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Customer Ratings & Reviews

Your price for this item is $179.99
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The comparable value price is $199.99

Customer reviews

Rating 4.7 out of 5 stars with 119 reviews

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97%
would recommend
to a friend

Customers are saying

Customers value the CX-Series CX300.4 amplifier for its exceptional sound quality, powerful performance, and compact size. Many customers have praised its ability to deliver clear and crisp audio, with one customer saying, "Sound quality good and no issues so far." The amplifier's compact design makes it easy to install in various vehicles, as noted by a customer who said, "Amp works fantastic, and installation done excellent."

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 119 reviews
  • Rated 5 out of 5 stars

    crisp

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

    Put these in with a kicker 4 channel and another set of coaxial speakers and there are things in a song I haven't heard before. Nice and crisp highs and mids without upgrading the price to a crossover component set

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

    Rated 5 out of 5 stars

    great for dodge pickup

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

    Had installed and sounds great in truck would do over again

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

    Amp works great.

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

    Amp works fantastic, and installation done excellent

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

    Great amp, runs pretty warm

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

    Using it bridged to drive a set of 6 1/2" components. It works great, love the midbass that I get with it over the 25x2 amp I had before. However, it does tend to run quite warm. As it's class AB, this doesn't surprise me and it doesn't seem to cause any issues. Just a warning that you mount in someplace that has adequate cooling (i.e. not underneath a seat).

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

    Rated 5 out of 5 stars

    Clean, compact power

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

    Using this to run 4 coax speakers with a Kicker mono sub amp. Plenty of headroom, clean sound, no distortion at high volume(with gains adjusted correctly)

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 4 out of 5 stars

    ample power for a vehical

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

    this idem supplies ample power for small cars. would have preferred it to be shorter in length.

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

    Rated 4 out of 5 stars

    Good Amp

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

    My sound system sounds great with the addition of this amp!

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

    Rated 4 out of 5 stars

    Love it

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

    Love it! Reliable would recommend, goes pretty loud

    I would recommend this to a friend
  • Pros mentioned:
    Size

    Rated 4 out of 5 stars

    amp

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

    Good, works great. Size is not too big able to hide it

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

    Great Amp for the money

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

    I was needing an amp and i saw this amp so i gave it a try.. It turned out to be a great amp for the money..

    I would recommend this to a friend
  • Pros mentioned:
    Power, Size

    Rated 5 out of 5 stars

    Great product

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

    Great overall capacity is great also powerful and compact nice!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Sound quality

    Rated 5 out of 5 stars

    great sound. highly recommend

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

    Awesome sound and very easy to install. Anyone buying this will be very happy.

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

    Kicker cx300.4

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

    Completely awesome amplifier works far better than any amplifier that I have ever owned. Get this amplifier and you will not be disappointed.

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

    Amp

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

    Best Buy replaced this amp free of charge as it was defective and is why I only deal with Best Buy on car stereo equipment

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

    System sounds great!

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

    Very, very satisfied , would certainly recommend this to others. Great value.

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

    good amplifier

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

    everything good so far with my new amplifier there's only so much you can say when forced to say something

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

    perfect for 09 civic coupe

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

    perfect for 09 civic coupe great install awesome customer service

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

    good amp

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

    It's a great amp makes your door speakers louder then you need them with awesome sound

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

    Rated 5 out of 5 stars

    Perfect amount of sound

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

    This amp was just what I needed to complete my system. The head unit just didn't have enough power, and my speakers always sounded muffled and distorted. What a difference this amp made. Now my speakers sound crisp and clean and plenty loud for me.

    I would recommend this to a friend
  • Cons mentioned:
    Heat

    Rated 5 out of 5 stars

    good amp

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

    Walked into bestbuy store and this was sitting on a table with 50% of tag on it, i thought why not. it works and makes my stock speakers louder since my kenwood head unit would get hot and not function properly sometimes. just need better speakers

    I would recommend this to a friend