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Best Buy customers often prefer the following products when searching for 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. Nady - AxeHead™ Mini Headphone Guitar Amplifier - Black - Front_Zoom
    Top comment

    "This is an incredible jam machine in a tiny little box! Recommend to one and all, new or old, you'll love this!...Pretty good mini amp lol...Keeps things quiet and actually picks up really well. Turn on switch is small and the charging port is old school, would love to see future update to usb c (probably not needed). "

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    Product Description

    Practice guitar without disturbing anyone with this AxeHead headphone guitar amp. It plugs directly into your instrument, and its amp-simulation capability delivers professional-sounding audio through your headphones without the need for a bulky amp and speaker. This AxeHead headphone guitar amp operates for up to 15 hours on a single battery charge.
    See all Amps & Effects
    Top comment

    "This is an incredible jam machine in a tiny little box! Recommend to one and all, new or old, you'll love this!...Pretty good mini amp lol...Keeps things quiet and actually picks up really well. Turn on switch is small and the charging port is old school, would love to see future update to usb c (probably not needed). "

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    Product Description

    Practice guitar without disturbing anyone with this AxeHead headphone guitar amp. It plugs directly into your instrument, and its amp-simulation capability delivers professional-sounding audio through your headphones without the need for a bulky amp and speaker. This AxeHead headphone guitar amp operates for up to 15 hours on a single battery charge.
    See all Amps & Effects
    See all Amps & Effects
  2. KICKER - KEY 500W Mono Amplifier with Variable Crossovers - Black - Front_Zoom
    Top comment

    "One of the smallest Amps I’ve ever seen and most powerful for the size...Very small compact and hits hard in my coupe, doesn’t make my lights dim solid purchase for a stealth system"

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    Product Description

    Boost your car sound system with this 500W Kicker KEY smart mono amplifier. The 24dB subsonic and low-pass crossovers offer effective user control of audio, while the FIT 2+ feature enhances compatibility with various audio systems. This Kicker KEY smart mono amplifier features an AI-controlled DSP to restore sound quality and deliver crisp, even bass, and the compact design allows easy setup.
    See all Car Amplifiers
    Top comment

    "One of the smallest Amps I’ve ever seen and most powerful for the size...Very small compact and hits hard in my coupe, doesn’t make my lights dim solid purchase for a stealth system"

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    Product Description

    Boost your car sound system with this 500W Kicker KEY smart mono amplifier. The 24dB subsonic and low-pass crossovers offer effective user control of audio, while the FIT 2+ feature enhances compatibility with various audio systems. This Kicker KEY smart mono amplifier features an AI-controlled DSP to restore sound quality and deliver crisp, even bass, and the compact design allows easy setup.
    See all Car Amplifiers
    See all Car Amplifiers
  3. PYLE - 20W 2-Ch. Power Amplifier - Black - Front_Zoom
    Top comment

    "Small compact and a great addition to any wired speaker....Good small amplifier"

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    Product Description

    Enjoy full amplified sound in a small footprint with this Pyle Pro PTA2 power amplifier. Perfect for parties, this little amp is completely portable and features left and right push buttons for balanced control of your sound. The 2 x 40 max wattage output of this Pyle Pro PTA2 power amplifier ensures you hear every beat.
    See all Power Amps
    Top comment

    "Small compact and a great addition to any wired speaker....Good small amplifier"

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    Product Description

    Enjoy full amplified sound in a small footprint with this Pyle Pro PTA2 power amplifier. Perfect for parties, this little amp is completely portable and features left and right push buttons for balanced control of your sound. The 2 x 40 max wattage output of this Pyle Pro PTA2 power amplifier ensures you hear every beat.
    See all Power Amps
    See all Power Amps
  4. Alpine - Power Pack 180W Class D Bridgeable Multichannel Amplifier with High-Pass Filter - Black - Front_Zoom
    Top comment

    "This product is well worth the money. It's small compact and makes my music sound fantastic....Great sound from a small compact unit...Great sound from a small compact unit, excellent installation from geek squad"

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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

    "This product is well worth the money. It's small compact and makes my music sound fantastic....Great sound from a small compact unit...Great sound from a small compact unit, excellent installation from geek squad"

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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
    See all Multi-Channel Amps
  5. Kenwood - Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Black - Front_Zoom
    Top comment

    "Great little amplifier...It small an powerful i have it connected to 1 compact 12...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

    "Great little amplifier...It small an powerful i have it connected to 1 compact 12...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
  6. Rocketfish™ - 4 Output Coaxial Amplifier - Silver - Front_Zoom
    Top comment

    "Mini drop amplifier...Works better than most amplifiers you get with standard antennas...Rocketfish - Bidirectional Mini Drop Amplifier - S...Rocketfish - Bidirectional Mini Drop Amplifier - was just what I needed. Not as strong as a commercial amplifier, but got the job done."

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    Product Description

    Connect up to 4 devices to the coaxial connection from your cable or indoor/outdoor VHF/UHF/FM antenna with this mini drop amplifier. It works with the DC power provided by components, or with the AC power provided by the included adapter.
    See all Splitters, Couplers & Adapters
    Top comment

    "Mini drop amplifier...Works better than most amplifiers you get with standard antennas...Rocketfish - Bidirectional Mini Drop Amplifier - S...Rocketfish - Bidirectional Mini Drop Amplifier - was just what I needed. Not as strong as a commercial amplifier, but got the job done."

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    Product Description

    Connect up to 4 devices to the coaxial connection from your cable or indoor/outdoor VHF/UHF/FM antenna with this mini drop amplifier. It works with the DC power provided by components, or with the AC power provided by the included adapter.
    See all Splitters, Couplers & Adapters
    See all Splitters, Couplers & Adapters
  7. KICKER - CX 800W Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Gray - Front_Zoom
    Top comment

    "Small compact amp fits great in location mounted has a lot of power to push my sun...Great amplifier...Great amplifier. Small and compact with a nice amount of power behind it."

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    Product Description

    Create a custom sound experience with this KICKER CX-Series mono amplifier. The variable 12dB crossovers provide the control you need to get the exact sound you want, and the 24dB subsonic filter protects against damaging frequencies. With its small footprint and Fail-safe Integration Technology-PLUS, this KICKER CX-Series mono amplifier is easy to install and works with almost any radio.
    See all Mono Subwoofer Amps
    Top comment

    "Small compact amp fits great in location mounted has a lot of power to push my sun...Great amplifier...Great amplifier. Small and compact with a nice amount of power behind it."

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    Product Description

    Create a custom sound experience with this KICKER CX-Series mono amplifier. The variable 12dB crossovers provide the control you need to get the exact sound you want, and the 24dB subsonic filter protects against damaging frequencies. With its small footprint and Fail-safe Integration Technology-PLUS, this KICKER CX-Series mono amplifier is easy to install and works with almost any radio.
    See all Mono Subwoofer Amps
    See all Mono Subwoofer Amps
  8. Nuheara - IQbuds 2 MAX Personal Hearing Amplifier - Black - Front_Zoom
    Top comment

    "Great but they were to large for my ear. Even with the smallest ends...Good hearing amplifiers"

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    Product Description

    IQbuds 2 MAX are multi award-winning hearing buds that personalize and enhance your listening experience. Named as Time Magazine Best 100 Inventions of 2020, IQbuds 2 MAX set a new standard in augmented hearing devices combining all the benefits of a high-end earbuds with advanced features that allow you to control your world of sound. Best in class active noise cancelling technology allows you to turn down your world while you enjoy pitch perfect sound fidelity. With Ear ID you can personalize your listening experience based on your own hearing profile. World sound control features include Speech-in-Noise Control (SINC) that enables you to boost conversations, FOCUS that allows you to focus on sounds in front of you, and World EQ which filters the level of bass and treble in your sound environment. IQbuds2 MAX enables hands free phone calls and the ability to connect to SIRI and Google Assistant. With the compact charging case you can enjoy 20 hours of on-the-go Bluetooth streaming and 36 hours of hearing enhancement. Connect IQbuds2 MAX to IQstream TV (sold separately) to personalize your TV volume while allowing others in the room to listen at their comfortable levels. IQbuds2 MAX are the perfect device for when you feel like you need some situational hearing enhancement but you’re not quite ready for a hearing aid. Required to be worn in both ears simultaneously for optimal listening and performance. Hearing profile customization requires user to complete the EAR ID profile in the IQbuds App for iOS or Android.
    See all Hearing Amplifiers
    Top comment

    "Great but they were to large for my ear. Even with the smallest ends...Good hearing amplifiers"

    See all customer reviews

    Product Description

    IQbuds 2 MAX are multi award-winning hearing buds that personalize and enhance your listening experience. Named as Time Magazine Best 100 Inventions of 2020, IQbuds 2 MAX set a new standard in augmented hearing devices combining all the benefits of a high-end earbuds with advanced features that allow you to control your world of sound. Best in class active noise cancelling technology allows you to turn down your world while you enjoy pitch perfect sound fidelity. With Ear ID you can personalize your listening experience based on your own hearing profile. World sound control features include Speech-in-Noise Control (SINC) that enables you to boost conversations, FOCUS that allows you to focus on sounds in front of you, and World EQ which filters the level of bass and treble in your sound environment. IQbuds2 MAX enables hands free phone calls and the ability to connect to SIRI and Google Assistant. With the compact charging case you can enjoy 20 hours of on-the-go Bluetooth streaming and 36 hours of hearing enhancement. Connect IQbuds2 MAX to IQstream TV (sold separately) to personalize your TV volume while allowing others in the room to listen at their comfortable levels. IQbuds2 MAX are the perfect device for when you feel like you need some situational hearing enhancement but you’re not quite ready for a hearing aid. Required to be worn in both ears simultaneously for optimal listening and performance. Hearing profile customization requires user to complete the EAR ID profile in the IQbuds App for iOS or Android.
    See all Hearing Amplifiers
    See all Hearing Amplifiers
  9. Technics - Grand Class Network Integrated Audio Amplifier - Black - Front_Zoom
    Top comment

    "I could not be happier with this Amplifier....The compact amp that does it all (almost) !...If you're looking for a beautiful clean sounding compact integrated for a small to mid size room. That does it all in the digital realm, has HDMI ARC, and a handful of analog connections you deserve to give the Technics a demo !"

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    Product Description

    A definitive living room audio center that enables seamless enjoyment of video, audio, and music, the Technics SU-GX70 is a heavily featured streaming amplifier that combines the sonic genes of Technics Grand Class components with a wealth of source functions. Abundant input options let you choose how you want to listen to your favorite movies, music and more, whether you’re connecting directly to the source with multiple connection options, or streaming wirelessly in high resolution playback. The premium design makes the SU-GX70 a welcome addition to any home cinema or audio set-up.
    See all Integrated Amplifiers
    Top comment

    "I could not be happier with this Amplifier....The compact amp that does it all (almost) !...If you're looking for a beautiful clean sounding compact integrated for a small to mid size room. That does it all in the digital realm, has HDMI ARC, and a handful of analog connections you deserve to give the Technics a demo !"

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    Product Description

    A definitive living room audio center that enables seamless enjoyment of video, audio, and music, the Technics SU-GX70 is a heavily featured streaming amplifier that combines the sonic genes of Technics Grand Class components with a wealth of source functions. Abundant input options let you choose how you want to listen to your favorite movies, music and more, whether you’re connecting directly to the source with multiple connection options, or streaming wirelessly in high resolution playback. The premium design makes the SU-GX70 a welcome addition to any home cinema or audio set-up.
    See all Integrated Amplifiers
    See all Integrated Amplifiers
  10. KICKER - KEY 200W Multichannel Amplifier with High-Pass Crossover - Black - Front_Zoom
    Top comment

    "Easy to set up, Great sound stage, very small & compact, runs cool, excellent tech support. love it...Kicker Key 200.4 Amplifier Kicks!...Kicker Key 200.4 Amplifier Kicks! Great product. Easy install. Compact."

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    Product Description

    Turn it up to 11 with this KICKER four-channel amplifier. With 200W of raw power, this amplifier boosts the potential of OEM or aftermarket stereos for effortless incorporation. Acoustic correction provides concert-quality sound, while FIT2 technology ensures compatibility with nearly every stock or custom stereo system on the market. This KICKER four-channel amplifier supports the start/stop technology found in hybrids and other gas-savers, ensuring unimpeded enjoyment.
    See all Multi-Channel Amps
    Top comment

    "Easy to set up, Great sound stage, very small & compact, runs cool, excellent tech support. love it...Kicker Key 200.4 Amplifier Kicks!...Kicker Key 200.4 Amplifier Kicks! Great product. Easy install. Compact."

    See all customer reviews

    Product Description

    Turn it up to 11 with this KICKER four-channel amplifier. With 200W of raw power, this amplifier boosts the potential of OEM or aftermarket stereos for effortless incorporation. Acoustic correction provides concert-quality sound, while FIT2 technology ensures compatibility with nearly every stock or custom stereo system on the market. This KICKER four-channel amplifier supports the start/stop technology found in hybrids and other gas-savers, ensuring unimpeded enjoyment.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
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