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Dynamo Series Powered Subwoofer: Perfect for either home
theater or stereo applications, the MartinLogan Dynamo 500 powered subwoofer is
solidly built with high-density materials to minimize cabinet resonance and
provide a foundation for the high-output 10" woofer and high-current 120-watt
RMS (360-watt peak) amplifier. Additionally, dual rear-mounted low-turbulence
ports maximize bass output while minimizing port induced distortion.
120-Watt RMS (360-Watt Peak) Amplifier: The MartinLogan Dynamo 500's
amplifier belongs to a recently-developed class of switch-mode designs that
incorporate a variety of innovative techniques to reduce noise, distortion, and
heat to the lowest possible levels. In particular, the switching frequency is
much higher than in typical subwoofer amplifiers of this type, providing a
tremendous true 120-watts continuously (360-watts peak) with extremely low
Low-Distortion 10" Woofer: The Dynamo 500's high-resolution
front-firing driver combines a 10" polypropylene cone with a high-intensity
magnet structure to achieve huge excursion and output capability without
sacrificing detail. By eliminating cone flexure, even at long voice-coil
excursions, the Dynamo 500's advanced-technology bass driver achieves the very
low distortion necessary for proper blending with MartinLogan's Folded Motion
and electrostatic speakers.
High-Density Cabinet Construction: The powered subwoofer's cabinet is
constructed from the finest composite material for acoustical integrity and is
finished with an attractive wood-grain vinyl coating.
Dual Low-Turbulence Ports: Ports are a convenient and
cost-effective way of increasing low-frequency output. The Dynamo 500's dual
low-turbulence ports are carefully designed to provide superb low-end efficiency
while minimizing port induced distortion.
Seamless System Integration: Comprehensive connection
options, low-pass filtering, and phase control make integrating the Dynamo 500
subwoofer into a multichannel home theater or stereo music setup simple and
seamless. The main left/right line-level inputs feed into a precision low-pass
filter with a cut-off frequency variable from 50 to 200 Hz. For systems in which
the AV receiver supplies the low-pass crossover, the Dynamo 500 offers an LFE
input that bypasses its internal filters. The phase control can be set to 0- or
Auto Power On/Off: The powered subwoofer will automatically
enter a power saving mode when no audio signal is detected. The subwoofer will
automatically come out of power saving mode when an audio signal is detected.
Break-In Period: The Dynamo 500 woofer requires
approximately 50 hours of break-in at moderate listening levels before its
optimal performance occurs. This will factor in on any critical listening and