Martin Logan Dynamo 500 active subwoofer. $500 MSRP

Selling for $195.00

Add some bass for cheap!

Original Price: $500.00

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This was a very affordable subwoofer when Martin Logan introduced it several years ago. Specs on paper look really great with a frequency response of 29 Hz to 200 Hz and a built-in amplifier that will pump out 120W to its 10″ polypropylene woofer. Controls are very simple with a phase switch, volume level and crossover controller. This made setup extremely simple and quick. Just run a pair of RCAs in, adjust the crossover to match your speakers and volume level to suit your room and you are ready to rock and roll. Sub is not particularly big with a 16″ square footprint (dimensions are 13-1/16″ wide, 14-3/4″ tall and 15-13/16″ deep) with a very manageable 39lb weight.

Overall, the sub looks good. Some scuff marks here and there that are common with use but nothing major. We don’t have the original box but will securely pack it for safe shipping. Local pickup from our store welcomed.





Additional information

Weight 60 lbs
Dimensions 20 × 20 × 20 in

Manufacturer Website



Minor scuff marks, a small corner ding