class D ACX Series Monoblock Marine and Powersports Amplifier

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

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

Hertz HMP 1D

300W Peak (250W RMS) Class D HMP Series Monoblock Marine Amplifier with Bass Remote

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Hertz HMP 1D

300W Peak (250W RMS) Class D HMP Series Monoblock Marine Amplifier with Bass Remote

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

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List price $415.00
-8% $379.99

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DS18 H-KO10

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Black)

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DS18 H-KO10

10000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Black)

• 3500 watts x 1 channel @ 4 ohm
• 5800 watts x 1 channel @ 2 ohm
• 10000 watts x 1 channel @ 1 ohm
• Total RMS Power: 10000 watts
• Class D 4 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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Cerwin Vega SRPM750.1DW

750W RMS Class D Stroker RPM Series Monoblock Marine Amplifier with Bass Remote (White)

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Cerwin Vega SRPM750.1DW

750W RMS Class D Stroker RPM Series Monoblock Marine Amplifier with Bass Remote (White)

• @ 4 ohm
• @ 2 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $503.99
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Hertz HMD1

1000W RMS Monoblock Class D Marine Amplifier

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Hertz HMD1

1000W RMS Monoblock Class D Marine Amplifier

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

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List price $1140.00
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Sundown Audio SAM-600D

600W RMS Class D SAM Series Monoblock Marine and Powersports Amplifier

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Sundown Audio SAM-600D

600W RMS Class D SAM Series Monoblock Marine and Powersports Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $359.99
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• 230 watts x 1 channel @ 4 ohm
• 415 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

Kicker 46CXA8001 with Amplifier Wiring Kit

800W RMS CX Series Class-D Monoblock Amplifier

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Kicker 46CXA8001 with Amplifier Wiring Kit

800W RMS CX Series Class-D Monoblock Amplifier

• 300 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 800 Watts RMS x 1 @ 1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• Includes Amplifier Wiring Kit

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• 300 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 800 Watts RMS x 1 @ 1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• Includes Amplifier Wiring Kit

Sundown Audio SAM-1000D

1000W RMS Class D SAM Series Monoblock Marine and Powersport Amplifier

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Sundown Audio SAM-1000D

1000W RMS Class D SAM Series Monoblock Marine and Powersport Amplifier

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

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List price $419.99
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• 400 watts x 1 channel @ 4 ohm
• 700 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio HXM1200.1D

1200W RMS Class D Motorsport Series Monoblock Car, Marine and Powersport Amplifier with Bluetooth

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Diamond Audio HXM1200.1D

1200W RMS Class D Motorsport Series Monoblock Car, Marine and Powersport Amplifier with Bluetooth

• 550 watts x 1 channel @ 4 ohm
• 850 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

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Rockford Fosgate Punch P500X1BD + FREE $50 Gift Card

500W RMS Punch Series Monoblock Class BD Car Power Amplifier

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Rockford Fosgate Punch P500X1BD + FREE $50 Gift Card

500W RMS Punch Series Monoblock Class BD Car Power Amplifier

• RMS: 150W x 1 @ 4 ohm, 300W x 1 @ 2 ohm, 500W x 1 @ 1 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Tuned Bass EQ: 0 to +18 dB
• Super Efficient Class BD Circuitry
• Dimensions: 11"L x 7-3/4"W x 2-3/8"H

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• RMS: 150W x 1 @ 4 ohm, 300W x 1 @ 2 ohm, 500W x 1 @ 1 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Tuned Bass EQ: 0 to +18 dB
• Super Efficient Class BD Circuitry
• Dimensions: 11"L x 7-3/4"W x 2-3/8"H

Cerwin-Vega HRPM350.1D

350W RMS Class D HRPM Series Monoblock Marine Amplifier with Bass Remote

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Cerwin-Vega HRPM350.1D

350W RMS Class D HRPM Series Monoblock Marine Amplifier with Bass Remote

• 120 watts x 1 channel @ 4 ohm
• 220 watts x 1 channel @ 2 ohm
• Total RMS Power: 350 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $395.99
-17% $329.99

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DS18 Hydro NXL-N1

1050W Peak Class D HYDRO Series Ultra Compact Monoblock Marine and Powersports Amplifier

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DS18 Hydro NXL-N1

1050W Peak Class D HYDRO Series Ultra Compact Monoblock Marine and Powersports Amplifier

• 140 watts x 1 channel @ 4 ohm
• 230 watts x 1 channel @ 2 ohm
• 350 watts x 1 channel @ 1 ohm
• Total Peak Power: 1050 watts
• IP67 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier

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Universal Icon Universal – fits most vehicles.

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$335.95

In stock.

Add to Cart

• 140 watts x 1 channel @ 4 ohm
• 230 watts x 1 channel @ 2 ohm
• 350 watts x 1 channel @ 1 ohm
• Total Peak Power: 1050 watts
• IP67 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier

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    FAQ for Monoblock Sub Amplifiers in 2002 Sierra 2500 HD

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2002 GMC Sierra 2500 HD?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your Sierra 2500 HD.

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