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Customer Ratings & Reviews

Your price for this item is $449.99
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The comparable value price is $899.99

Customer reviews

Rating 4.8 out of 5 stars with 135 reviews

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Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers appreciate the Dynamo 800X subwoofer's exceptional sound quality and strong bass response, frequently praising its clean and powerful output. Many also highlight the subwoofer's surprisingly compact size and relatively easy setup, along with the convenient wireless capabilities and user-friendly app for adjustments. The ease of use and powerful performance are also frequently cited as positive aspects.

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 2 Showing 21-40 of 135 reviews
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    From my phone? What?

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

    Love the ability to use wireless and to make changes through my phone. Of course the sound is Martin Logan standard.

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

    Rated 5 out of 5 stars

    ML subwoofer - great sound

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

    Replaced my older subwoofer. This ML subwoofer is too good and along with a new pair of ML speakers, the sound effect is superb. The connection at the back seems to suggest that is only applicable to one speaker but with an undocumented feature, it can be used to drive 2 speakers.

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

    Rated 5 out of 5 stars

    Great speaker

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

    We purchased the wireless kit so we weren't restricted on where we could place this speaker. It provides great low-end sound without overpowering the room.

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

    Rated 5 out of 5 stars

    ML Dynamo 800X

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

    Love this sub! Fantastic sound and easy setup with ARC, but still learning and adjusting settings. Cleaner and less boomy than my Sunfire D8. I especially like easily changing settings from Movie to Night.

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

    Rated 5 out of 5 stars

    Subwoofer for the perfectionist

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

    The Martin Logan 800X is outstanding. Connect it via LFE in Auto mode or switch to App mode and Bluetooth connect it to your iPhone via an app and control all the options of the 800X. The performance is outstanding for a medium to large room. If used in a small room you might have to crank it down a little. Ut has made a dramatic difference to our TV viewing. It is connected to a Denon X2600H AVR. You will not be disappointed with this Subwoofer.

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

    Rated 5 out of 5 stars

    Quality product

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

    High quality. Great sound. Fills the room. Easy hookup

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

    Rated 5 out of 5 stars

    Great bass

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great sound! Really adds to tv sound. I love hearing a solid bass line that is not muddled.

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

    Rated 5 out of 5 stars

    FEEL the Music

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

    After nearly 7 years of service, my previous MartinLogan subwoofer died, and I replaced with another one of the same make and model. So far, so good. I don't have it hooked up wirelessly - it's fine as it is. I like how the little legs lift the unit, so the speaker can fire. Great sound.

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

    Rated 5 out of 5 stars

    Very Happy

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

    Very happy with my purchase. The sound is incredible as well as the size, it’s little over 1ft by 1 ft, highly recommended,, you will not be disappointed

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

    Rated 5 out of 5 stars

    I live MartinLogan products.

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

    Excellent sound quality. Easy to install and tune.

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

    Rated 5 out of 5 stars

    Great technology

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

    Great Subwoofer and very easy set up to conform with the room acoustics. I purchased two for a wider sound stage and I am considering a third.

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

    Rated 5 out of 5 stars

    MartinLogan - Subwoofer

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Sound quality excellent. I have to turn it down or the whole room shakes.

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

    Rated 5 out of 5 stars

    Killer sub

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

    Wow just wow, this sub is killer, i wish I had bought two. Easy setup, deep clean bass

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

    Rated 5 out of 5 stars

    Great Sub..

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

    I love the deep rich sounds compared to other subs I have owned. I also liked the app for my phone is I want to adjust it.

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

    Rated 5 out of 5 stars

    Fantastic sub

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

    Speaker performed as advertised. Got a great price on an "open" box item. Martin Logan (2nd purchase) makes quality products and works as advertised but expensive. Very happy with the sound and convenience to use as front-firing or placed on the floor. I have mine placed at ear level as a front-firing speaker matched with ML ESL floor speakers. It can also be used as a Wi-Fi speaker so very compatible with most situations.

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

    Rated 5 out of 5 stars

    Clean base

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

    Went with two 800X 10” instead of one larger 1100X. More power with better room coverage for only $300 more. Clean base sound. We like the Martin Logan sound.

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

    Rated 5 out of 5 stars

    When you want to feel the movie and not just hear

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

    Amazing! Never a moment the boom doesnt come through. First movie we tried was Independence Day and these two subs handled every explosion beautifully! Very true to what I experienced when in the theater with other movies also.

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

    Rated 5 out of 5 stars

    Great speaker

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

    Sounds good easy to install. Would recommend. Very good quality.

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

    Plenty of wattage for a 15 x 20 room!

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

    One thing should be stressed is you need the adapter that has it's own app. Without it, you always be fiddling with the back panel controls. And I had to change to a forward firing speaker. If you have it facing the floor, (we have hardwood floors) you will vibrate the floor which is very annoying. All of my 5.1 speakers are Martin Logan. The quality is awesome!

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

    Rated 5 out of 5 stars

    Rock your house

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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.

    This sub will rock your house. I didn’t know this at the time but if you want to use this wirelessly you are going to need the adapter that cost $200

    I would recommend this to a friend
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