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

Audio amplifiers are a key component in a high-quality audio system. They take the signal from the source components and boost it to line level, which is required for speakers to work. Many amplifiers also offer additional features, such as tone controls or headphone jacks. Browse the top-ranked list of crossover amplifiers below along with associated reviews and opinions.

Main Results
  1. Pioneer - 4-Channel - Class D, 1200 W Max Power - Amplifier - Black - Front_Zoom
    Top comment

    "Has the choice of 2,3,4 channel which makes it nice if you're building your system in stages. Plus the built-in crossovers make it nice to multiple uses...Amplifier"

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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

    "Has the choice of 2,3,4 channel which makes it nice if you're building your system in stages. Plus the built-in crossovers make it nice to multiple uses...Amplifier"

    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
  2. KICKER - CX 360W Class AB Bridgeable Multichannel Amplifier with Variable Crossovers - Black - Angle_Zoom
    Top comment

    "I was able to put this behind the seat in my pickup truck vertically which is not something I had on past amplifiers. I am running Infinity 6x9 for the rear and Infinity 3 1/2 for the front and the built in crossover makes the fronts sound loud without distortion and the 6x9 have excellent bass."

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    Product Description

    Boost the sound of vehicle door speakers with this KICKER four-channel amplifier. The variable bass boost lets you easily tune the system as desired, and Fail-safe Integration Technology-PLUS provides clear sounds with its noise rejection. This KICKER four-channel amplifier features high-efficiency heat sinks, preventing overheating during long periods of use.
    See all Multi-Channel Amps
    Top comment

    "I was able to put this behind the seat in my pickup truck vertically which is not something I had on past amplifiers. I am running Infinity 6x9 for the rear and Infinity 3 1/2 for the front and the built in crossover makes the fronts sound loud without distortion and the 6x9 have excellent bass."

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    Product Description

    Boost the sound of vehicle door speakers with this KICKER four-channel amplifier. The variable bass boost lets you easily tune the system as desired, and Fail-safe Integration Technology-PLUS provides clear sounds with its noise rejection. This KICKER four-channel amplifier features high-efficiency heat sinks, preventing overheating during long periods of use.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  3. Alpine - Power Pack 180W Class D Bridgeable Multichannel Amplifier with High-Pass Filter - Black - Front_Zoom
    Top comment

    "This unit lacks adjustment screws for adjusting output crossover,and equalization. Others this is a very compact amp. ...The amplifier has both RCA and line-level inputs (cut the RCAs to use line-level) as well as a dip-switch controlled crossover. "

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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 unit lacks adjustment screws for adjusting output crossover,and equalization. Others this is a very compact amp. ...The amplifier has both RCA and line-level inputs (cut the RCAs to use line-level) as well as a dip-switch controlled crossover. "

    See all customer reviews

    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
  4. JBL - Club 600W Class D Digital Mono Amplifier with Variable Low-Pass Crossover - Black - Front_Zoom
    Top comment

    "Great amplifier...Great quality amplifier. Nice clean look with versatility to adjust settings."

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    Product Description

    Enjoy robust, realistic music in your vehicle with this JBL Club car amplifier. The compact size allows for a simple installation process, while the 600W of peak power deliver dynamic, rich bass with low distortion. This JBL Club car amplifier has an included wired RBC remote that supports easy, convenient volume control, and the wire-to-RCA adapters provide secure connections.
    See all Multi-Channel Amps
    Top comment

    "Great amplifier...Great quality amplifier. Nice clean look with versatility to adjust settings."

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    Product Description

    Enjoy robust, realistic music in your vehicle with this JBL Club car amplifier. The compact size allows for a simple installation process, while the 600W of peak power deliver dynamic, rich bass with low distortion. This JBL Club car amplifier has an included wired RBC remote that supports easy, convenient volume control, and the wire-to-RCA adapters provide secure connections.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  5. AudioControl - 300W 4-Channel Class D Micro Amplifier - Black - Front_Zoom
    Top comment

    "Replaced a blown amplifier"

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    Product Description

    Enjoy powerful audio in your vehicle with this 300W 4-Channel Class D Micro Amplifier by AudioControl. The ACM-4.300 features a compact chassis that allows installation in confined spaces and a selectable high-pass crossover to get the most robust sound for your car’s audio system. This micro amplifier also features a reversible cover plate for flexibility in any installation scenario.
    See all Multi-Channel Amps
    Top comment

    "Replaced a blown amplifier"

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    Product Description

    Enjoy powerful audio in your vehicle with this 300W 4-Channel Class D Micro Amplifier by AudioControl. The ACM-4.300 features a compact chassis that allows installation in confined spaces and a selectable high-pass crossover to get the most robust sound for your car’s audio system. This micro amplifier also features a reversible cover plate for flexibility in any installation scenario.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  6. Alpine - 400W Class D Bridgeable Multichannel Amplifier with Built-In Crossover - Black - Front_Zoom

    Product Description

    Enhance your audio system with this Alpine Power Pack 4-channel car amp. The Dynamic Peak Power technology doubles the amplifier's output power on musical peaks by providing a quick energy boost when needed. This Alpine Power Pack 4-channel car amp delivers 50 watts RMS per channel for maximum output, and the tiny chassis ensures it fits anywhere in your vehicle.
    See all Multi-Channel Amps

    Product Description

    Enhance your audio system with this Alpine Power Pack 4-channel car amp. The Dynamic Peak Power technology doubles the amplifier's output power on musical peaks by providing a quick energy boost when needed. This Alpine Power Pack 4-channel car amp delivers 50 watts RMS per channel for maximum output, and the tiny chassis ensures it fits anywhere in your vehicle.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  7. Kenwood - Class D Bridgeable Multichannel Amplifier with Variable Crossovers - Black - Front_Zoom
    Top comment

    "I can definitely attest that Kenwood’s amplifiers get better with every new generation amplifier they release. ...Amplifier...Nice amplifier and great quality would recommend to others"

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    Product Description

    Upgrade your home theater system with this 600W Kenwood power amp. It has a frequency response of 20-50kHz to fill the room with vibrant sound, and all connections are on one side, making it easier to attach equipment. This Kenwood power amp comes with a speaker-level input harness and bass-level remote for convenience.
    See all Multi-Channel Amps
    Top comment

    "I can definitely attest that Kenwood’s amplifiers get better with every new generation amplifier they release. ...Amplifier...Nice amplifier and great quality would recommend to others"

    See all customer reviews

    Product Description

    Upgrade your home theater system with this 600W Kenwood power amp. It has a frequency response of 20-50kHz to fill the room with vibrant sound, and all connections are on one side, making it easier to attach equipment. This Kenwood power amp comes with a speaker-level input harness and bass-level remote for convenience.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  8. Alpine - S-Series Class D Bridgeable Multichannel Amplifier with Variable Crossovers - Black - Front_Zoom
    Top comment

    "Alpine Speaker Amplifier...Good looking size amplifier for my new Alpine speaker set. The sound that it gives is incredible and fit perfect under back seat on my 2015 Silverado....Great amplifier...Great amplifier. Easy to install. Turned car into an amphitheater with tremendous bass added to speakers"

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    Product Description

    Pump up the audio in your ride with this Alpine S-Series four-channel car amplifier. Delivering 55W per channel, or 160W to a subwoofer and 55W to two channels, this amplifier is extremely versatile. The compact size provides mounting versatility. This Alpine S-Series four-channel car amplifier automatically reduces output when it senses overheating risks.
    See all Multi-Channel Amps
    Top comment

    "Alpine Speaker Amplifier...Good looking size amplifier for my new Alpine speaker set. The sound that it gives is incredible and fit perfect under back seat on my 2015 Silverado....Great amplifier...Great amplifier. Easy to install. Turned car into an amphitheater with tremendous bass added to speakers"

    See all customer reviews

    Product Description

    Pump up the audio in your ride with this Alpine S-Series four-channel car amplifier. Delivering 55W per channel, or 160W to a subwoofer and 55W to two channels, this amplifier is extremely versatile. The compact size provides mounting versatility. This Alpine S-Series four-channel car amplifier automatically reduces output when it senses overheating risks.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
  9. Pioneer - 1-Channel - Class D, 1600 W Max Power - Mono Amplifier - Black - Front_Zoom
    Top comment

    "Great amplifier...Great amplifier with a good looking design. Hard hitting with enough power to push some of the best speakers. "

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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 amplifier...Great amplifier with a good looking design. Hard hitting with enough power to push some of the best speakers. "

    See all customer reviews

    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
  10. Alpine - R-Series Class D Bridgeable Multichannel Amplifier with Variable Crossovers - Black - Front_Zoom

    Product Description

    Listen to your favorite music and podcasts with this Alpine four-channel amplifier . A smart circuit decreases internal noise, while a 46-degree phase shift delivers accurate sound. The selectable bass boost lets you get outstanding low notes. This Alpine four-channel amplifier delivers 100W RMS of sound and increased dynamic range for listening to high-resolution music.
    See all Multi-Channel Amps

    Product Description

    Listen to your favorite music and podcasts with this Alpine four-channel amplifier . A smart circuit decreases internal noise, while a 46-degree phase shift delivers accurate sound. The selectable bass boost lets you get outstanding low notes. This Alpine four-channel amplifier delivers 100W RMS of sound and increased dynamic range for listening to high-resolution music.
    See all Multi-Channel Amps
    See all Multi-Channel Amps
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