Dynamo IW-O

In-Wall Subwoofer with an Open Back Design

What’s the difference between Dynamo IW-O and IW-S? The Dynamo IW-O uses the same retrofittable size, and dual 8” woofer configuration as the IW-S, but with an open back design instead of a sealed, fire rated enclosure. The open back of Dynamo IW-O means more sound will transfer into the wall (which could cause some noise complaints from other rooms), but with the tradeoff of deeper bass extension and higher output potential than IW-S. IW-O also has an available “High Output Back Box” accessory for when a mixture of sound control and higher output is desired.


$599.99 each
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The Choice Is Yours

Dynamo IW-O gives you flexible installation options. Choose to use it in its default open wall cavity configuration and you have an affordable, easily retrofittable, high output subwoofer solution. For new construction projects, or when drywall repair isn’t an issue, the optional HOBB (High Output Back Box. Sold Seperately) acoustic backbox provides a large enclosure volume to let the Dynamo IW-O stretch its legs, while providing acoustic control to reduce sound transmission through the wall.

Bass Without The Bulk

Purpose-built for high output and low distortion from a compact, retrofittable enclosure. The dual, 8” High-Excursion Carbon-Fiber-Reinforced Polypropylene woofers provide more surface area than a 10” sub for powerful, accurate bass without the bulk.

Distributed Audio Made Easy

Our MDA series amplifiers have made adding bass to whole home music systems easier than ever. For these distributed audio systems, the Dynamo IW-S can easily be driven off the bridged “subwoofer output” allowing you to take advantage of the MDA’s robust bass management, custom DSP profiles, and advanced ARC Genesis room correction for optimized performance in any environment.

Explore the MDA Series

Practical Performance

With powerful bass and zero footprint, you get the best of both worlds, allowing you to add bass to any room without taking up valuable floor space.

Other Features:

  • Ultra Rigid Stamped Steel chassis and baffles and die-cast aluminum clamps add strength and rigidity for better bass performance, and more durable installation.
  • Magnetically attached grille: Easily reveal or hide the performance whenever you like.
  • Premium-grade components include high-power rated resistors, capacitors and heavy gauge wire inductors.
  • Optional (sold seperately) High Output Back Box available for when sound control is desired. **The IW-O with optional back box will requires new contruction or drywall repair to be performed. If both sound control and retrofit sizing is required, take a look at the Dynamo IW-S.**
  • Nickel-plated, spring-loaded binding posts feature a larger wire hole to accept higher-gauge wire or banana plugs.

    The Hidden Alternative

    Sometimes a traditional subwoofer just isn’t in the cards for every system. The Dynamo IW-O expands the offerings in our highly acclaimed Dynamo Subwoofer series. With a minimalist look, the Dynamo IW-O is a great way to have much of the performance of a standalone sub without the bulk. Bass you’ll notice, with a look you won’t.

    A Perfect Match

    In addition to the MartinLogan MDA series, the Dynamo IW subwoofers are compatible with the MartinLogan MP500 amplifier. The custom DSP presets optimize performance and our engineers even designed options to support running dual subwoofers off a single amplifier, making it easier than ever to get powerful bass in a stealth installation.

    Explore the MP500

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    Specifications

    Specifications are subject to change without notice

    Design

    Dual high-excursion drivers, in-wall, GRIPTM chassis/mounting bracket, and optional backbox

    Frequency Response

    +/-3dB from 30->190 Hz

    Low Frequency Extension*†

    25 Hz (DIN)

    Max input power

    400W

    Minimum Mounting Depth

    3-1/2” (8.9cm)

    Minimum Mounting Depth

    19-1/8” x 10-3/4” x 3-1/2” (48.5cm x 27.2cm x 8.9cm)

    Low Frequency Driver

    Two 8” (210-mm) CFPTM carbon- fiber-reinforced polypropylene cones, 1-1/2” (38-mm) voice coils, over- molded TPRTM surrounds, 1-1/2” (38- mm) 8-layer copper wire voice coils, high-temperature polyamide formers, ceramic/ferrite magnet structures

    Internal Volume

    88L “standard” wall cavity (26L when installed in optional backbox)

    Suitable Amplifier Range

    50-800W

    Weight

    15lbs (6.8kg) each

    Cut-Out Dimensions

    18” x 9-5/8” (45.7cm x 24.5cm)

    Finish

    White, paintable

    Customer Reviews For Dynamo IW-O

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