


Martin Logan Dynamo IW O In Wall Subwoofer and MP500 Amplifier Bundles
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Martin Logan Dynamo IW O In Wall Subwoofer and MP500 Amplifier BundlesWhats 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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
Great for adding life around your home desk
Good size and sturdy enough for small speakers and great for adding small touches for decorating around your desk without cluttering your desk space
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Reviewed in the United States on December 1, 2025
★★★★★ 5
Sturdy shelves
Shelves are sturdy and well built. The provided screws are garbage, just throw them out when the package arrives.
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Reviewed in the United States on August 11, 2023
★★★★★ 4
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Perfect addition to my living room
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Reviewed in the United States on September 30, 2023
★★★★★ 5
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Very sturdy and constructed well. They just didn't fit my space.
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Reviewed in the United States on December 8, 2022
★★★★★ 5
Heavy duty
I bought these to modify a safe. Very durable I had to cut down a corner and a sawszall had trouble getting through. On top of that they hold a lot of weight without buckling. Buy it.
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Reviewed in the United States on September 29, 2023