MartinLogan Dynamo 1100X vs MartinLogan Dynamo IW-O Detailed Comparison

MartinLogan Dynamo 1100X vs MartinLogan Dynamo IW-O Comparison

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MartinLogan 1100X

Powered Subwoofer | 22-200 Hz

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MartinLogan Dynamo IW-O

Passive In-wall | 30-190Hz

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MartinLogan 1100X

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MartinLogan Dynamo I...

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MartinLogan 1100X

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MartinLogan Dynamo I...

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MartinLogan 1100X vs MartinLogan Dynamo IW-O Speaker Comparison

In this review, we will be comparing two different types of subwoofers by MartinLogan. MartinLogan Dynamo 1100X is a Subwoofer speaker whereas the Dynamo IW-O is a In-wall speaker.

Let's have a brief look at the main features of MartinLogan 1100X and MartinLogan Dynamo IW-O first before getting into our more detailed comparison.

Key Specs	MartinLogan 1100X	MartinLogan Dynamo IW-O
Brand	MartinLogan United States · founded 1982	MartinLogan United States · founded 1982
Driver	12" Polypropylene	2 x 8"
Amplifier	650 watts RMS	—
Enclosure	Sealed	—
Frequency response	22-200 Hz	30-190Hz
Impedance	—	8 ohms
App control	Yes	—
Weight	20.91kg / 46lbs	6.80kg / 15lbs
Dimensions (H x W x D)	17-1/8" x 15" x 16-1/8" 435.0 x 381.0 x 410.0mm	19.11" x 10.73" x 4.1" 485.4 x 272.5 x 104.1mm

MartinLogan 1100X

MartinLogan Dynamo IW-O

Woofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

The sections below take each area in turn: driver and amplifier, frequency response, physical size and connectivity.

Drivers

The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.MartinLogan 1100X and MartinLogan Dynamo IW-O have a totally different setup: the MartinLogan 1100X features 1 x 12-inch drivers whereas the Dynamo IW-O features 2 x 8-inch drivers.

Frequency Response

Dynamo 1100X has a frequency range of 22-200 Hz whereas Dynamo IW-O has a frequency range of 30-190Hz. With a minimum frequency of 22Hz, the Dynamo 1100X can go significantly deeper on the low side and provide stronger bass compared to the Dynamo IW-O's min frequency of 30Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Subwoofer class in our database.

Low Frequency

Subwoofer Speakers

MartinLogan 1100X

MartinLogan Dynamo IW-O

Min

Average

Max

High Frequency

Subwoofer Speakers

MartinLogan 1100X

MartinLogan Dynamo IW-O

Min

Average

Max

Physical Specs

The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare MartinLogan 1100X's and MartinLogan Dynamo IW-O's external dimensions. MartinLogan 1100X has external dimensions of 435.0 x 381.0 x 410.0mm (17-1/8 x 15 x 16-1/8inch) whereas MartinLogan Dynamo IW-O has external dimensions of 485.4 x 272.5 x 104.1mm ().

MartinLogan Dynamo IW-O is 108.5mm narrower and 305.9mm less deeper than MartinLogan 1100X but it is also 50.4mm taller.

Below you can see the front view size comparison of MartinLogan 1100X and MartinLogan Dynamo IW-O in scale.

Comparison image of MartinLogan 1100X and MartinLogan Dynamo IW-O Size and External Dimensions

What's in the Box of MartinLogan 1100X?

Here are the items that are included inside the box of Dynamo 1100X:

Powered subwoofer
Grille
6.5-feet AC power cord
User-feets Manual

What's in the Box of MartinLogan Dynamo IW-O?

Here are the items that come with the Dynamo IW-O:

In-wall subwoofer
Grille
Cutout Template

Reasons to choose MartinLogan Dynamo 1100X over MartinLogan Dynamo IW-O

Speaker Type	Powered vs Passive	Built-in amplifier
Woofer Size	12 inches vs 8 inches	Larger woofer
Low Frequency Response	22 Hz vs 30 Hz	Generates deeper bass
High Frequency Response	200 Hz vs 190 Hz	Generates higher frequency
Height	435mm vs 485mm	Easier to fit in smaller spaces

Reasons to choose MartinLogan Dynamo IW-O over MartinLogan Dynamo 1100X

Number of Woofers	2 vs 1	More woofers
Base Surface Area	283cm² vs 1562cm²	Takes less floor space
Price per pair*	1398USD vs 1500USD	costs less (*prices may change depending on the seller, location and time)

Size, drawn to scale

Both subwoofers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.

One scale for both, standing on the same floor and pushed back to the same wall, so the bigger one visibly takes more of the room.

MartinLogan 1100X needs about 451% more floor area. MartinLogan 1100X stands 306mm further into the room. MartinLogan Dynamo IW-O is 50mm taller.

MartinLogan 1100X vs MartinLogan Dynamo IW-O Specs Table

Detailed comparison of specifications

General	MartinLogan Dynamo 1100X	MartinLogan Dynamo IW-O
Brand	MartinLogan	MartinLogan
Speaker Type	Powered Subwoofer	Passive Subwoofer
Impedance	n/a	8 ohms
Frequency Response	22-200 Hz	30-190Hz
Amplifier
Watts RMS (Continuous)	650-watt RMS	n/a
Drivers
Woofer Quantity	1	2
Woofer Size	12"	8"
Woofer Composition	Polypropylene
Woofer Surround Material	n/a	Thermal Plastic Rubber (TPR)
Tweeter Size	-	-
Aimable Tweeter	No	No
Midrange Driver	No	No
Firing Direction	front and bottom	n/a
Physical Specs
Height	435.0mm (17.1")	485.4mm (19.1")
Width	381.0mm (15")	272.5mm (10.7")
Depth	410.0mm (16.1")	104.1mm (4.1")
Weight	20.91kg (46lbs)	6.80kg (15lbs)
Enclosure	Acoustic Suspension
Available Colors	Satin Black	n/a
Grille	Yes	n/a
Moisture Resistancy	No	No
Connections
Biamp Inputs	n/a	No
Other
Parts Warranty	3 Yrs w/ Registration	5 Years
Labor Warranty	3 Yrs w/ Registration	5 Years

Verdict

Both are MartinLogan, so the design approach is shared and the differences are mostly in output, size and price.

Area	Better	Why
Bass depth	A	MartinLogan 1100X goes deeper - 22Hz against 30Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum.
Driver area	evenly matched	Near-identical radiating area (12" against 2 x 8").
Cabinet size	depends	MartinLogan Dynamo IW-O is about 80% smaller by volume. In a subwoofer that is a real trade rather than a preference: box volume is how you get output low down without a bigger amplifier.
Warranty	B	MartinLogan Dynamo IW-O carries 5 years on parts against 3 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line.
Price	B	MartinLogan Dynamo IW-O costs less - $1,398 against $1,500, about 7% less.

A MartinLogan 1100X B MartinLogan Dynamo IW-O
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both subwoofers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

Neither runs away with it - they trade advantages. Let your room size and where the box can actually stand settle it. If placement is the constraint - a corner, behind a sofa, under a desk - MartinLogan Dynamo IW-O is the one that will actually go there, and a well-placed small subwoofer beats a badly-placed big one every time.

One thing outweighs everything above: where the subwoofer stands. Room modes can add or remove 10dB or more at a given seat, which is far larger than any difference on this page. Before spending more, try the sub in two or three positions - the crawl test, where you put it in the listening seat and crawl the room to find where the bass sounds best, costs nothing and usually beats an upgrade.

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