Skip to content
Main Content

Customer Ratings & Reviews

Your price for this item is $949.99

Customer reviews

Rating 4.9 out of 5 stars with 76 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.9 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend
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 1 Showing 1-20 of 76 reviews
  • Pros mentioned:
    Blending

    Rated 5 out of 5 stars

    Great choice for small or medium listening rooms

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

    I purchased the KEF Kube 10b to complement a pair of LS50 Metas in my 2-channel setup. I'm very pleased with the performance as well as build quality and can highly recommend the Kube 10b in small to medium rooms especially for music. It wasn't difficult to find the right location in the room as well as "dialing in" the settings regarding low pass and type of EQ (three choices including on wall, in room, etc) to achieve the best blending with the LS50s (may incorporate a MiniDSP later to fine tune). My guess is that it would be a good choice for HT as well but you might need two to get the best result in larger rooms. For "bass heads" or high volume HT applications it might make more sense to purchase a ported subwoofer or two or plan on two of these or the 12b models.

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

    Rated 5 out of 5 stars

    Tight and musical

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

    I have a set of Definitive Technology Mythos that I purchased in 2004. I set them up in my home gym, but needed an appropriate subwoofer to compliment them. The KEF Kube8b was a wonderful choice. The room is the size of a large bedroom. The Kube8b has plenty of punch, while blending beautifully with the DefTecs.

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

    Team KEF!

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

    The KEF R-Series packages are worth every penny. The quality for music lovers exceeds expectations. I have also added the Center and towers to the set. Comes in many colors - easy to install. Top notch! Highly recommend!

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

    Decent value

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

    You don’t even know it’s there until it’s there! Packs a boom and we like it

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

    Rated 5 out of 5 stars

    Powerful

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

    Great subwoofer that is very understated in appearance in an open space given its size and sound performance.

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

    Rated 5 out of 5 stars

    Very Pleased wit this Sub

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

    The Kube 12 is impressive. I really like the fact that is is a sealed (not ported) enclosure. The bass is very tight and musical, not just a boom-boom box. However, during action movies, it shakes my whole room. One really nice feature is that is has dual inputs (i.e. line and speaker level). By using both (with a single RCA cable and 2 speaker cables), I get the benefit of the LFE "X.1" channel for movies, while for stereo music, it uses the speaker level input, which is best for music, where there is no LFE channel. I have it sitting in a corner, and it sounds great.

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

    Rated 5 out of 5 stars

    KEF quality remains high.

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

    Balanced and even, but booms when you need it. My music is even high/mid/low. The KEF Kube 12" is subtle, yet noticeable. For movies, the subwoofer can rattle things and I had to turn it down a little.

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

    Rated 5 out of 5 stars

    Outstanding!

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

    I use this KEF subwoofer in a big room and it is way more than enough. I highly recommend because of its compact size and quality. This is a very high end sounding piece of equipment. I also have a KEF subwoofer in our bedroom set up and it works great there as well.

    I would recommend this to a friend
  • Pros mentioned:
    Size
    Cons mentioned:
    Auto on/off

    Rated 5 out of 5 stars

    Little Boomer

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

    I like the size. It's a little larger than a one foot cube but produces a tremendous low frequency sound that is not boomie and is capable of filling a 14x22 foot room. I don't like the fact that it does not have auto on/off capability. Other than that it is great.

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

    Little space, big boom

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

    Just what I needed to add to my bookshelf speakers. Nice and unobtrusive.

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

    Rated 5 out of 5 stars

    Small but mighty

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

    Very impressed with the kef Kube 8b subwoofer. Perfect for a small to midsize room. This sub packs a punch and produces low but tonally controlled bass notes. Sounds great paired with my KEF LS50 wireless setup. Definitely worth it.

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

    Rated 5 out of 5 stars

    Great sound

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

    Wonderful, accurate, room-filling sound in a great looking package.

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

    Pleasantly surprised!

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

    I added this to go with the KEF floorstanding and center channel speakers I purchased. Was initially concerned that the KUBE8 wouldn't be strong enough to fill my 24 x 17 open living room, but I was pleasantly surprised with this subwoofer. I had listened to SVS and a few others in the magnolia room and was leaning towards one of the other brands. Once I got this into my room, it filled the room with more bass than I was expecting from this little sub. The little KEF KUBE8 did a great job for me and I'll be keeping it!

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

    Great sub

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

    Great sub, great addition to my stereo system with plenty of articulation at lower frequencies without having to turn it up to 11

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

    Rated 5 out of 5 stars

    KEF Subwoofer

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

    Very nice add to home theater since old sub was broken. Listening to the KEF knew it was excellent albeit expensive. Encourage all to go in to store and sample.

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

    Movie theater at home

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

    The Best Buy customer rep was 100 percent correct when he recommended my recent purchase of this speaker it puts me in the movie theater. Thank you sir.

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

    Rated 5 out of 5 stars

    Great looking and options

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

    Sleek design and has the option to become wireless.

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

    Deep tight bass

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

    Deep tight bass, plenty of power to fill 300-400 sq. ft rooms. Auto on/off function is not reliable, but by-passable.

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

    Rated 5 out of 5 stars

    Perfect size woofer

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

    This is the perfect size woofer for a medium size room excellent quality great sound

    I would recommend this to a friend
  • Best Buy Employee

    Rated 5 out of 5 stars

    Great bass

    |
    Best Buy Employee
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great sub for the man cave, fills the room just right

    I would recommend this to a friend