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Smallest Amplifier

An amplifier is a device that takes an electrical signal and increases its strength by adding energy to it. It does this by increasing the amplitude of the signal. Amplifiers are used in all manner of applications, from music and audio equipment to computers and other electronic devices. If you're searching for the smallest amplifier that still packs a powerful punch, we've got you covered. Browse the top-ranked list of some of our smallest amplifiers below along with associated reviews and opinions.

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  1. Stinger - Micro 5-Channel 1000W Marine and Powersports Amplifier - Silver

    SKU: J2VK4W7G7K

    This amp is powerful for its size. It is small enough to hide inside a car or boat but don't let its size fool you. ...Small and powerful....Super impressed by the small powerful amplifier..

    Product Description

    A compact, weather-resistant silver amplifier delivering 1000W power with five channels and remote bass control.
    See all Multi-Channel Amps
    Your price for this item is $759.99

  2. Stinger - Micro 4-Channel 700W Marine and Powersports Amplifier - Silver

    SKU: J2VK4TVFC6

    A lot of power in a small package...A lot of power from a small package and looks nice too!...High quality, 'big' sound from a tiny amp!...This is a great amp installed by a Best Buy Audio technician....

    Product Description

    A compact silver Class D amplifier with 700W power, weather resistance, and remote subwoofer control.
    See all Multi-Channel Amps
    Your price for this item is $629.99

  3. Hifonics - COLOSSUS MINI 1200W Ultra-Compact Mono Block Car Audio Amplifier - Black

    SKU: J3G2WPX79P

    Product Description

    An ultra-compact black mono block amplifier delivering 1200W power, ideal for vehicles and motorcycles.
    See all Mono Subwoofer Amps
    Your price for this item is $229.99

  4. Hifonics - COLOSSUS MINI 3000W Ultra-Compact Mono Block Car Audio Amplifier - Black

    SKU: J3G2WPX76L

    Product Description

    An ultra-compact black mono block amplifier delivering 3000W Class D power for versatile vehicle audio setups.
    See all Mono Subwoofer Amps
    Your price for this item is $319.99

  5. Hifonics - COLOSSUS MINI 800W Ultra-Compact Four-Channel Car Audio Amplifier - Black

    SKU: J3G2WPX792

    Product Description

    An ultra-compact black four-channel car amplifier delivering 800W with bridgeable and speaker-level input features.
    See all Multi-Channel Amps
    Your price for this item is $249.99

  6. Hifonics - COLOSSUS MINI 400W Ultra-Compact Four-Channel Car Audio Amplifier - Black

    SKU: J3G2WPX7SS

    Product Description

    An ultra-compact black four-channel Class D amplifier delivering 400W, ideal for vehicles and motorcycles.
    See all Multi-Channel Amps
    Your price for this item is $189.99

  7. Hifonics - COLOSSUS MINI 1500W Ultra-Compact Mono Block Car Audio Amplifier - Black

    SKU: J3G2WPX79T

    Product Description

    A black ultra-compact mono block car amplifier delivering 1500W of power for versatile vehicle audio setups.
    See all Mono Subwoofer Amps
    Your price for this item is $289.99

  8. KICKER - KEY 500W Mono Amplifier with Variable Crossovers - Black

    SKU: JXHZRTJ483

    One of the smallest Amps I’ve ever seen and most powerful for the size...Nice compact amp for powering a subwoofer. Pleased with the punch it has in a small package

    Product Description

    A compact black mono amplifier with AI-controlled DSP, variable crossovers, and enhanced audio compatibility.
    See all Mono Subwoofer Amps
    Your price for this item is $239.99
    Save $60
    The previous price was $299.99
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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.