Klipsch Flexus Sub 100 vs MartinLogan Dynamo 700w

Last updated: October 31, 2026

Short answer: the Klipsch Flexus Sub 100, if you are buying new. The MartinLogan Dynamo 700w measures as well as it (#25 vs #22 of 73 subwoofers, 3.4/5 vs 3.4/5) but is discontinued, so only consider it used; the Klipsch Flexus Sub 100 is still sold new at $349.

Klipsch Flexus Sub 100 vs MartinLogan Dynamo 700w

Why pick the Klipsch Flexus Sub 100: A compact sealed 10 inch subwoofer made to add bass to a Klipsch Flexus soundbar in a small room. The catch: Only works with Klipsch Flexus soundbars, not as a standalone LFE sub.

The case for the MartinLogan Dynamo 700w: A discontinued compact sealed 10 inch subwoofer that adds upper bass weight to movies and music. The tradeoff: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority.

Buy the Klipsch Flexus Sub 100 if you want one new; the MartinLogan Dynamo 700w is discontinued, so only look for it used.

Want more options? Browse the full Subwoofers rankings.

Prices on this page were last checked November 7, 2026 at 7:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Specifications Side By Side

Klipsch Flexus Sub 100 MartinLogan Dynamo 700w
Price$349.00$999 Discontinued
Ranked#22 of 73 in Small Home Subwoofers (Under 30 lbs)#25 of 73 in Small Home Subwoofers (Under 30 lbs)
CountryUnited StatesUnited States
Enclosuresealedsealed
Output SPL at 20 Hz90.2 dB86.3 dB
Output SPL at 25 Hz96.7 dB88.4 dB
Output SPL at 31.5 Hz101.2 dB94.6 dB
Output SPL at 40 Hz105.9 dB106.3 dB
Output SPL at 50 Hz109.0 dB110.3 dB
Output SPL at 63 Hz112.4 dB110.5 dB
CEA-2010-A Average (40-80Hz)109.1 dB (avg of 3/4 bands)109.0 dB (avg of 3/4 bands)
Dimensions13.4”H x 13.2”W x 13.7”D (339.9 x 335.0 x 349.2 mm)12.5”H x 11.7”W x 12.5”D (318.5 x 296.9 x 318.3 mm)
Weight20.7 lbs (9.4 kg)26.5 lbs (12.0 kg)
Warranty2/53
Measurement SourceBrent ButterworthBrent Butterworth
Drivers10” (254mm) driver10” (254mm) driver

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