MartinLogan Dynamo 400 Black - Subwoofer

A healthy dose of MartinLogan bass MartinLogan's Dynamo 400 features a high-excursion 8" woofer driven by a highly efficient built-in Class D amplifier. This is the entry-level sub in MartinLogan's 2018 Dynamo lineup, but it still delivers punchy bass down to 30 Hz - that's deep enough to lend serious kick to movie and TV show special effects.