Dynamo Series Powered Subwoofer: The MartinLogan Dynamo 700w
powered subwoofer offers audiophile grade performance and home-friendly
aesthetics. Featuring a high-current 300-watt RMS (600-watt peak) amplifier and
cone driver, the Dynamo 700w delivers deep, tight, effortless bass for movie and
music soundtracks. It can be configured as a down-firing or front-firing powered
sub. The 700w offers both a wired and wireless powered subwoofer connection to
your home AV entertainment system.
Advanced, Ultra-Efficient 300-Watt Amp: The Dynamo 700w's
ultra-efficient, high-power amplifier uses variable audio tracking power
supplies to drive its class AB output stage. With lower distortion and less
noise than typical Class D switching amplifiers, this advanced design allows the
amplifier to operate at much higher efficiencies than a typical class AB
amplifier, delivering a true 300-watts of continuous power (600-watts peak).
High-Resolution, Low-Distortion 10" Woofer: The Dynamo 700w's
advanced-technology driver pairs a high-power magnet structure with a 10"
diaphragm to deliver huge excursion and sound output while perfectly preserving
the tiniest bass detail; and all without a hint of distortion. The exceptional
damping properties of the poly cone material also ensure the smooth, non-resonant
response necessary for truly seamless blending with MartinLogan's electrostatic
panel and Folded Motion driver technologies found in their loudspeakers.
Inverse Mathematical Equalization (IME) Filtering: An IME filter is
derived from the inverse of the unfiltered driver response. Precision IME
filtering yields extremely accurate low-frequency response; far superior to that
provided by the simple second-order high-Q filters typically found in subwoofers
in this price range.
Sealed Cabinet w/ Internal Bracing: On the outside, the Dynamo
700w's cabinet is constructed from the finest composite material for acoustic
integrity. Inside, critically placed structural cross-bracing acts an excellent
baffle for the woofer while the added rigidity keeps cabinet-induced resonances
and non-linearities to inaudible levels. As a result the MartinLogan Dynamo 700w
maintains a smooth, consistent response regardless of music or movie source
Front-Firing or Down-Firing Configuration: To maximize performance
when installed inside of a cabinet or other discrete installation, the Dynamo
700w's standard down-firing configuration easily converts into a front-firing
orientation; no tools required. A grille cover and 90-degree RCA adaptors are
provided for use in front-firing applications. Dimensions:
- Down-Firing Orientation (default): 11.6875" (w) x 12.5625" (h) x
- Front-Firing Orientation: 11.6875" (w) x 13.5" (h) x 12.3125" (d)
Note: If placing the powered subwoofer inside of a cabinet, it is
recommended that there be a minimum of 3" of open space between the cabinet
and the front and back sides of the powered sub.
Seamless System Integration: Comprehensive connection options,
low-pass filtering, and phase control make integrating the Dynamo 700w subwoofer
into a multi-channel 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 35 to 120 Hz. For systems in which the AV
receiver supplies the low-pass crossover, the Dynamo 700w offers an LFE input
that bypasses its internal filters. The phase control can be set to 0, 90, or
Built-in Wireless Receiver: Although correct placement plays a key
role in optimizing subwoofer performance, sometimes it imposes the inconvenience
of running long lengths of cable through walls, along baseboards, or under
floors and carpets. To solve the problem, the Dynamo 700w incorporates a
wireless receiver (digital RF transmission) for use with the included SWT-2
MartinLogan Subwoofer Wireless Transmitter which plugs into the subwoofer or LFE
output of your home receiver or active soundbar speaker via stereo RCA (cable
Energy Transfer Coupler (ETC) Spikes: The Dynamo 700w comes with
custom ETC spikes which can be used along with the pre-installed rubber feet to
enhance stability on thick carpets, or create tighter coupling between subwoofer
and floor to enhance overall sound quality. The spiked feet add 0.625" of height
to the powered sub.
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 700w 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 judgment.