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

The best compact amplifiers deliver more power than you'd think possible, and put it to good use. They can be used in a pinch for home theater systems, but they're really designed for desktop speakers, headphones, or bookshelf speakers. Browse the top-ranked list of compact amplifiers below along with associated reviews and opinions.

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

    "Perfect. Small and compact. Works as intended to do so....It’s compact powerful and does everything it suppose to."

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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

    "Perfect. Small and compact. Works as intended to do so....It’s compact powerful and does everything it suppose to."

    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
  2. KICKER - CX 360W Class AB Bridgeable Multichannel Amplifier with Variable Crossovers - Black - Angle_Zoom
    Top comment

    "Great Amplifier...work amazing and doesn't get too hot! Amazing amplifier!...Kicker amplifier...I have used these amplifiers for years, they are reliable and have a small footprint, that can be custom fit almost anywhere. "

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    Product Description

    Boost the sound of vehicle door speakers with this KICKER four-channel amplifier. The variable bass boost lets you easily tune the system as desired, and Fail-safe Integration Technology-PLUS provides clear sounds with its noise rejection. This KICKER four-channel amplifier features high-efficiency heat sinks, preventing overheating during long periods of use.
    See all Multi-Channel Amps
    Top comment

    "Great Amplifier...work amazing and doesn't get too hot! Amazing amplifier!...Kicker amplifier...I have used these amplifiers for years, they are reliable and have a small footprint, that can be custom fit almost anywhere. "

    See all customer reviews

    Product Description

    Boost the sound of vehicle door speakers with this KICKER four-channel amplifier. The variable bass boost lets you easily tune the system as desired, and Fail-safe Integration Technology-PLUS provides clear sounds with its noise rejection. This KICKER four-channel amplifier features high-efficiency heat sinks, preventing overheating during long periods of use.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  3. Kenwood - Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Black - Front_Zoom
    Top comment

    "Good power source for compact subwoofer...Good driving amplifier for low to mid powered subwoofer...Amplifier...Bought to replace a similar item , very sleek and compact."

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    Product Description

    Provide sufficient power for a subwoofer with this Kenwood Class D amplifier. It provides 500W per channel at 2 ohms for creating thumping bass, and the compact size makes it suitable for an automobile installation. This Kenwood Class D amplifier has aluminum screw mounting hardware for securing it to a flat surface.
    See all Mono Subwoofer Amps
    Top comment

    "Good power source for compact subwoofer...Good driving amplifier for low to mid powered subwoofer...Amplifier...Bought to replace a similar item , very sleek and compact."

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    Product Description

    Provide sufficient power for a subwoofer with this Kenwood Class D amplifier. It provides 500W per channel at 2 ohms for creating thumping bass, and the compact size makes it suitable for an automobile installation. This Kenwood Class D amplifier has aluminum screw mounting hardware for securing it to a flat surface.
    See all Mono Subwoofer Amps
    See all Mono Subwoofer Amps
  4. Sonance - DSP 2-150 MKIII AMP - 300W 2.0-Ch. DSP Power Amplifier (Each) - Black - Front_Zoom

    Product Description

    Create an exciting party atmosphere with this Sonance DSP amplifier. The advanced room correction technology offers hundreds of EQ presets that let you customize audio setup effortlessly via simple pull-down menus, and reliable digital-to-analog conversion provides high-resolution sound from a variety of sources. This Sonance DSP amplifier has a compact design that offers convenient portability.
    See all Power Amplifiers

    Product Description

    Create an exciting party atmosphere with this Sonance DSP amplifier. The advanced room correction technology offers hundreds of EQ presets that let you customize audio setup effortlessly via simple pull-down menus, and reliable digital-to-analog conversion provides high-resolution sound from a variety of sources. This Sonance DSP amplifier has a compact design that offers convenient portability.
    See all Power Amplifiers
    See all Power Amplifiers
  5. Alpine - S-Series Class D Bridgeable Multichannel Amplifier with Variable Crossovers - Black - Front_Zoom
    Top comment

    "Alpine Amplifier...Upgrade from another amplifier big difference especially with the hi resolution audio....Alpine amplifier...Outstanding amplifier. Very clean amp. Low distortion. Very happy."

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    Product Description

    Pump up the audio in your ride with this Alpine Next Generation S-Series four-channel car amplifier. Delivering 60W per channel, or 180W to a subwoofer and 60W to two channels, this amplifier is extremely versatile. The compact size provides mounting versatility. This Alpine S-Series four-channel car amplifier automatically reduces output when it senses overheating risks.
    See all Multi-Channel Amps
    Top comment

    "Alpine Amplifier...Upgrade from another amplifier big difference especially with the hi resolution audio....Alpine amplifier...Outstanding amplifier. Very clean amp. Low distortion. Very happy."

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    Product Description

    Pump up the audio in your ride with this Alpine Next Generation S-Series four-channel car amplifier. Delivering 60W per channel, or 180W to a subwoofer and 60W to two channels, this amplifier is extremely versatile. The compact size provides mounting versatility. This Alpine S-Series four-channel car amplifier automatically reduces output when it senses overheating risks.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  6. Kenwood - IPX67 Waterproof Marine/Motorsports Full Range Amplifier with Bluetooth - Gray - Front_Zoom

    Product Description

    The KAC-M5024BT is a Compact Waterproof 4 Channel Marine/Motorsports Amplifier with Wired Bluetooth Controller. This allows you to easily connect your iPhone or Android device and wirelessly stream your favorite music directly to the amplifier!
    See all Car Amplifiers

    Product Description

    The KAC-M5024BT is a Compact Waterproof 4 Channel Marine/Motorsports Amplifier with Wired Bluetooth Controller. This allows you to easily connect your iPhone or Android device and wirelessly stream your favorite music directly to the amplifier!
    See all Car Amplifiers
    See all Car Amplifiers
  7. Sonance - 2-150 MKII - 300W 2.0-Ch. DSP Power Amplifier (Each) - Black - Front_Zoom
    Top comment

    "Super new power Amplifier....Excellent Amplifier...Excellent amplifier, works as expected. Easy setup."

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    Product Description

    Create an exciting party atmosphere with this Sonance DSP amplifier. The advanced room correction technology offers hundreds of EQ presets that let you customize audio setup effortlessly via simple pull-down menus, and reliable digital-to-analog conversion provides high-resolution sound from a variety of sources. This Sonance DSP amplifier has a compact design that offers convenient portability.
    See all Power Amplifiers
    Top comment

    "Super new power Amplifier....Excellent Amplifier...Excellent amplifier, works as expected. Easy setup."

    See all customer reviews

    Product Description

    Create an exciting party atmosphere with this Sonance DSP amplifier. The advanced room correction technology offers hundreds of EQ presets that let you customize audio setup effortlessly via simple pull-down menus, and reliable digital-to-analog conversion provides high-resolution sound from a variety of sources. This Sonance DSP amplifier has a compact design that offers convenient portability.
    See all Power Amplifiers
    See all Power Amplifiers
  8. Kenwood - 400W Class-D Bridgeable Multichannel Compact Marine Motorsports Amplifier with Variable Crossovers - Gray - Front_Zoom
    Top comment

    "compact with lots of power...compact power amp for those with little space to spare - needed to fit in a cubby under a seat - would be unobtrusive elsewhere too...Tiny/ compact design Kenwood amplifier...Amplifier seems to be good. It is a tiny compact design though. "

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    Product Description

    Upgrade your sound system with this compact Kenwood Marine Motorsports 4-channel amplifier. It delivers 400W total power for crisp, clear tones, and the conformal-coated circuit board keeps out moisture and salt for safe use in both land and water vehicles. This compact Kenwood 4-channel amplifier is easy to install in tight spaces for added versatility.
    See all Multi-Channel Amps
    Top comment

    "compact with lots of power...compact power amp for those with little space to spare - needed to fit in a cubby under a seat - would be unobtrusive elsewhere too...Tiny/ compact design Kenwood amplifier...Amplifier seems to be good. It is a tiny compact design though. "

    See all customer reviews

    Product Description

    Upgrade your sound system with this compact Kenwood Marine Motorsports 4-channel amplifier. It delivers 400W total power for crisp, clear tones, and the conformal-coated circuit board keeps out moisture and salt for safe use in both land and water vehicles. This compact Kenwood 4-channel amplifier is easy to install in tight spaces for added versatility.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  9. KICKER - AFS Fuse (2-Pack) - Gray/Metal - Front_Zoom

    Model: 46AFS200
    SKU: 6349304
    Top comment

    "I Have this fuse running to two Alpine s-a60m 600 watt amplifiers and one mrv-f300 amplifier and have had no problems!!!"

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    Product Description

    Protect your vehicle's audio equipment and help prevent electrical shorts with this two-pack of KICKER 200-amp fuses. The mini-ANL design is compact and versatile, while the clear color lets you easily check for scorch marks or frayed wires. These KICKER 200-amp fuses are platinum-plated for great conductivity and excellent current transfer.
    See all Fuses & Capacitors
    Top comment

    "I Have this fuse running to two Alpine s-a60m 600 watt amplifiers and one mrv-f300 amplifier and have had no problems!!!"

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    Product Description

    Protect your vehicle's audio equipment and help prevent electrical shorts with this two-pack of KICKER 200-amp fuses. The mini-ANL design is compact and versatile, while the clear color lets you easily check for scorch marks or frayed wires. These KICKER 200-amp fuses are platinum-plated for great conductivity and excellent current transfer.
    See all Fuses & Capacitors
    See all Fuses & Capacitors
  10. AudioControl - 300W 4-Channel Class D Micro Amplifier - Black - Front_Zoom
    Top comment

    "Replaced a blown amplifier...Compact, powerful, clean. Works like a charm, easy to install."

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    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

    "Replaced a blown amplifier...Compact, powerful, clean. Works like a charm, easy to install."

    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
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