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Customer Ratings & Reviews

Your price for this item is $199.99

Customer reviews

Rating 4.7 out of 5 stars with 61 reviews

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  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.4 out of 5 stars

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98%would recommend to a friend

Customers are saying

Customers are impressed with the Key Smart 180W Class D Multichannel Amplifier's sound quality, saying it significantly enhances the performance of factory speakers. They also appreciate its compact size, noting that it is easy to hide and wire up. Installation is considered simple and straightforward.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 3 Showing 41-60 of 61 reviews
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Works as advertised

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I would recommend to all. Sounds great with four Rockford three ways.

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Bang

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This little amp packs a punch, I was surprised by the sound once it was installed

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Perfection at its best

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This amplifier added a great clear perspective to the car sound system

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Aamp

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This was easy to install and sounds great for the money

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Great sound

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great sound and clarity since adding the kicker amp to my stereo system

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Excellent Amplifier

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent Amplifier!!! Sounds great!!! Perfect sound!!!

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 4 out of 5 stars

    Increase in volume and clarity

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wife wasn’t quite satisfied with the infinity system that came with her new car. This little guy fixed her up immediately

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Smooth amp

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Adds the right punch for frequency clarity. Get it.

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Good little amp

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great sound for the size and made the music clear.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    I’m happy

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Satisfied with my purchases,and the work performed.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great value

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great value amplifier. It works well with Kicker speakers.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Amp

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a good product it just wasn’t powerful enough for what I needed it for.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Everything was great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Everything went great great installers really know what tobdo

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Lil' Powerhouse

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The DSP alone is worth the cost. Very happy with it.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Amplifier

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Awesome Amplifiers I love mine works very good....

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great amp!

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I got this amp for my door speakers and it works great!

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good amp

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I kept my factory radio. Replaced my factory door speakers. This amp got the job done.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Enjoyable product. Sounds nice

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The tech was very informative on explaining what this product was capable of.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Problems

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Nothing but problems from this amp ... Bought it before covid ...shipped to my house .... it was an open package... but gave Best Buy benefit of the doubt and let them install it.... Then covid hit now im stuck with a defect amp.... Really disappointed with with this amp and it still doesnt work ...

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Not enough power for my speakers

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wish this amp would have worked for me I'm just pushing too much to my speakers so it never worked right for me but may be great for your application.

    I would recommend this to a friend