Dynamo Series Powered Subwoofer: The MartinLogan Dynamo 1500X powered
subwoofer features advanced MartinLogan engineering including a 650 watt (1300
watt peak) amplifier and a 15" low distortion woofer with a powerful magnet
structure to deliver huge excursion and output while preserving subtle bass
detail. XLR, RCA, and 12-volt trigger inputs guarantee connection flexibility
while simplifying system integration. It can be configured as a down-firing or
front-firing powered sub.
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 650-watts of continuous power (1300-watts peak).
Powerful, High-Excursion 15" Woofer: The Dynamo 1500X
powered sub features advanced MartinLogan design concepts. A high-resolution,
low-distortion 15" polypropylene woofer delivers huge excursion and sound output while
preserving minute bass details, all without a hint of distortion. The cone
material's exceptional damping properties ensure the smooth, non-resonant
response necessary for seamless blending with MartinLogan electrostatic panel
and Folded Motion driver technologies 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 1500X'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 1500X maintains a smooth, consistent response regardless of music or
movie source material.
Perfect Bass Kit (PBK) Ready: Although correct placement
plays a key role in optimizing subwoofer performance, positioning a subwoofer
often requires compromises. Not anymore, thanks to MartinLogan's Perfect Bass
sold separately). The Dynamo 1500X is MartinLogan's first powered sub to feature
PBK room correction. PBK uses a computer and microphone to listen throughout the
listening environment and tailor the sub's performance to the unique acoustic
properties of a room; resulting in clean, powerful bass down to 20Hz.
Front-Firing or Down-Firing Configuration: To maximize
performance when installed inside of a cabinet or other discrete installation,
the Dynamo 1500X'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):
16.75" (w) x 18.3125" (h) x 18.0625" (d)
- Front-Firing Orientation:
16.75" (w) x 19.3125" (h) x 18.0625" (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 1500X
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 40 to 150 Hz. For systems in which
the AV receiver supplies the low-pass crossover, the Dynamo 1500X offers an LFE
input (via either XLR or RCA) that bypasses its internal filters. The phase
control can be set to 0, 90, or 180-degrees. Additionally, a 3.5mm trigger input
allows your AV receiver to turn the Dynamo 1500X on/off via a 12V trigger
Energy Transfer Coupler (ETC) Spikes: The Dynamo 1500X 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 1500X subwoofer 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