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

Main Results
  1. PYLE - 20W 2-Ch. Power Amplifier - Black - Front_Zoom
    Top comment

    "Small compact and a great addition to any wired speaker....Perfect Amp for Compact Space...This amp fits perfectly into the small cabinet where our garage speakers are wired. "

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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....Perfect Amp for Compact Space...This amp fits perfectly into the small cabinet where our garage speakers are wired. "

    See all customer reviews

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

    "Great amp!...Great deal for the price. Small and compact also...Amp...Perfect. Small and compact. Works as intended to do so."

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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

    "Great amp!...Great deal for the price. Small and compact also...Amp...Perfect. Small and compact. Works as intended to do so."

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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
    See all Multi-Channel Amps
  3. KICKER - CX 800W Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Gray - Front_Zoom
    Top comment

    "Amp...Satisfied with product. Handles nicely small and compact...Great amp...Small compact amp fits great in location mounted has a lot of power to push my sun"

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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

    "Amp...Satisfied with product. Handles nicely small and compact...Great amp...Small compact amp fits great in location mounted has a lot of power to push my sun"

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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
  4. Kenwood - Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Black - Front_Zoom
    Top comment

    "Great little amp...This amp is compact and powers my 2 12" Kenwoods easily plus I only have the amp 1/2 way up. ...Nice small amp...Easy to adjust. Small and compact. Clean and cosmetics are on point"

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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 amp...This amp is compact and powers my 2 12" Kenwoods easily plus I only have the amp 1/2 way up. ...Nice small amp...Easy to adjust. Small and compact. Clean and cosmetics are on point"

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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
  5. 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...Awesome amp!!...This tiny amp is phenomenal. Small enough to put behind the dash in my 21 F150. "

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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...Awesome amp!!...This tiny amp is phenomenal. Small enough to put behind the dash in my 21 F150. "

    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
  6. Alpine - Power Pack 180W Class D Bridgeable Multichannel Amplifier with High-Pass Filter - Black - Front_Zoom
    Top comment

    "Great amp for small compact areas....This is a good amp for small areas and when you have children. ...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

    "Great amp for small compact areas....This is a good amp for small areas and when you have children. ...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
  7. Kenwood - 400W Class D Bridgeable Multichannel Amplifier with Variable Crossovers - Gray - Front_Zoom
    Top comment

    "Tiny. Exactly what I needed. Fits under seat of tundra, replaces little factory amp...Tiny/ compact design Kenwood amplifier...Amplifier seems to be good. It is a tiny compact design though. I hope it still provides the power that specifications claim it does. "

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    Product Description

    Upgrade your sound system with this Kenwood 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

    "Tiny. Exactly what I needed. Fits under seat of tundra, replaces little factory amp...Tiny/ compact design Kenwood amplifier...Amplifier seems to be good. It is a tiny compact design though. I hope it still provides the power that specifications claim it does. "

    See all customer reviews

    Product Description

    Upgrade your sound system with this Kenwood 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
  8. Pioneer - 4-Channel Class D Amplifier - Black - Front_Zoom
    Top comment

    "More compact and powerful than GM-DX500 series amp it replaced. ...Not a bad amp...I bought this to replace a Sony mini amp and I was able to install this myself within an hour. "

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    Product Description

    The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.
    See all Multi-Channel Amps
    Top comment

    "More compact and powerful than GM-DX500 series amp it replaced. ...Not a bad amp...I bought this to replace a Sony mini amp and I was able to install this myself within an hour. "

    See all customer reviews

    Product Description

    The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  9. KICKER - CX 400W Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Black - Front_Zoom
    Top comment

    "Sub compact...Small, compact and next over heats. This amo pushed speakers very well....Compact...Small yet powerful amp when paired with the right speaker it can really make some bass."

    See all customer reviews

    Product Description

    Enhance music with this KICKER CX-Series Mono amplifier. The three-second delay when turning this device on or off eliminates unwanted interference, while the subsonic filter removes potentially damaging frequencies. This KICKER CX-Series Mono amplifier has a compact design for easy installation, and the Fail-safe Integration Technology-PLUS provides compatibility to work with almost any radio.
    See all Mono Subwoofer Amps
    Top comment

    "Sub compact...Small, compact and next over heats. This amo pushed speakers very well....Compact...Small yet powerful amp when paired with the right speaker it can really make some bass."

    See all customer reviews

    Product Description

    Enhance music with this KICKER CX-Series Mono amplifier. The three-second delay when turning this device on or off eliminates unwanted interference, while the subsonic filter removes potentially damaging frequencies. This KICKER CX-Series Mono amplifier has a compact design for easy installation, and the Fail-safe Integration Technology-PLUS provides compatibility to work with almost any radio.
    See all Mono Subwoofer Amps
    See all Mono Subwoofer Amps
  10. Stinger - Micro 4-Channel 700W Marine and Powersports Amplifier - Silver - Front_Zoom
    Top comment

    "A lot of power in a small package...Great little amp, have this one and the 5 channel. 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. IT is very compact, so it fit behind the steering column, very crisp, clean and powerful sound from this tiny device designed for marine and powersports (aka motorcycles, boats, four wheelers, etc.) but I went for it for my Chrysler 300 anyway. "

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    Product Description

    Take your audio off-road or on the water with this Micro 4-Channel 700W Marine and Powersports Amplifier by Stinger. The SPX700X4 is a full-range Class D amplifier that delivers massive power in a compact size to fit limited spaces. This weather-resistant amplifier features an IPX4/5 rated design to reject salt and fog intrusion in harsh marine environments. Dial in your bass just the way you like it with the included remote subwoofer level controller. This micro amplifier is ideal for boaters or powersports users who have limited space available yet demand powerful sound.
    See all Multi-Channel Amps
    Top comment

    "A lot of power in a small package...Great little amp, have this one and the 5 channel. 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. IT is very compact, so it fit behind the steering column, very crisp, clean and powerful sound from this tiny device designed for marine and powersports (aka motorcycles, boats, four wheelers, etc.) but I went for it for my Chrysler 300 anyway. "

    See all customer reviews

    Product Description

    Take your audio off-road or on the water with this Micro 4-Channel 700W Marine and Powersports Amplifier by Stinger. The SPX700X4 is a full-range Class D amplifier that delivers massive power in a compact size to fit limited spaces. This weather-resistant amplifier features an IPX4/5 rated design to reject salt and fog intrusion in harsh marine environments. Dial in your bass just the way you like it with the included remote subwoofer level controller. This micro amplifier is ideal for boaters or powersports users who have limited space available yet demand powerful sound.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
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