MartinLogan Dynamo 500 10″ Subwoofer 360W Peak – Black

MartinLogan Dynamo 500 10″ Subwoofer 360W Peak – Black

This MartinLogan Dynamo 500 powered subwoofer delivers tight, articulate bass from a compact footprint, with a 10-inch driver and 120-watt RMS (360-watt peak) amplifier that make it a very powerful option for serious home theatre or music in very good condition.

The Dynamo 500 uses a front-firing 10-inch high-excursion polypropylene cone woofer and dual rear low-turbulence ports, giving it deep extension down to about 29 Hz while keeping port noise and distortion low. Its 120-watt switch-mode amplifier is designed for low noise and low distortion, providing ample continuous power with 360 watts of peak capability for movie effects and musical transients. A continuously variable low-pass crossover (50–200 Hz), phase control, and level adjustment make integration with main speakers straightforward, whether you are adding it to a two-channel system or a full surround setup. Line-level stereo/LFE inputs support easy connection to AV receivers and stereo amps. In very good cosmetic condition, this unit presents well with only light signs of use on its black ash-style finish.

Key features and specifications:

10-inch high-excursion polypropylene cone woofer, front-firing

Bass-reflex enclosure with dual rear low-turbulence ports

Amplifier: 120 watts RMS / 360 watts peak, high-efficiency switch-mode design

Frequency response: 29–200 Hz ±3 dB (anechoic via LFE input)

Low-pass filter: continuously variable 50–200 Hz, plus bypass (LFE) option

Controls: level (gain), crossover frequency, phase (0° / 180°), auto/on power switching

Inputs: Left/Right RCA line-level, LFE RCA input

Auto power: signal-sensing auto on/off to reduce idle consumption

Finish: black ash-style cabinet with subtly rounded edges

No speaker-level (high-level) inputs and no digital inputs or outputs

Dimensions and weight:

Dimensions (front-firing orientation): (Width x Height x Depth) approximately 13 x 14.7 x 15.3 inches (330 x 373 x 389 mm)

Weight: 28.5 lbs (12.9 kg)

At 28.5 lbs with a substantial cabinet and serious amplifier, the Dynamo 500 feels solid and purpose-built, delivering bass that is both powerful and controlled rather than boomy, especially in small to medium rooms. For listeners seeking a compact but very capable subwoofer from a respected brand, this Dynamo 500 in very good condition is a strong choice for both home theatre and music systems.

Backed by Radique Audio’s 90-day warranty and our perpetual trade-back policy, you can purchase with confidence.