Best Buy Tech Fest SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

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Best Buy Tech Fest SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

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multi-channel amps

Cheap Amplifier

An amplifier is a device that takes an electrical signal and increases its strength by adding energy to the signal. If you're looking for a way to get more life out of your music, movies, and games, an amplifier can do the trick. Browse the top-ranked list of cheap amplifiers below along with associated reviews and opinions.

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  1. Rocketfish™ - 4 Output Coaxial Amplifier - Silver

    SKU: J2FPJK7J4X

    Mini drop amplifier...Works better than most amplifiers you get with standard antennas...Major upgrade over some old Realistic amplifiers...I'd like to see them come out with a larger 8 port amplifier...

    Product Description

    A silver coaxial amplifier that boosts signal and connects up to four devices for improved reception.
    See all A/V Adapters
    Your price for this item is $31.99
    Save $3
    The previous price was $34.99

  2. Metra - Line Output Converter - Black

    SKU: J7RX7YGKXK

    Exactly what i needed to add a voice amplifier to the stock stereo on a 2018 Nissan Maxima to help the aftermarket speakers sound better...Excelent product it really helps if you want to put a amplifier...

    Product Description

    A black two-channel converter that transforms speaker-level signals to line-level audio for easy amplifier integration.
    See all Deck Converters
    Your price for this item is $17.99

  3. Crunch - V-DRIVE 2125W 2-Channel Car Audio Amplifier - Black

    SKU: J3G2WPXJRX

    Product Description

    A black Class D 2-channel car amplifier with LED VU-Meter, variable bass boost, and wired remote.
    See all Multi-Channel Amps
    Your price for this item is $89.99
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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.