Dynamo 400 is a Ported type Powered Subwoofer by MartinLogan with a frequency range of 30-200 Hz. It was released in 2016. It features 1 x 8" Polypropylene Woofer, and powered by a 75 watts amplifier.
Dynamo 400 is a member of MartinLogan's Dynamo series of Powered subwoofers. The Dynamo range are MartinLogan's powered subwoofers with app-based control. Below you can see the main specs of these subwoofers as well as review and comparison links.
See all 7 MartinLogan Dynamo models compared »
MartinLogan Dynamo Series Subwoofers
Frequency Response
Where should the crossover go? → · What will your room do to this bass? →
MartinLogan 400 has a Frequency response range of 30-200 Hz.
Here we have a comparison of how Dynamo 400's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Powered Subwoofers
High Frequency
Subwoofer Speakers
MartinLogan 400's Polypropylene Woofer
Among all subwoofers in our database with a max MSRP price of 500$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the MartinLogan 400's 30Hz:
Low-Pass CrossoverMartinLogan 400 has a variable Low-pass filter (LFP) which lets you choose a frequency level between 35-120 Hz in order to block any frequencies above that point from reaching the amplifier.
MartinLogan 400 Back View
Inputs and Outputs
- PreampLevel Inputs: Stereo RCA/LFE
- SpeakerLevel Inputs: Yes
- SpeakerLevel Outputs: No
- Wireless: No
MartinLogan 400 Connections
MartinLogan 400 External Dimensions and Weight
MartinLogan 400 has external dimensions of (Height x Width x Depth) 15-1/8 x 13-5/16 x 15-1/4inch (385.0 x 339.0 x 388.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of MartinLogan 400 is approximately 1315.3cm2 / 203.9inch2.
To get a better perspective on the real life size of MartinLogan 400, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
MartinLogan 400 Speaker Size Compared to a Compact Disc
Here we place the MartinLogan 400 virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.
MartinLogan 400 Subwoofer next to a Media Stand
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WeightThe MartinLogan 400 weighs 12.95kg / 28.5lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how Dynamo 400's weight compares with the average, max and min weights in its class.
Weight
All Subwoofer Speakers
Weight
Subwoofer Speakers under $500
Cabinet type and Materials
MartinLogan 400 has a
Bass reflex type cabinet.
MartinLogan 400 Feet
Port Position
MartinLogan 400 is a bottom-firing port speaker.
Available colors
MartinLogan 400 is available in Satin Black.
Does the MartinLogan 400 come with a Grille?
Dynamo 400 comes with grilles in Black color choices. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
MartinLogan 400 with Grille
What's in the Box of MartinLogan 400?
Here are the items that are included inside the box of Dynamo 400:
- Powered subwoofer
- 6.5-feet AC power cord
- User-feets Manual
Recommended Accessories
Here is a list of accessories that we think you may need for the MartinLogan Dynamo 400.
User's Manual
For more information about how to setup, use and maintain the MartinLogan Dynamo 400, use the direct link below to download the official manual document:
Download User Manual for MartinLogan 400
Official Brochure
Here is a link to download the official brochure for the MartinLogan Dynamo 400 speaker:
Official Brochure for MartinLogan 400
Official Product Page
Official manufacturer's product page for the MartinLogan Dynamo 400 speaker can be found below:
Official Product Page for MartinLogan 400
Warranty
3 Yrs w/ Registration of parts warranty and 3 Yrs w/ Registration of labor warranty is generally provided by the manufacturer.
| General |
| Brand | MartinLogan |
| Full Model Name | MartinLogan Dynamo 400 |
| Type | Powered Subwoofer |
| Release Date | 2016 |
| Frequency Response | 30-200 Hz |
| Enclosure Type | Ported |
| Enclosure | Bass reflex |
| Firing Direction | Down |
| Port Position | bottom |
Amplifier & Driver |
| Power (RMS) | 75 watts |
| Woofer | 8-inch Polypropylene |
| Controls & Connections |
| Low-pass Crossover | 35-120 Hz |
| Phase Control | Yes |
| Wireless | No |
| Line-level Inputs | Stereo RCA/LFE |
| Speaker-level Inputs | Yes |
| Speaker-level Outputs | No |
Physical |
| Dimensions (HxWxD) | 15-1/8" x 13-5/16" x 15-1/4" (385.0 x 339.0 x 388.0mm) |
| Weight | 12.95 kg (28.5 lbs) |
| Available Colors | Satin Black |
| Grille | Yes |
| Mounting Bracket | No |
| Parts Warranty | 3 Yrs w/ Registration |
| Labor Warranty | 3 Yrs w/ Registration |