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Customer Ratings & Reviews

Your price for this item is $324.99
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The comparable value price is $499.99

Customer reviews

Rating 4.7 out of 5 stars with 149 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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95%would recommend to a friend

Customers are saying

Customers consistently note the Dynamo 400 subwoofer's excellent sound quality and strong bass response. Many appreciate its compact size, making it suitable for smaller spaces while still delivering powerful audio. Positive feedback also highlights its ease of setup and impressive power output for its size. Overall, the product receives high praise for its audio performance and convenience.

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 101-120 of 149 reviews
  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Subwoofer makes a difference

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

    The subwoofer makes a big difference when watching action tv and movies. I like the volume control on the back.

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

    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.

    Martin Logan are making great products.I love the bass that sub woofer produces.A outstanding sub woofer.

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

    Rated 5 out of 5 stars

    Big difference with this subwoofer.

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

    This item makes a huge difference in the quality of the surround sound entertainment system.

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

    Motion series

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

    Absolutely love this subwoofer and having two isn't two much. I owned a 12" Polk prior. I own a complete Martin Logan speaker system. I waited 2 years for any of the Martin Logan to go on sale. Great Magnolia room Tech support and advice.

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

    Rated 5 out of 5 stars

    Great sound easy setup

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

    Part of my overall home theatre that delivers the base sound for movies without being overbearing

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

    Nice compact subwoofer with good sound

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

    Works great. Got it to replace something and it works great with my surround sound system.

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

    Rated 5 out of 5 stars

    Movie theatre quality

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

    Subwoofer offers booming audio that makes any room feel like you're at the movies.

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

    Rated 5 out of 5 stars

    Great buy!!

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

    Great sound, very clear. Surprised at what you get.

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

    Rated 5 out of 5 stars

    Fantastic

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

    Great sub! Powered. Adjustable levels. Deep/rich sound great for all tunes/movies

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

    sound

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

    very good.................................................................

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

    Rated 5 out of 5 stars

    Great subwoofer for any system

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

    This subwoofer gives out really great thump in all my action movies

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

    Rated 5 out of 5 stars

    Nice

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

    This really brings the boom to the room made a good choice with this one

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

    Rated 5 out of 5 stars

    Great sub

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

    Improve bass effects with this device. Can’t go wrong with it.

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

    Awsome Low Tones

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

    Easy setup works great with my Denon 1700H Receiver also have the Logan Martin Motion 4i bookshelf speakers.

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

    Rated 5 out of 5 stars

    Extremely happy so far

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

    Fills a large home theater room in my finished basement

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

    Big boom for a small room

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

    Martin Logan products are hands-down the best of the best. This subwoofer is no exception. It was easy to set up. And works great with my Macintosh system and KEF speakers.

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

    Blown Away...

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

    I am blown away by this subwoofer. So immersive and lifelike, that I almost feel like I’m at the movie theatre. Don’t be fooled by the wattage, it packs a definite punch...a great investment!

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

    Rated 4 out of 5 stars

    Good Value for the money

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

    A good value for the money. The sub completes our sound system by adding a good bottom (base) to SACDs and movies.

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

    Not very reliable

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

    Within a year, the sub stopped performing and the speaker had to be replaced. It broke with only minimal use at low volume and made a constant humming. I called the manufacturer and they sent me a new speaker which was very easy to install. Problem was fixed and it was not an internal electrical issue.

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

    Good sub

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

    Work great! Easy to install. Fits our entertainment cabinet!

    I would recommend this to a friend
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