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In-Ceiling Loudspeaker: The ElectroMotion R in-ceiling loudspeaker features MartinLogan's Folded Motion tweeter and a
8" aluminum cone woofer with cast
aluminum basket that provides powerful low-frequency bass extension. This
stealthy in-ceiling speaker blends seamlessly into any home thanks to it's
ultra-low profile, micro-perforated grille with no visible bezel.
Angled Folded Motion Tweeter: MartinLogan's Folded Motion tweeter
helps give the ElectroMotion IW in-ceiling speaker its natural, realistic high
frequency sound. Lightning fast transient response, combined with a large
surface area (8x that of a typical 1" dome tweeter) creates clear, dynamic, and
precise sound. The 1" x 1.4" Folded Motion tweeter works by moving air (which
creates sound) perpendicular to the folded ridges of the diaphragm, similar to
how an accordion works. This extremely low mass diaphragm "squeezes" air and
requires almost 90% less excursion than the typical 1" dome tweeter, which
drastically minimizes distortion while providing a lightning fast response time.
The increased surface area also provides a wide, yet controlled sound dispersion
to create a realistic and carefully etched sound stage. The Folded Motion
tweeter is mounted at an angle, allowing the entire speaker to rotate to aim
sound precisely where you want it.
Aluminum Cone Woofer: The ElectroMotion R in-ceiling speaker employs
a 8" aluminum cone woofer with a rubber surround, concave dust cap, and cast
aluminum basket for detailed midrange and powerful low-frequency bass extension.
Precision Vojtko Crossover: Carefully hand-built using only the finest
polyester capacitors and air-core coils, the crossover employ's MartinLogan's
proprietary Vojtko topology for vanishingly low distortion and seamless driver
integration. This precision-tuned network preserves even the most microscopic
sonic nuances while handling the full dynamics of any source.
Spring-Post Connectors: The MartinLogan ElectroMotion R
features two spring-post connectors to attach your speaker wire. The
spring-posts will accept bare wire (16- to 12-gauge) and pin-connectors.
Robust Mounting Locks: A robust mounting-lock system allows quick,
trouble-free installation. When not in use, the constant-control mounting locks
are held securely within a self-contained housing. When moved into place during
installation, they couple the speaker's chassis firmly to the ceiling. And if
the speaker is ever removed, the locks retract and latch themselves back in
Ultra-Low Profile Grille: The MartinLogan EM-R features an ultra-low
profile, paintable micro-perforated grille with no visible bezel for a near
invisible integration into any ceiling. A magnetic system secures the grille easily
into place, reducing the risk of warping or damage during installation.
Applications & Placement: The EM-R is suitable for almost any application in
average to small rooms. Ideal for use in a multi-channel home theater as a
surround speaker, in a kitchen as 2-channel stereo speaker, or in a hallway as part of a distributed audio system. This MartinLogan
in-ceiling speaker offers superb imaging and flexible placement in nearly any
location. However, for best performance and imaging place speakers equidistant
from one another and avoid physical obstructions between the speaker and primary
Installation Dimensions: The in-ceiling speaker has an
overall measurement of 11.5" in diameter x 6.0" deep. It requires a cut-out of
10.5" in diameter and a mounting depth of 5.9375" behind the ceiling surface.
The speaker only protrudes 0.125" from the ceiling.
Break-in Period: Allow approximately 72 hours of break-in at
90 dB (moderate listening levels) before any critical listening.