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  1. Home
  2. MartinLogan Speakers
  3. Powered Subwoofers
  4. MartinLogan Dynamo IW S
MartinLogan Dynamo IW S Subwoofer Review
MartinLogan Dynamo IW S - Front View

Compare To

Main Features

  • 2 x 8" Woofer
  • 35-190 Hz Frequency Response
  • Weight: 26.70 lbs / 12.11kg
  • Dimensions (H x W x D): 19-5/16" x 10-15/16" x 4-1/2"
MSRP: $800 (list price)
Check price atAmazon›
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MartinLogan Dynamo IW S Subwoofer Review
MartinLogan Dynamo IW S MartinLogan Dynamo I...
Check price atAmazon›

Made by MartinLogan · United States · since 1982 · sold through dealers

Dynamo IW S is a Passive In-wall by MartinLogan with a frequency range of 35-190 Hz. It was released in 2023. It features 2 x 8" Woofer.

Dynamo IW S is a member of MartinLogan's Dynamo series of Passive 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
Model Frequency Woofer Amp Power Weight
MartinLogan 400
Compare
30-200 Hz 8" 75 watts 12.95kg
MartinLogan 800X
Compare
24-200 Hz 10" 300 watts 13.64kg
MartinLogan 1100X
Compare
22-200 Hz 12" 650 watts 20.91kg
MartinLogan 1600X
Compare
20-200 Hz 15" 900 watts 25.91kg
MartinLogan 600X
Compare
27-200 Hz 10" 120 watts 15.91kg
MartinLogan Dynamo 12
Compare
22-200 Hz 12" 800 watts 27.9kg
MartinLogan Dynamo 10
Compare
23-200 Hz 10" 500 watts 19.41kg

Frequency Response

Where should the crossover go? →  ·  What will your room do to this bass? →

MartinLogan Dynamo IW S has a Frequency response range of 35-190 Hz.

Here we have a comparison of how Dynamo IW S's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Passive In-walls
MartinLogan Dynamo IW S
Min
Average
Max
High Frequency
In-wall Speakers
MartinLogan Dynamo IW S
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 2000$, these are the 5 Passive In-wall models that can reach deeper bass levels than the MartinLogan Dynamo IW S's 35Hz:

  • Definitive IW Sub Reference with Low Frequency of 14 Hz (Compare w/ Dynamo IW S)
  • Definitive IWSub 1010 with Low Frequency of 16 Hz (Compare w/ Dynamo IW S)
  • Definitive UIW RLS II with Low Frequency of 22 Hz (Compare w/ Dynamo IW S)
  • Definitive UIW RLS III with Low Frequency of 24 Hz (Compare w/ Dynamo IW S)
  • GoldenEar Invisa MPX with Low Frequency of 25 Hz (Compare w/ Dynamo IW S)

MartinLogan Dynamo IW S External Dimensions and Weight

MartinLogan Dynamo IW S has external dimensions of (Height x Width x Depth) (490.5 x 277.8 x 114.3mm ).

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 Dynamo IW S is approximately 317.5cm2 / 49.2inch2.

To get a better perspective on the real life size of MartinLogan Dynamo IW S, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

MartinLogan Dynamo IW S Real Life Body Size Comparison
MartinLogan Dynamo IW S Speaker Size Compared to a Compact Disc

Find speakers that fit your shelf or alcove →

Recommended Accessories

Here is a list of accessories that we think you may need for the MartinLogan Dynamo IW S.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

Warranty

5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

MartinLogan Dynamo IW S Detailed Specifications

General
BrandMartinLogan
Full Model NameMartinLogan Dynamo IW S
TypePassive In-wall
Release Date2023
Frequency Response35-190 Hz
Amplifier & Driver
Woofer2 x 8-inch

Controls & Connections
Physical
Dimensions (HxWxD)19-5/16" x 10-15/16" x 4-1/2" (490.5 x 277.8 x 114.3mm)
Weight12.11 kg (26.7 lbs)
Parts Warranty5 Years
Labor Warranty5 Years
MartinLogan Dynamo IW S Alternatives in Passive In-wall Speakers
Model Frequency Woofer Amp Power Dimensions
Klipsch R-5800-W II
Compare
40-23k Hz 8" — 14.6875-inch x 9.1250-inch x 3.9375-inch
Klipsch R-5502-W II
Compare
46-20k Hz 5.25" — 16.3750-inch x 6.5000-inch x 3.3750-inch
JBL Studio 6 88LCR
Compare
43-20k Hz 8" — 20.4375-inch x 8.7500-inch x 3.7500-inch
B&W CWM7.3 S2
Compare
48-28k Hz 6" — 28.0000-inch x 9.9375-inch x 4.0625-inch
MartinLogan Motion XT CI XTW6-LCR
Compare
44-25k Hz 6.5" — 27.0000-inch x 6.6250-inch x 3.5625-inch
JBL Studio 6 Theater
Compare
65-20k Hz 5.25" — 25.3125-inch x 6.2500-inch x 3.7500-inch
JBL Stage 280W
Compare
42-25k Hz 8" — 14.6875-inch x 9.3750-inch x 3.8750-inch
Focal 300 IW6 LCR
Compare
40-28k Hz 6.5" — 22.5000-inch x 7.5000-inch x 4.0000-inch
B&W CWM7.4 S2
Compare
45-28k Hz 4" — 23.5000-inch x 5.8125-inch x 3.6875-inch
Definitive UIW RLS III
Compare
24-30k Hz 5.25" — 23.7500-inch x 5.8750-inch x 3.8750-inch
Focal 100 IW LCR5
Compare
55-23k Hz 5.125" — 16.3130-inch x 5.8130-inch x 3.2500-inch
Klipsch R-5650-S II
Compare
60-23k Hz 6.5" — 13.0000-inch x 8.0000-inch x 3.6875-inch
JBL Stage 260W
Compare
50-25k Hz 6.5" — 12.2500-inch x 7.2500-inch x 3.5625-inch
B&W CWM663
Compare
45-50k Hz 6" — 11.0000-inch x 7.2500-inch x 3.7500-inch
JBL Studio 2 55IW
Compare
40-20k Hz 5.25" — 14.1250-inch x 6.4375-inch x 3.3750-inch
Polk Audio RC85i
Compare
50-20k Hz 8" — 12.7500-inch x 8.6875-inch x 3.5000-inch
Frequently Asked Questions about MartinLogan Dynamo IW S

How low can the MartinLogan Dynamo IW S go?

The MartinLogan Dynamo IW S has a frequency response of 35-190 Hz. Its low-end extends to 35Hz.

What driver does the MartinLogan Dynamo IW S use?

The MartinLogan Dynamo IW S has a 2 x 8-inch driver.

How big and heavy is the MartinLogan Dynamo IW S?

The MartinLogan Dynamo IW S weighs 12.11kg / 26.6lbs and measures 19-5/16" x 10-15/16" x 4-1/2" (HxWxD).

How much does the MartinLogan Dynamo IW S cost?

The MartinLogan Dynamo IW S has a manufacturer's list price (MSRP) of $800.

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