Martin Logan DYNAMO 400 8" 75W Powered Downward Firing Subwoofer - Satin Black

ePower
(623)
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US $169.99
as low as $29.50/mo with
Condition:
Used
“Tested. Fully Functional. Good Used Condition. Has Some Cosmetic Damage, Does Not Affect ”... Read moreabout condition
Last one3 sold

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People want this. 15 people are watching this.
Breathe easy. Returns accepted.
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Located in: Chicago, Illinois, United States
Delivery:
Estimated between Sat, Dec 6 and Wed, Dec 10 to 94104
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Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:136087887205
Last updated on Nov 13, 2025 14:05:47 PSTView all revisionsView all revisions

Item specifics

Condition
Used
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller Notes
“Tested. Fully Functional. Good Used Condition. Has Some Cosmetic Damage, Does Not Affect ...
Driver Size
8 in
Shape
Cube
System Configuration
1 + Subwoofer
Color
Black
Material
Wood
MPN
DYN400D
Item Length
15-1/4"
Brand
MartinLogan
Type
Subwoofer
Audio Inputs
Stereo L/R RCA, Line Level Input
Item Height
15-1/8"
Model
Martin Logan Dynamo 400
Connectivity
Wired
Peak Power Handling
150W
RMS Power
75 W
Item Width
13-5/16"
Item Weight
28.5lbs
Category

Item description from the seller

About this seller

ePower

99.4% positive feedback•2.1K items sold

Joined Aug 2023
Usually responds within 24 hours
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
4.9

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Seller feedback (652)

All ratingsselected
Positive
Neutral
Negative
  • e***y (312)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Overall good deal, sub had little bit more scratches and dings than described and was dirty and very dusty, driver is great, so is the sound. I recommend this seller.
  • i***v (57)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Fast shipping. Item as described. A bit too much packing, to be honest.
  • d***d (5)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Safely packed and arrived as described.
See all feedback

Product ratings and reviews

Learn more
5.0
6 product ratings
  • 6 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Good sound quality

Well designed

Good value

Most relevant reviews

See all 6 reviews
  • by josch-775
    Apr 08, 2024

    Working well for the size of my room

    When I first connected this subwoofer, it would make a quick pop at the start of every new song. After a day of that, it seems to have stopped and hasn't done it since. Not sure what was going on there. Otherwise, it sounds great and has added that needed dimension to my ML Motion i40's.

    Verified purchase: YesCondition: Pre-OwnedSold by: ave_electronics

  • by dafoster-64
    Feb 23, 2025

    in great shape sounds wonderful...

    in great shape sounds wonderful

    Verified purchase: YesCondition: Pre-OwnedSold by: rbrueck

  • by ken_buajitti
    Nov 15, 2021

    Fabulous sound

    Great Sound, easy to set up and use, nice to have speaker level inputs

    Verified purchase: YesCondition: Pre-OwnedSold by: look-here-buy-here

  • by tasmith1950
    May 01, 2024

    Works all well together

    It sounds great with Martin Logan Motion IV speakers.

    Verified purchase: YesCondition: Pre-OwnedSold by: synergyindustrial

  • by chad6846
    Nov 16, 2020

    Very good subwoofer.

    A very musical subwoofer, complements some bookshelf speakers nicely in our office. 8" subwoofer is more than enough in my 12' x 12' room.

    Verified purchase: YesCondition: NewSold by: eraglin

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