Skip to content
Main Content

Customer Ratings & Reviews

Your price for this item is $599.99
Clearance
Save $199.99
The comparable value price is $799.98

Customer reviews

Rating 4.5 out of 5 stars with 152 reviews

Rating Filter

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

Pros mentioned filter

Cons mentioned filter

90%would recommend to a friend

Customers are saying

Customers are satisfied with the SuperCube 4000 8" 1200-Watt Powered Subwoofer for its compact size and powerful sound. Many customers were impressed with the deep bass and power of the subwoofer, while others appreciated the convenience of the remote control. The sound quality is also considered 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 152 reviews
  • Pros mentioned:
    Bass, Sound quality

    Rated 5 out of 5 stars

    Fantastic sub

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

    Replace Polk sub with this, wow two worlds apart! Very compact with a gigantic punch! Great sound, Definitive technology always make great speakers

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

    Rated 5 out of 5 stars

    Compact but worth it at this price

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

    Worth the money. Compact but effective. I picked it up on sale. I am loving it.

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

    Rated 4 out of 5 stars

    Good not great

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

    Good overall sound. Not quite as loud as I would have expected, it sounded better at the store then when I got it home and hooked up

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

    Definitive Tech Supercube 4000

    |
    |
    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:
    Value

    Rated 4 out of 5 stars

    Value

    |
    |
    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:
    Power, Size

    Rated 5 out of 5 stars

    Great bass!

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

    Incredible Sub!!!! Adds power to the system and in such a small footprint!

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

    Rated 4 out of 5 stars

    Nice if you can get it for 500$

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

    I replaced my old klipsch sub 10 with this. My wife loves that it is so small and modern looking. Didn't hit as hard as I expected but it is a physically smaller sub so I understand. Quality seems a lot better then my klipsch. The wireless adapter has been discontinued for quite some time. The only I could find for sale was about 200$.

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

    Awesome Sound

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

    Super Cube is one good addition for my entertainment room, but if your room size is small it will be really overwhelming.

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

    Rated 5 out of 5 stars

    Definitive Technology has quality products

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

    I have recently completed my Def tech surround sounds. 3 xtr 50 and 2way speakers for the surrounds. After adding the sub, it compliments the entire set up and completes the system. I compared it to Martin logan around the same price and power along with other brands, however in regards to sound quality, nothing came close in my opinion.

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

    Rated 5 out of 5 stars

    Good subwoofer

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

    Excellent sound. Small enough to make hide. Great quality

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

    Rated 5 out of 5 stars

    Insert thumbs up emoji

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Holy Atom Bomb Batman, this SuperCube sounds massive. I have a huge two story open living room, with open floor plan beyond. This guy can be as pounding and it can be subtle. So crisp. Have running thru Yamaha Receiver teamed with DT Gems (first gen) Couldn't be happier....well maybe two of these guys would..

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

    Rated 5 out of 5 stars

    Exceeds expectations

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

    Compliments my stereo components nicely. It performs like a much larger subwoofer

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

    excellent

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

    This subwoofer was an excellent addition to my home theater. It replaced an old Paradigm that was bigger but not near the impact this has.

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

    Rated 5 out of 5 stars

    Really good subwoofer.

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

    I like the supercube 4000, really good deep bass, and powerfull.

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

    Great subwoofer

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

    Great subwoofer. Definitive great stuff . Sounds great In smaller package. Remote control level awesome.

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

    Rated 1 out of 5 stars

    Fake Specs

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

    I purchased this on the recommendation of a Magnolia associate after finding out that the sub woofer I was looking for was not carried by any of the stores in my area. I had the magnolia person give me a demo of the unit, which they didn't know how to operate I realized after I read through the manual. Putting it in place, it has really low range into the lower frequencies which is what I was looking to get a sub for as my speakers were good down to 70hz. The power is no where near 1200w as the associate and specs mentioned, more like 100 or 200w. The associate and sub information both said that 1200w was the RMS power, this is an outright lie. I will never buy any speakers from this brand again, their completely made up specs show when you go to actually use the equipment. When I asked about the performance of the equipment not being up to spec, I was told to upgrade to their next model or to add another sub. You should have seen the looks when I returned it too, like I was a criminal of some kind for wanting it to live up to what was promised. If you don't want returns then don't sell products that blatantly lie about their performance.

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

    Bang for the buck

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

    This Sub is bang for the buck, was recommended by the Mag rep I talked to and its just a great addition to my home theatre system which mainly consists of Martin Logan speakers.

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

    Rated 5 out of 5 stars

    Great Sound for such a small sub!

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

    I didn't have a lot of room for a big sub so I was limited to what I could go with in terms of footprint. Definitive Tech didn't disappoint. These a definitely SuperCubes. When I added the SuperCube to the LFE output of my receiver it made such an improvement to the depth of the sound in my living room. I run it at about 1/2 volume and it delivers awesome bass.

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

    This little cube is an awesome monster

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

    I upgraded supercube 2000 with the 4000 a few weeks ago and I'm extremely happy with the upgrade. The supercube 4000 completely fills in the mid and low range even at half power. The sound is clean and natural. Having the remote is a nice option

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

    Rated 5 out of 5 stars

    Amazing product

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

    Small enough where cats can’t use it as scratching post. Bass is tight but delivers a lot of special effects. Makes the floor and walls move. Pairs well with rest of system. Hooked up to marantz receiver. Deftech pro1000 fronts and rears with procenter2000.

    I would recommend this to a friend
Sponsored