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Small Amps

Amplifiers can increase the level or strength of audio signals to help you enjoy full powerful sound. If you're looking for a compact and portable amp that can fit in your bag or just about anywhere else, we've got you covered. Browse the top-ranked list of small amps below along with associated reviews and opinions.

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  1. 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

  2. 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

  3. 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

  4. 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

  5. Alpine - 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover - Black

    SKU: J3XV89X695

    Product Description

    A compact black Class D amplifier delivering 400W power with bridgeable channels and built-in crossover.
    See all Multi-Channel Amps
    Your price for this item is $269.99

  6. 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

  7. Alpine - S-Series Class D Mono Amplifier with Variable Crossovers - Black

    SKU: J3XV8SKS82

    Product Description

    A powerful black Class D mono amplifier delivering up to 1200W with variable crossovers and auto turn-on.
    See all Mono Subwoofer Amps
    Your price for this item is $439.95
    Save $110
    The previous price was $549.99

  8. 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

  9. KICKER - Compact all-weather 4-channel amplifier 45 watts RMS x 4 - Black

    SKU: JXHZRT2ZLH

    Product Description

    A compact black all-weather 4-channel amplifier delivering 45 watts RMS per channel for versatile audio setups.
    See all Multi-Channel Amps
    Your price for this item is $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.