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

Signal amplifiers are electronic devices that improve the strength of a signal by making a larger version of it. They are often used in radio receivers and transmitters, but they are also useful in a variety of other applications. Browse the top-ranked list of signal amplifiers below along with associated reviews and opinions.

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  1. Technics - Grand Class Network Integrated Audio Amplifier - Silver - Front_Zoom
    Top comment

    "I am rarely a fan of marketing slogans; however, Technics slogan, rediscover music is quite appropriate for this amplifier. This is a high-quality two channel amplifier, which is designed to provide the best possible sound from many different sources, including video sources over to speakers. ...I am using this amplifier to drive a pair of Kef LS50 Meta speaker along with a Kef KC62 subwoofer. "

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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 am rarely a fan of marketing slogans; however, Technics slogan, rediscover music is quite appropriate for this amplifier. This is a high-quality two channel amplifier, which is designed to provide the best possible sound from many different sources, including video sources over to speakers. ...I am using this amplifier to drive a pair of Kef LS50 Meta speaker along with a Kef KC62 subwoofer. "

    See all customer reviews

    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
  2. Technics - Grand Class Network Integrated Audio Amplifier - Black - Front_Zoom
    Top comment

    "Digital Amplifier with Unlimited Streaming Options...The design incorporates a “digital transmission system which processes signals fully digitally in all stages from input to output” and this design results in the delivery of precise signal transmissions that, in turn, deliver clearer, purer audio. ...I could not be happier with this Amplifier."

    See all customer reviews

    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

    "Digital Amplifier with Unlimited Streaming Options...The design incorporates a “digital transmission system which processes signals fully digitally in all stages from input to output” and this design results in the delivery of precise signal transmissions that, in turn, deliver clearer, purer audio. ...I could not be happier with this Amplifier."

    See all customer reviews

    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
  3. Sonance - DSP 8-130 MKIII AMP - 1160W 8.0-Ch. Digital Signal Processing Power Amplifier (Each) - Black - Front_Zoom

    Product Description

    This line of DSP amplifiers feature SonARC (Sonance Advanced Room Correction), which offers hundreds of EQ presets designed specifically for Sonance speakers available through simple pull down menus. The presets enable effortless DSP without the need for additional hardware, software, and more importantly time. Additionally, should there be a need for further customization, SonARC provides a 10-band parametric EQ to optimize sonic performance in any space. The DSP amplifiers are engineered to be smaller yet more powerful than previous Sonamp models. The resulting power density allows for 130W or 150W in a mere 1U rack space while maintaining a 93% energy efficiency.
    See all Power Amplifiers

    Product Description

    This line of DSP amplifiers feature SonARC (Sonance Advanced Room Correction), which offers hundreds of EQ presets designed specifically for Sonance speakers available through simple pull down menus. The presets enable effortless DSP without the need for additional hardware, software, and more importantly time. Additionally, should there be a need for further customization, SonARC provides a 10-band parametric EQ to optimize sonic performance in any space. The DSP amplifiers are engineered to be smaller yet more powerful than previous Sonamp models. The resulting power density allows for 130W or 150W in a mere 1U rack space while maintaining a 93% energy efficiency.
    See all Power Amplifiers
    See all Power Amplifiers
  4. Sonance - DSP 2-750 MKIII AMP - 1500W 2.0-Ch. Digital Signal Processing Power Amplifier (Each) - Black - Front_Zoom

    Product Description

    The line of DSP amplifiers feature SonARC (Sonance Advanced Room Correction), which offers hundreds of EQ presets designed specifically for Sonance speakers available through simple pull down menus. The presets enable effortless DSP without the need for additional hardware, software, and more importantly time. Additionally, should there be a need for further customization, SonARC provides a 10-band parametric EQ to optimize sonic performance in any space. The DSP amplifiers are engineered to be smaller yet more powerful than previous Sonamp models maintaining an industry-leading energy efficiency. The line of Sonamp DSP amplifiers enables listeners to enjoy the full clarity and output of whatever audio passes through, from MP3 to full High Resolution Audio. Sonamp DSP amplifiers prepare your audio system for what's next.
    See all Amplifiers

    Product Description

    The line of DSP amplifiers feature SonARC (Sonance Advanced Room Correction), which offers hundreds of EQ presets designed specifically for Sonance speakers available through simple pull down menus. The presets enable effortless DSP without the need for additional hardware, software, and more importantly time. Additionally, should there be a need for further customization, SonARC provides a 10-band parametric EQ to optimize sonic performance in any space. The DSP amplifiers are engineered to be smaller yet more powerful than previous Sonamp models maintaining an industry-leading energy efficiency. The line of Sonamp DSP amplifiers enables listeners to enjoy the full clarity and output of whatever audio passes through, from MP3 to full High Resolution Audio. Sonamp DSP amplifiers prepare your audio system for what's next.
    See all Amplifiers
    See all Amplifiers
  5. Marantz - MODEL 50 70W 2-Ch. Stereo Integrated Amplifier - Silver Gold - Front_Zoom

    Product Description

    Elevate your audio experience to new heights with the Marantz MODEL 50 Stereo Integrated Amplifier. This remarkable amplifier delivers an impressive 70W per channel, driven by the powerful class A/B amplification and HDAM SA-3 circuitry. Immerse yourself in the world of vinyl, as Marantz's Musical Phono EQ technology offers minimal distortion and a pristine analog signal path, reviving the warmth and authenticity of your cherished record collection like never before. Audiophiles will appreciate Marantz's current feedback amplification technology, ensuring your audio playback is nothing short of extraordinary, free from the constraints of negative feedback, and filled with unparalleled sonic clarity. Connectivity is a breeze with six versatile analog input options, along with enhanced CD and Phono connectors. Take customization to the next level with the dedicated RCA output for powered subwoofers and the stereo preamp outputs featuring a discrete HDAM design. Tailor your audio setup precisely to your preferences, allowing your music to resonate in a way that suits your unique style. The Marantz MODEL 50 Stereo Integrated Amplifier is the perfect combination of power and precision, taking your audio journey to the next level. Every note comes alive with stunning detail, ensuring that your music transcends the ordinary and becomes an extraordinary auditory experience that you'll cherish for years to come. Elevate your sound with Marantz and make exceptional audio a part of your life.
    See all Integrated Amplifiers

    Product Description

    Elevate your audio experience to new heights with the Marantz MODEL 50 Stereo Integrated Amplifier. This remarkable amplifier delivers an impressive 70W per channel, driven by the powerful class A/B amplification and HDAM SA-3 circuitry. Immerse yourself in the world of vinyl, as Marantz's Musical Phono EQ technology offers minimal distortion and a pristine analog signal path, reviving the warmth and authenticity of your cherished record collection like never before. Audiophiles will appreciate Marantz's current feedback amplification technology, ensuring your audio playback is nothing short of extraordinary, free from the constraints of negative feedback, and filled with unparalleled sonic clarity. Connectivity is a breeze with six versatile analog input options, along with enhanced CD and Phono connectors. Take customization to the next level with the dedicated RCA output for powered subwoofers and the stereo preamp outputs featuring a discrete HDAM design. Tailor your audio setup precisely to your preferences, allowing your music to resonate in a way that suits your unique style. The Marantz MODEL 50 Stereo Integrated Amplifier is the perfect combination of power and precision, taking your audio journey to the next level. Every note comes alive with stunning detail, ensuring that your music transcends the ordinary and becomes an extraordinary auditory experience that you'll cherish for years to come. Elevate your sound with Marantz and make exceptional audio a part of your life.
    See all Integrated Amplifiers
    See all Integrated Amplifiers
  6. Marantz - MODEL 50 70W 2-Ch. Stereo Integrated Amplifier - Black - Front_Zoom

    Product Description

    Elevate your audio experience to new heights with the Marantz MODEL 50 Stereo Integrated Amplifier. This remarkable amplifier delivers an impressive 70W per channel, driven by the powerful class A/B amplification and HDAM SA-3 circuitry. Immerse yourself in the world of vinyl, as Marantz's Musical Phono EQ technology offers minimal distortion and a pristine analog signal path, reviving the warmth and authenticity of your cherished record collection like never before. Audiophiles will appreciate Marantz's current feedback amplification technology, ensuring your audio playback is nothing short of extraordinary, free from the constraints of negative feedback, and filled with unparalleled sonic clarity. Connectivity is a breeze with six versatile analog input options, along with enhanced CD and Phono connectors. Take customization to the next level with the dedicated RCA output for powered subwoofers and the stereo preamp outputs featuring a discrete HDAM design. Tailor your audio setup precisely to your preferences, allowing your music to resonate in a way that suits your unique style. The Marantz MODEL 50 Stereo Integrated Amplifier is the perfect combination of power and precision, taking your audio journey to the next level. Every note comes alive with stunning detail, ensuring that your music transcends the ordinary and becomes an extraordinary auditory experience that you'll cherish for years to come. Elevate your sound with Marantz and make exceptional audio a part of your life.
    See all Integrated Amplifiers

    Product Description

    Elevate your audio experience to new heights with the Marantz MODEL 50 Stereo Integrated Amplifier. This remarkable amplifier delivers an impressive 70W per channel, driven by the powerful class A/B amplification and HDAM SA-3 circuitry. Immerse yourself in the world of vinyl, as Marantz's Musical Phono EQ technology offers minimal distortion and a pristine analog signal path, reviving the warmth and authenticity of your cherished record collection like never before. Audiophiles will appreciate Marantz's current feedback amplification technology, ensuring your audio playback is nothing short of extraordinary, free from the constraints of negative feedback, and filled with unparalleled sonic clarity. Connectivity is a breeze with six versatile analog input options, along with enhanced CD and Phono connectors. Take customization to the next level with the dedicated RCA output for powered subwoofers and the stereo preamp outputs featuring a discrete HDAM design. Tailor your audio setup precisely to your preferences, allowing your music to resonate in a way that suits your unique style. The Marantz MODEL 50 Stereo Integrated Amplifier is the perfect combination of power and precision, taking your audio journey to the next level. Every note comes alive with stunning detail, ensuring that your music transcends the ordinary and becomes an extraordinary auditory experience that you'll cherish for years to come. Elevate your sound with Marantz and make exceptional audio a part of your life.
    See all Integrated Amplifiers
    See all Integrated Amplifiers
  7. Cloud Microphones - Cloudlifter 1.0-Ch. Microphone Amplifier - Blue/White - Front_Zoom
    Top comment

    "I would prefer a gain control knob on this anyway as the output signal was too hot for my mixer preamp."

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    Product Description

    Enhance your vocal performances with this Cloud Microphones Cloudlifter microphone activator. The simple design offers easy plug-and-play installation, and the discrete JFET circuitry ensures clean, natural-sounding audio transmissions. This Cloud Microphones Cloudlifter microphone activator fits comfortably in gear bags and lets you enhance your sound with up to 25dB of gain.
    See all Power Amps
    Top comment

    "I would prefer a gain control knob on this anyway as the output signal was too hot for my mixer preamp."

    See all customer reviews

    Product Description

    Enhance your vocal performances with this Cloud Microphones Cloudlifter microphone activator. The simple design offers easy plug-and-play installation, and the discrete JFET circuitry ensures clean, natural-sounding audio transmissions. This Cloud Microphones Cloudlifter microphone activator fits comfortably in gear bags and lets you enhance your sound with up to 25dB of gain.
    See all Power Amps
    See all Power Amps
  8. AudioControl - 6-Channel Active Line Output Converter with Summing - Black - Front_Zoom
    Top comment

    "The Audio Control LC6i is a line output converter that allows you to connect an aftermarket amplifier to a factory audio system. It is designed to improve the sound quality of your car's audio system by cleaning up the audio signal and providing more control over the sound. "

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    Product Description

    Easily add an aftermarket amplifier to your vehicle’s factory audio system with this 6-Channel Active Line Output Converter with Summing by AudioControl. The LC6i converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier without replacing your factory radio. This six-channel line output converter can also be used to retain your vehicle’s OEM amplified audio system when replacing your factory radio.
    See all Amplifiers
    Top comment

    "The Audio Control LC6i is a line output converter that allows you to connect an aftermarket amplifier to a factory audio system. It is designed to improve the sound quality of your car's audio system by cleaning up the audio signal and providing more control over the sound. "

    See all customer reviews

    Product Description

    Easily add an aftermarket amplifier to your vehicle’s factory audio system with this 6-Channel Active Line Output Converter with Summing by AudioControl. The LC6i converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier without replacing your factory radio. This six-channel line output converter can also be used to retain your vehicle’s OEM amplified audio system when replacing your factory radio.
    See all Amplifiers
    See all Amplifiers
  9. Metra - Power/Ground Distribution Block - Black - Front_Zoom
    Top comment

    "It did its job perfectly, and provides stable power to both my amplifiers....Bought the Metra - Power/Ground Distribution Block ( Black) to connect 2 car amplifier to a single ground. Works as described. "

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    Product Description

    Complete electrical circuits effectively from your vehicle's battery to peripherals with this Metra three-position ground distribution block. The plastic housing offers lasting use, while the real brass construction delivers signals to most single-DIN and double-DIN aftermarket stereos. With input for 0 AWG wire and two outputs for 4 AWG wires, this black Metra three-position ground distribution block supports flexible connections.
    See all Fuses & Capacitors
    Top comment

    "It did its job perfectly, and provides stable power to both my amplifiers....Bought the Metra - Power/Ground Distribution Block ( Black) to connect 2 car amplifier to a single ground. Works as described. "

    See all customer reviews

    Product Description

    Complete electrical circuits effectively from your vehicle's battery to peripherals with this Metra three-position ground distribution block. The plastic housing offers lasting use, while the real brass construction delivers signals to most single-DIN and double-DIN aftermarket stereos. With input for 0 AWG wire and two outputs for 4 AWG wires, this black Metra three-position ground distribution block supports flexible connections.
    See all Fuses & Capacitors
    See all Fuses & Capacitors
  10. AudioControl - 2-Channel Active Line Output Converter and Line Driver - Black - Front_Zoom
    Top comment

    "I went from a Metra LOC and this thing makes one heck of a difference, I can play my subs louder for longer since this thing has a light on it to tell you if your signal is clipping, the instructions were super clear, and I loved not having to run a separate line for remote on, my old LOC used to play this bouncing bass note when I turned the car off and back on, and would pop when I turned it off, this has a feature that stops that from happening and it has been so nice. "

    See all customer reviews

    Product Description

    Easily add an aftermarket amplifier to your vehicle’s factory audio system with this 2-Channel Active Line Output Converter and Line Driver by AudioControl. The LC1i converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier without replacing your factory radio. This two-channel line output converter and line driver can also be used to retain your vehicle’s OEM amplified audio system when replacing your factory radio.
    See all Amp Accessories & Installation Parts
    Top comment

    "I went from a Metra LOC and this thing makes one heck of a difference, I can play my subs louder for longer since this thing has a light on it to tell you if your signal is clipping, the instructions were super clear, and I loved not having to run a separate line for remote on, my old LOC used to play this bouncing bass note when I turned the car off and back on, and would pop when I turned it off, this has a feature that stops that from happening and it has been so nice. "

    See all customer reviews

    Product Description

    Easily add an aftermarket amplifier to your vehicle’s factory audio system with this 2-Channel Active Line Output Converter and Line Driver by AudioControl. The LC1i converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier without replacing your factory radio. This two-channel line output converter and line driver can also be used to retain your vehicle’s OEM amplified audio system when replacing your factory radio.
    See all Amp Accessories & Installation Parts
    See all Amp Accessories & Installation Parts
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