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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 6 Showing 101-119 of 119 reviews
  • Rated 5 out of 5 stars

    Booming sound

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

    The technicians at Best Buy installed my car radio and fixed a lot the previous companies had botched. They recommended this equipment and it works really well!

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

    Nice amplifier

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

    I like this amplifier because it's so small and you can hide it inside your car and does a really good job I'm happy with my amplifier

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

    Adds to sound quality

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

    Performance is wonderful. It has evened out the performance of my front and rear speakers.

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

    Great compact amp

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

    Have it powering two Polk components in the front and has wonderful overall sound/tone quality. At least for a two door pick-up. Can be placed anywhere (within reason) as it doesn't seem to displace a whole lot of heat

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

    Great When Its Installed & set Up By Geeksquad

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

    Geek Squad installed & set it up. They did a great job Thank You

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Probably good for mids

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

    Has 2 rca inputs, was not what i needed. 2 amps probably good for mids and highs

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

    perfect

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

    needed 8 channels for car bought this and now I don't have static

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

    Great kicker

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

    This is a great product I installed in my tacoma 09

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

    Its an amp

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

    I havent had a chance to install it yet, but knowing Kicker brand I am sure it will perform to expectations.

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

    good starter amp

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

    Service guy was great. Store didn't have on stock, sales gal was unsure of the product. I installed it myself

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

    good quality for the price

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

    That all I got to say about that. As my good friend Forest, Forest Gump would say.

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

    Garbage

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

    I hooked it up and it sounded like garbage. Replaced it with MB Quartz, much better sound quality.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Size, Sound quality
    Cons mentioned:
    Heat

    Rated 5 out of 5 stars

    Excellent. I have four...

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

    I installed two in my Toyota over a year ago. Along with a powered 10" Kicker sub, I bridged both amps to drive Kicker 6X9s. Four total speakers, a pair front in the doors and a rear pair. Mounted amps under front seats. Added another of these CX300.4s for four Kicker tweeters. Overkill for some tweeters, but matched my gear. So I have the sub and three of these amps and four 6X9 and four - one inch domes in the car. Kenwood head unit. Rocks. I have pounded it and it still sounds as good as day one. Just bought another of these same 300.4s for the boat. Bridged for another pair of Kicker 6X9s. Just an iSimple interface driving it on the boat. Just stereo off Apple lightning. Still need sub for boat... The amps work great. Sounds great. Gets warm, not hot. (I did let them get hot when I accidentally had the gain up too high) Happy with all four. Would buy more if I could figure a reason...

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Not impressed

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

    The amp did not provide enough channels needed for my SUV. It was returned.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Great 4 Channel Amplifier

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

    Replaced existing system with a new system and chose this Amplifier. Had it installed by Geek Squad and they did a good job. I played around with the settings and tuned it all in. It does get hot at high volume and it sounds very, very, nice. Fronts: 5 1/4 Kickers, Rear: 6x9 Kickers with 8 inch Mid Bass speakers and dual 12 subs on a separate mono amp. Love my music and this system gets the job done nicely.

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

    Rated 5 out of 5 stars

    Kicker has a kicking sound

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

    I use this amp to power my 4 door speakers. The sound is louder than when it was hooked up to the stereo. This has a clean sound that will fill your car up with nice sounds as long as you match the output to your radio.

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

    Rated 5 out of 5 stars

    Quality amp on a budget!

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

    I took advantage of a package deal--amp, amp kit, and install. Works great and takes up only about a 1/4 of the storage tray behind the truck seat.

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

    Rated 5 out of 5 stars

    Exceeded my expectations

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

    This amp has performed well and drives my infinity speakers perfectly!

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

    I recommend kickers

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

    Best one I've had I highly recommend getting one haven't had any problems

    I would recommend this to a friend