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MartinLogan – Dynamo 400 8″ 150W Ported, Compact, Powered Subwoofer – Satin Black $240.00 Save:$134.00(36%)
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MartinLogan – Dynamo 400 8″ 150W Ported, Compact, Powered Subwoofer – Satin Black

in Subwoofer Speakers
Sku: 6255494
4.45 (50 Reviews)

$240.00 Save:$134.00(36%)

Available in stock

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Description
  • Integrated Class D Amplifier
    Dynamo 400’s Class D amplifier supplies 150W peak power (75W RMS) and operates with extremely low levels of distortion to deliver dynamic impact with plenty of overhead.
  • Low Pass Filter and Phase Adjustment
    Properly calibrate the subwoofer for seamless integration into any system.
  • Inputs
    Dynamo 400 features Stereo RCA Inputs, a RCA LFE Input and speaker level inputs for maximum flexibility.
  • Low-Turbulence Port
    Dynamo 400 features tuned, long low-turbulence ports designed to provide superb low-end extension while minimizing port induced distortion.
  • Inverse Mathematical Equation (IME) Filter
    The IME filter used in the Dynamo subwoofers is derived from the inverse of the unfiltered driver response. Precision IME filtering yields extremely accurate low-frequency response.
Additional information
Weight 28.4 lbs
Dimensions 13.7 × 13.3 × 15.2 in
Amplifier Class

D
Product Depth

13.7 inches
Remote Control Included

No
Color

Satin Black
Peak Power Handling

150 watts
Firing Direction

Down
Maximum Frequency Response

200 kilohertz
Manufacturer's Warranty - Labor

3 Years
Controls

Volume
Enclosed

Yes
Enclosure Type

Bass reflex
Low-Pass Crossover

Variable
Manufacturer's Warranty - Parts

3 Years
Wireless

No
Product Weight

28.4 pounds
Input(s)

RCA
Integrated Amplifier

Yes
Model Number

DYN400D
Woofer Size

8 inches
Speaker Type

Floorstanding
Minimum Frequency Response

30 hertz
Woofer Composition

Polypropylene cone
Product Height

15.2 inches
Indoor Or Outdoor Use

Indoor
Product Name

Dynamo 400 8" 150W Ported, Compact, Powered Subwoofer
Brand

MartinLogan
Subwoofer Type

Powered
Color Category

Black
Cable(s) Included

Power
RMS Power

75 watts
Product Width

13.3 inches
UPC

810123023394
Reviews (50)
Ratings

4.5

50 Product Ratings
5
36
4
6
3
3
2
1
1
3

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Customer Reviews (50)

  1. Upgradeplease –

    Great sub for size and price. Sounds great in my home theater.

  2. Charles –

    Outstanding theater sound. Geeks installed 2 of these for my home theater and they add a huge amount of quality sound.

  3. Dirk –

    Excellent quality! Very satisfied. Takes the place of the origin model.

  4. Kennygadawgadawg241241 –

    Wow, this thing thumps the bass. Sounds awesome with my other Martin Logan speakers.

  5. Utuy –

    Great compliment to the rest of the sound system, integrates well.

  6. Lostspeakercover –

    This gives a full base sound w/o ‘blasting’ or intruding.

  7. MusicLover –

    Nice tight bass for smaller sub, and pairs beautifully with the Martin Logan Motion 4 speakers in a medium sized living room setting. I bought this with the understanding that I could exchange it for the 10″ woofer version, but this gives me all the bass I could want. I listen to a range of music: rock, jazz, acoustic bluegrass, and classical, and I do like to feel the bottom end of bass in the mix. I doubt it would be adequate for hip hop or other styles with astronomical levels of bottom end.

  8. Epalacios55 –

    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.

  9. Race88j –

    Very nice bass sound, easy to setup. Need to pay attention to the advertised output as the store advertisement said 150 watt but true rms is 75W.

  10. Bbdj –

    Nice subwoofer. Just got this installed. Good and quick service.

  11. Thefozz –

    I bought this to supplement a pair of Klipsch The Fives speakers in my office. As expected, this little ML Dynamo kicks butt, literally. So many subs out there are hollow, boomy loudboxes that do nothing to enhance music. The Dynamo is so rich and full and blends perfectly with The Fives. The Fives have sub controls built-in to the remote and speaker panel which makes this an even bigger win. I set it up using an app to inject pink noise to the system which I then measured using an audio spectrum analyzer to find the right crossover point (adjusted from the Dynamo’s knob) and amplitude (adjusted from the Klipsch remote). The blend is incredibly good. Even running 15-20kHz sweeps, it all stays well within my tolerance for weak spots. Great little sub, paired with great bookshelf speakers!

  12. SlimSlow3 –

    This subwoofer greatly improved my surround sound.

  13. Farmboy –

    High quality subwoofer that will bring your theatre to life.

  14. BBreviewer84 –

    Well priced subwoofer that compliments my Martin Logan speakers and fills in the base tones I was missing. Easy to set up and works well in my entertainment room. Received a free two year warranty with my Totaltech membership and received free installation by a technician so that we set it up to optimize the sound in the room

  15. FriendlyBuyer –

    not installed yet, will be installed on September 15, 2022 by Best Buy.

  16. MelindaP –

    Couldn’t be more please with my purchase. Fantastic quality and the sound is second to none!!

  17. Summer20 –

    Surprisingly a good subwoofer. Bass is stronger than expected so had to lower this. Excellent in large room. Compact size and nice that I can blend it with the furniture. Very easy to set up with equipment and TV

  18. JamesF –

    Great sound and easy to include in my home theater project

  19. Willi –

    Good bass. No complaints on perfromance. Just too expensive compared to the supercube. Which is what I ended up getting

  20. MarkH –

    Purchased to complement ML bookshelf speakers which created a much fuller sound in the room. Crossover settings are not as accurate as I’d hoped, but after lots of trial and error, finally dialed it in.

  21. Jwalker –

    Worth ever penny the bass is deepnwhen it needs to be

  22. RenauldM –

    I am writing to complain about the poor service I received at your store. I ordered a subwoofer speaker online and chose the option to pick it up at the store. It was suggested that I have it delivered. I received a confirmation email that my order was ready for shipment and would be delivered on Friday 20 October 2023. However, when I arrived home, my order was not there. There was confusion about who had possession of the subwoofer. I presented my confirmation email and asked him why I was not notified of the delay. I was very frustrated and disappointed. I wasted my time and gas driving to the store for nothing. I expected better service from a reputable company like Best Buy. I request that you take immediate action to address this issue.

  23. anonymous –

    Works well to add musical low end to good computer speakers. It’s a definite step up in musicality from the old Polk PSW111. I find this to be a really good choice when a higher-end HSU or SVS sub would be too much.

  24. ChristopherhC –

    This was my first purchase from a Best Buy Outlet and I saved over $300 on item. I was a little more worn than I thought but it works perfectly. To be fair, I bought it online so I was not able to view the item. The savings were too good to pay up.

  25. TaniaB –

    For this price range, great sub woofer. Very happy with my purchase.

  26. TimothyJ –

    Sounds great adds sound and feeling to the movie every time…

  27. CoffeeLady –

    This sub matches well to my Martin Logan 15i bookshelf speakers. Was a little worried it might be under powered at only 75 watts RMS, but is more than powerful enough for my 16’ X 20’ room. The sub also has high level inputs which was great as my vintage amp does not have a LFE out. Only thing I wished the sub had was a pair of high level outs, which would have allowed it to feed my speakers vs. running two sets of speaker wires from the amp.
    This is my first down firing sub and am surprised at how good it sounds aimed into a carpeted floor.

  28. RovelS –

    Did not give me the power I was looking for in a driver, so I returned it

  29. DavidT –

    Very easy set up. Great packaging. Terrific base sounds

  30. Grant –

    I got it on sale, so the value was good. The base is strong and doesn’t seem to distort the overall audio.

  31. Printstudio101 –

    I got this as a second subs so it performs really well. However, if you use this sub as a standalone, it’s best for a smaller, medium size room only.

  32. PhillipK –

    I dont get it. I returned and got a polk 12″ that is ALOT better

  33. 2468 –

    Great piece! Works as described at a great sale price.

  34. MarkH –

    I received the sub. I can tell from the box it was dropped. Upon taking the sub out of the box one of the feet was broken offf and that corner badly damaged. I called and was offer 10% refund. lol. Cute

  35. Lion –

    Decent sounding sub woofer but it just doesn’t have enough power.

  36. Blobb –

    Very skeptical of an 8 performing for what I want but… this little thing gets down! Not heavy bass but hits the notes very well! Sharp quality is best described. Id buy this again, in fact I plan on a second just for fulfillment wanted.

  37. Brian –

    As expected from Martin Logan, excellent sound, especially for a sub-woofer a bit on the small size.

  38. ZacharyC –

    Had my eye on this for some time. Compliments Martin Logan motion 35s. Tons of power without distortion.

  39. Gamer –

    Great subwoofer. Perfect for a small room. Would recommend.

  40. RosalvaT –

    Awesome pick! I would recommend it the slounds are clear.

  41. RedHotMom –

    My receiver broke, so I used one of my other receivers that was 5.2 and I needed another subwoofer. This one was on sale, but it does not disappoint. Sound when watching movies is great

  42. AaronH –

    This is a nice sub. I feel like we got a good deal.

  43. JesseK –

    Excellent product for the price. It is a very tight and clean sound and you get plenty of Bass

  44. Bigmatt22 –

    This sub has a nice sound to it. Would i recommend it to others yes.

  45. HelenaR –

    Good sub for a great price. Its adequate for a smaller room. Its punchy and I really like the upscale looks. I wish it had a bit more power sometimes but for the price its a deal.

  46. Fiberdave –

    What can I say? It’s a Martin Logan quality and excellent sound.

  47. Unknown –

    MartinLogan – Dynamo 400 8″ 150W Ported, Compact, Powered Subwoofer – Satin Black

  48. JasonM –

    Very suprised. There are many 8in subs for even less money that have more power. But they wont sound like this. Many small subs have uneven frequency response. That makes them sound boony or one note. That can be ok for movies sometimes but not at all for music. There must be some unique filtering on the crossover or some dsp on this sub. It blends very well even with speakers that far excede it price range. Also for an 8in to go down to 30hz is impressive. It also slams much more than its power ratting would suggest. This is a great sub for a desk setup or 2 chanel system. It would also work well in a small surround sound setup. I got it for sale at 40% off and at that price it is a no brainer. nothing comes close. At full price its still impresive for a sub of its size. If you can deal with a bigger sub then there might be a few other compelling options. Overall its my favorite small Sub.

  49. Thebeast –

    The subwoofer has a lot of power to it, and it sounds very very good. I also gave it to thumbs up. I would recommend this unit to anybody.

  50. audioguy88 –

    Good low bass…not overly punchy where all you hear is bass.

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