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Customer Ratings & Reviews

Your price for this item is $599.99
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Customer reviews

Rating 4.5 out of 5 stars with 152 reviews

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Rating by feature

  • Value

    Rating 4.2 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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Cons mentioned filter

90%would recommend to a friend

Customers are saying

Customers praise the SuperCube 4000 8" 1200-Watt Powered Subwoofer for its excellent sound quality, impressive bass, and powerful performance, especially considering its compact size. Many reviewers highlight the subwoofer's great value for its price. The small size is repeatedly mentioned as a positive attribute. Positive comments also focus on the clean power output and overall system enhancement.

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 5 Showing 81-100 of 152 reviews
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    This subwoofer is RIDICULOUS!!!

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

    Definitive Technology is seriously the best at what they do. This thing shakes my whole house. Absolutely incredible for action movies.

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

    Rated 5 out of 5 stars

    Awesome addition.

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

    I guess I'm a bit biased but I absolutely love DefTech. Looks nice and sounds great.

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

    Rated 5 out of 5 stars

    Awesome sub for Home theater

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

    Bought this for home theater set up and love it! Rocks the room and makes you feel like you are in a movie theater.

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

    Definitive Tech Supercube 4000

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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.

    Definitive Tech recommended setting my Def Tech 8060 towers and center channel to large to get the best sound out of my new Supercube 4000. My system sounded too " boomy"that way. So I set my center channel speaker and towers to small and lowered the crossover until I got it just right. The new sub with the remote was the easy part.

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

    Rated 5 out of 5 stars

    Plenty powerfully enough to fill a 2-story room

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

    Great value and excellent sound. I cannot imagine needing anything more than this.

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

    Rated 4 out of 5 stars

    Value

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

    Some serious space in a very small package. Good bang for your buck

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

    Rated 5 out of 5 stars

    Incredible

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

    This Def Tech subwoofer is phenomenal and I would recommend it to anybody that lives good clear basS

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

    Rated 5 out of 5 stars

    Deftech

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

    Great space saving sub sound is great. -----------------

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

    Rated 5 out of 5 stars

    Good Sub

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

    This is a good subwoofer. I replaced a sub that came with my system and it is plenty loud for my needs

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

    Rated 5 out of 5 stars

    Great sound

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

    Great sound. Product makes our movie experience better.

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

    Rated 5 out of 5 stars

    Great speaker!

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

    Great speaker for the size!! My room required a bigger speaker but this speaker is great.

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

    Rated 5 out of 5 stars

    Wow

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

    The subwoofers nothing short of amazing it's got great powerful sound amazing amazing bass

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

    Rated 5 out of 5 stars

    Serious!

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

    This sub is awesome, gives really good base, sounds really good when watching movies! Or music!

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

    Rated 4 out of 5 stars

    Quality brand

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

    Great sound. For a decent price. Bought this for my home theatre

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

    Rated 4 out of 5 stars

    Great subwoofer

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

    I brought supercube 2000 and supercube 4000 ,supercube 4000 is amazing

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

    Rated 5 out of 5 stars

    Great sub woofer

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

    This subwoofer is fantastic. Very small space required for it as well.

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

    Rated 5 out of 5 stars

    super sub

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

    this sub is really accurate, artillery blasts are tight, not just a big boom.

    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.

    I’m very happy with the sound that this small sub puts out.

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

    Rated 5 out of 5 stars

    Good sound

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

    The subwoofer works great. Adds great sound to the room.

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

    Rated 1 out of 5 stars

    Loud, impactful, sloppy

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

    Very impressive loudness for a box this size. I have a difficult room acoustically - 14 ft cathedral ceilings and an open floor plan, also don't want a speaker system to be the focal point, so the small size of this sub attracted me, as did the sub-sonic performance (not many subs go below 20 hz). The loud pounding during loud special effects was impressive, but during quiet periods, just dialogue, there was an underlying low bass presence that was excessive and unnatural. I returned it, accepted the laws of physics, and am now using 2 subwoofers, 10" drivers, 300 watt amps, ported, and am getting beautiful, precise low bass performance.

    No, I would not recommend this to a friend
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