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MartinLogan MartinLogan Dynamo IW-O Review
MartinLogan Dynamo IW-O

Main Features

  • Tweeter
  • 8" Woofer
  • 30-190Hz Frequency Response
  • --- Sensitivity
  • Impedance: 8ohms
  • Power Range: 50-400watts
  • Dimensions(HxWxD): "x"x" /
MSRP: $699 (list price)
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MartinLogan Dynamo IW-O Review
MartinLogan Dynamo IW-O MartinLogan Dynamo I...
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MartinLogan Dynamo IW-O is a -way Passive In-wall speaker by MartinLogan. It features a Tweeter and x 8" Woofer. The speaker has a frequency range of 30-190Hz and a sensitivity of ---. MartinLogan Dynamo IW-O has an MSRP of 1398$ per pair but can often be found around 0$ per pair.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response of the MartinLogan Dynamo IW-O Speaker

MartinLogan Dynamo IW-O has a Frequency response range of 30-190Hz at ±3dB and Power Range of 50-400 watts. With a minimum frequency of 30 Hz, MartinLogan Dynamo IW-O delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.

To focus on the subwoofers that are in a similar price range with MartinLogan Dynamo IW-O, check out the Powered Subwoofers under $1500. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how MartinLogan Dynamo IW-O's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
In-wall Speakers
MartinLogan Dynamo IW-O
Min
Average
Max
High Frequency
In-wall Speakers
MartinLogan Dynamo IW-O
Min
Average
Max

Impedance and Sensitivity

MartinLogan Dynamo IW-O's nominal impedance level is 8 ohms and has a sensitivity of ---.

Sensitivity
In-wall Speakers
MartinLogan Dynamo IW-O
Min
Average
Max

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so MartinLogan Dynamo IW-O is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

With a sensitivity level of only dB, MartinLogan Dynamo IW-O is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.

Check the amplifiers that are in a similar price range to the MartinLogan Dynamo IW-O:

  • Integrated Amps under 1000 USD
  • Integrated Amps under 1500 USD
  • Integrated Amps under 2000 USD
  • All Integrated Amplifiers

Input Type

MartinLogan Dynamo IW-O features Spring post type connectors. Bi-amping and Bi-wiring are not possible.

MartinLogan Dynamo IW-O External Dimensions and Weight

MartinLogan Dynamo IW-O has external dimensions of (Height x Width x Depth) .

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

Here are the items that are included inside the box of MartinLogan Dynamo IW-O:
  • In-wall subwoofer
  • Grille
  • Cutout Template
  • Recommended Accessories

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

    • 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 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-O Alternatives in Passive In-wall Speakers
    Model Type Sensitivity Impedance Frequency
    Frequently Asked Questions about MartinLogan Dynamo IW-O
    What is the Speaker Sensitivity of MartinLogan Dynamo IW-O
    is the MartinLogan Dynamo IW-O an easy to drive speaker?

    MartinLogan Dynamo IW-O Detailed Specifications

    General
    BrandMartinLogan
    Full Model NameMartinLogan Dynamo IW-O
    Speaker Type-way In-wall
    Power Range50-400 watts
    Sensitivity---
    Impedance8 ohms
    Frequency Response30-190Hz
    DRIVERS
    Woofer Size8-inch
    Woofer Composition
    Woofer SurroundThermal Plastic Rubber (TPR)
    Tweeter SizeN/A-inch
    Aimable TweeterNo
    Midrange SizeN/A-inch

    CONNECTIONS
    Connector TypeSpring post
    Biamp InputsNo
    PHYSICAL SPECS
    Heightmm ( -inch)
    Widthmm ( -inch)
    Depthmm ( -inch)
    Heightmm ( -inch)
    Weightkg ( lbs)
    Enclosure
    Moisture ResistanceNo
    OTHER
    Handheld RemoteNo
    Parts Warranty5 Years
    Labor Warranty5 Years
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