£595

Dynamo 400

Dynamo 400 features a 150 Watt (peak) amplifier, 8-inch audiophile grade woofer, and RCA and speaker level input options. Dramatic bass detail and attack, superb extension, and room-shaking output ensure a compelling music and home theater experience.

Dynamo 400
Product Highlights

  • 8-inch inverted surround poly cone woofer
  • 150 Watts (peak) amplifier
  • Low-turbulence, ported design
  • RCA and speaker level inputs

LEFT AND RIGHT 2-CHANNEL INPUTS

Dynamo 400, 600X, 800X, 1100X, and 1600X subwoofers feature left and right input via RCA line level as well as speaker level connections.

POWERFUL, HIGH-EXCURSION, LOW-TURBULENCE, INVERTED SURROUND WOOFERS

The latest generation of MartinLogan Dynamo subwoofers feature advanced-design woofers with inverted surrounds and powerful magnet, motor, and suspension designs. In front-fire mode the unique inverted surround design maximizes excursion clearance behind the grill cover. When positioned in a down-firing configuration, the inverted surround significantly reduces airflow related turbulence for an articulate and detailed low-frequency experience. These advanced-technology woofers pair a high-power magnet structure (significantly more robust than previous generations) with low-mass diaphragms to provide massive excursions while perfectly preserving the tiniest bass detail. The exceptional damping properties of the cone ensure a smooth, non-resonant response necessary for truly seamless blending with high-performance loudspeakers. Every element of Dynamo subwoofers has been meticulously designed to deliver a staggering low-frequency performance – all without a hint of distortion.

ADVANCED ULTRA-EFFICIENT SWITCH MODE POWER SUPPLIES AND CLASS-D AMPLIFIERS

Dynamo subwoofer class-D amplifiers operate with extremely low levels of distortion and deliver dynamic impact with plenty of overhead. Low- noise, high-power switching power supplies produce clean power efficiently in a small space and effortlessly provide tremendous levels of current. Both feature high-quality MOSFET transistors, transformers, noise-suppression networks, and control circuitry. The switching power supply combined with reliable class-D technology means there’s virtually no energy lost in the subwoofer system.

Specifications

Specifications are subject to change without notice
Frequency Response30–200 Hz ±3 dB. Anechoic in LFE mode.
ImpedanceRCA: 8,300 Ohms Speaker Level: 2,000 Ohms (red to black)
Low Frequency Transducer8” (20.3cm) high-excursion, inverted surround, polypropylene cone in a stamped steel basket with extended throw driver assembly. Ported.
Amplifier75 Watts (150 peak)
Controls (Backplate)Level: Min–Max Low-Pass Filter: 35–120Hz, Bypass Phase: 0°, 180° Power Mode: On, Auto
InputsLine Level: Left, Right/LFE Speaker Level: Left and Right via banana jacks
Power DrawTypical: 20W, Max: 90W, Idle: 4W, Standby: 0.5W
FeetRubber
Weight28.5 lbs. (12.9 kg)
Dimensions15.2" x 13.3 " x 13.7 " (38.5 cm x 33.7cm x 34.8 cm)
FinishSatin Black