User manual for MartinLogan Dynamo 400 subwoofer, covering controls, connections, setup, placement, and technical specs.
This manual guides users through setting up and operating the MartinLogan Dynamo 400 subwoofer. It covers controls, audio and power connections, placement, and room acoustics. Technical specifications include frequency response, amplifier power, and physical dimensions. The manual also includes EU compliance information and warranty registration details.
The Dynamo 400 features a high-excursion 8" woofer, a 75W amplifier, and is designed for seamless integration with both MartinLogan and non-MartinLogan systems. It includes settings for volume, low-pass filter, and phase, as well as speaker-level and line-level inputs. Placement and room acoustics are addressed for optimal performance.
| System Frequency Response | 30–200 Hz ± 3 dB. Anechoic in LFE mode. |
|---|---|
| Woofer | 8" (20.3cm) high-excursion, inverted surround, polypropylene cone in a stamped steel basket with extended throw driver assembly. Ported. |
| Amplifier | 75 watts (150 watts peak) |
| Power Draw | Typical: 20W, Max: 90W, Idle: 4W, Standby: 0.5W |
| Weight | 28.5 lbs. each (12.9 kg) |
| Size (HxWxD, Down-Firing Orientation) | 15.2 x 13.3 x 13.8 inches (38.5 x 33.7 x 35.1 cm) |
Main Speaker Size: large (recommended for full range speakers); Center Speaker Size: small (recommended); Surround Speaker Size: small (recommended).
Typical: 20W, Max: 90W, Idle: 4W, Standby: 0.5W.
30–200 Hz ± 3 dB. Anechoic in LFE mode.