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Best Buy customers often prefer the following products when searching for powerful amplifiers.

If you're looking for a way to power your home theater or stereo system, you've got a few options. You can use a dedicated amplifier, which is designed specifically for this purpose. Or you can use an integrated amplifier, which combines a receiver with a number of speakers. Browse the top-ranked list of powerful amplifiers below along with associated reviews and opinions.

Main Results
  1. Pioneer - 4-Channel Class D Amplifier - Black - Front_Zoom
    Top comment

    "Powerful...Powerful and Clear, using with a DSP and upgraded speaker wire= awesome"

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    Product Description

    The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.
    See all Multi-Channel Amps
    Top comment

    "Powerful...Powerful and Clear, using with a DSP and upgraded speaker wire= awesome"

    See all customer reviews

    Product Description

    The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  2. Hifonics - ALPHA 2500W Class D Digital Multichannel Amplifier with Variable Crossovers - Silver/Black - Front_Zoom

    Product Description

    Experience clear and powerful sound with this Hifonics ALPHA Super D-Class hybrid amplifier. An electronic crossover allows for total control over the sound sent to each individual speaker, while bass boost and bass equalizer provide a strong yet clear low end. This Hifonics ALPHA Super D-Class hybrid amplifier boasts five channels for versatility.
    See all Multi-Channel Amps

    Product Description

    Experience clear and powerful sound with this Hifonics ALPHA Super D-Class hybrid amplifier. An electronic crossover allows for total control over the sound sent to each individual speaker, while bass boost and bass equalizer provide a strong yet clear low end. This Hifonics ALPHA Super D-Class hybrid amplifier boasts five channels for versatility.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  3. AudioControl - 1300W 5-Channel Class D Amplifier with AccuBASS - Black - Front_Zoom

    Product Description

    Experience powerful sound from your car’s audio system with this 1300W 5-Channel Class D Amplifier with AccuBASS by AudioControl. The LC-5.1300 features a high-current design and comes equipped with intuitive setup controls that allow for a wide variety of installation possibilities. This 5-channel amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps

    Product Description

    Experience powerful sound from your car’s audio system with this 1300W 5-Channel Class D Amplifier with AccuBASS by AudioControl. The LC-5.1300 features a high-current design and comes equipped with intuitive setup controls that allow for a wide variety of installation possibilities. This 5-channel amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  4. AudioControl - 1200W 6-Channel Class D Amplifier - Black - Front_Zoom
    Top comment

    "Excellent amplifier and vey user friendly. Very powerful as well. "

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    Product Description

    Experience powerful sound from your car’s audio system with this 1200W 6-Channel Class D Amplifier by AudioControl. The LC-6.1200 features a high-current design and comes equipped with intuitive setup controls that allow for a wide variety of installation possibilities. This 6-channel amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps
    Top comment

    "Excellent amplifier and vey user friendly. Very powerful as well. "

    See all customer reviews

    Product Description

    Experience powerful sound from your car’s audio system with this 1200W 6-Channel Class D Amplifier by AudioControl. The LC-6.1200 features a high-current design and comes equipped with intuitive setup controls that allow for a wide variety of installation possibilities. This 6-channel amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  5. AudioControl - 800W 4-Channel Class D Amplifier - Black - Front_Zoom

    Product Description

    Experience powerful sound from your car’s audio system with this 800W 4-Channel Class D Amplifier by AudioControl. The LC-4.800 features a high-current design and comes equipped with intuitive setup controls that allow for a wide variety of installation possibilities. This 4-channel amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps

    Product Description

    Experience powerful sound from your car’s audio system with this 800W 4-Channel Class D Amplifier by AudioControl. The LC-4.800 features a high-current design and comes equipped with intuitive setup controls that allow for a wide variety of installation possibilities. This 4-channel amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  6. AudioControl - 300W 4-Channel Class D Micro Amplifier - Black - Front_Zoom
    Top comment

    "Compact, powerful, clean. Works like a charm, easy to install....Great product I can’t wait to get it hooked up nice and powerful"

    See all customer reviews

    Product Description

    Enjoy powerful audio in your vehicle with this 300W 4-Channel Class D Micro Amplifier by AudioControl. The ACM-4.300 features a compact chassis that allows installation in confined spaces and a selectable high-pass crossover to get the most robust sound for your car’s audio system. This micro amplifier also features a reversible cover plate for flexibility in any installation scenario.
    See all Multi-Channel Amps
    Top comment

    "Compact, powerful, clean. Works like a charm, easy to install....Great product I can’t wait to get it hooked up nice and powerful"

    See all customer reviews

    Product Description

    Enjoy powerful audio in your vehicle with this 300W 4-Channel Class D Micro Amplifier by AudioControl. The ACM-4.300 features a compact chassis that allows installation in confined spaces and a selectable high-pass crossover to get the most robust sound for your car’s audio system. This micro amplifier also features a reversible cover plate for flexibility in any installation scenario.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  7. Pioneer - 1-Channel Class D Mono Amplifier - Black - Front_Zoom
    Top comment

    "POWERFUL!!!...Nice Amplifier. This amp is powerful for its size. I would recommend this amp to all. ...Powerful digital amplifier great open box deal for 177.00"

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    Product Description

    The GM-DX871 mono subwoofer amplifier can deliver up to 800 watts RMS to your subwoofer, for powerful bass that will give every song a strong and heavy beat. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a small chassis that fits in a lot of out of the way spaces.
    See all Multi-Channel Amps
    Top comment

    "POWERFUL!!!...Nice Amplifier. This amp is powerful for its size. I would recommend this amp to all. ...Powerful digital amplifier great open box deal for 177.00"

    See all customer reviews

    Product Description

    The GM-DX871 mono subwoofer amplifier can deliver up to 800 watts RMS to your subwoofer, for powerful bass that will give every song a strong and heavy beat. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a small chassis that fits in a lot of out of the way spaces.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  8. Alpine - Power Pack 180W Class D Bridgeable Multichannel Amplifier with High-Pass Filter - Black - Front_Zoom
    Top comment

    "Good basic amplifier...This amplifier has the power and sound I was looking for, easily concealed yet powerful!...This is a great small amplifier. I installed it behind the car console. It is powerful for a medium size car, it moves the speakers easily and the sound is bright and clear. "

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    Product Description

    Give your car stereo system a power boost with this Alpine Power Pack KTP-445U 180W Class D bridgeable 4-channel amplifier that features a 12dB/Oct high-pass filter for powerful sound.
    See all Multi-Channel Amps
    Top comment

    "Good basic amplifier...This amplifier has the power and sound I was looking for, easily concealed yet powerful!...This is a great small amplifier. I installed it behind the car console. It is powerful for a medium size car, it moves the speakers easily and the sound is bright and clear. "

    See all customer reviews

    Product Description

    Give your car stereo system a power boost with this Alpine Power Pack KTP-445U 180W Class D bridgeable 4-channel amplifier that features a 12dB/Oct high-pass filter for powerful sound.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  9. AudioControl - 1200W 6-Channel Class D Matrix DSP Amplifier - Black - Front_Zoom

    Product Description

    Experience powerful sound from your car’s audio system with this 1200W 6-Channel Class D Matrix DSP Amplifier by AudioControl. The D-6.1200 is a high-power amplifier equipped with a built-in digital signal processor (DSP) that provides complete control of the amplifier's tuning features. This matrix DSP amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps

    Product Description

    Experience powerful sound from your car’s audio system with this 1200W 6-Channel Class D Matrix DSP Amplifier by AudioControl. The D-6.1200 is a high-power amplifier equipped with a built-in digital signal processor (DSP) that provides complete control of the amplifier's tuning features. This matrix DSP amplifier also features AccuBASS technology so you can turn up the volume without losing bass.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  10. Hifonics - Thor 600W Class D Digital Multichannel MOSFET Amplifier with Variable Low-Pass Crossover - Black - Front_Zoom

    Product Description

    Power your onboard sound system with this marine-grade compact five-channel Hifonics THOR amplifier. It has water-resistant construction and corrosion-resistant, quick-disconnect wiring for easy seasonal installation and removal and a Class D amplifier for efficient low-heat operation. This Hifonics THOR amplifier has a low-noise preamplifier for clear, powerful sound on your vessel.
    See all Multi-Channel Amps

    Product Description

    Power your onboard sound system with this marine-grade compact five-channel Hifonics THOR amplifier. It has water-resistant construction and corrosion-resistant, quick-disconnect wiring for easy seasonal installation and removal and a Class D amplifier for efficient low-heat operation. This Hifonics THOR amplifier has a low-noise preamplifier for clear, powerful sound on your vessel.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
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