The ElectroMotion R is a premium high-performance in-ceiling speaker that uses a larger 8-inch aluminum woofer and angled Folded Motion tweeter for ultimate-performance in-ceiling applications. The speaker is rotatable to aim sound.
The powerful EM-R is our largest ElectroMotion in-ceiling speaker. Utilizing a massive 8-inch high-excursion, high-resolution state-of-the-art woofer specially designed for accurate in-ceiling bass performance, the EM-R delivers powerful low-end bass with accuracy, authority and extension uncommon to traditional in-ceiling loudspeakers.
MartinLogan's exquisite Folded Motion tweeter boasts a radiating surface 8-times larger than a typical 1" dome tweeter. The 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.
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 their housings.
Installers rejoice as the Folded Motion tweeter is mounted at an angle, allowing the entire speaker to rotate to aim sound precisely where you want it.
MartinLogan's new architectural speakers feature ultra-low profile, paintable micro perforated grilles with no visible bezel for an near invisible integration into any wall or ceiling. A magnetic system secures grilles easily into place, reducing the risk of warping or damage during installation.
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.
The EM-R is suitable for any application in small to large 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.
Specifications:
Application In-Ceiling
Frequency Response 37–25kHz ±3dB
Dispersion 80° x 80°
Sensitivity 92 dB/2.83 volts/meter
Nominal Impedance 4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers.
Recommended Amplifier Power 20-300 watts per channel
Crossover Frequency 2,600 Hz
High Frequency Transducer 1" x 1.4" (2.6cm x 3.6cm) Folded Motion Transducer with 5.25" x 1.75" (13.3cm x 4.4cm) diaphragm.
Low Frequency Driver 8" (20.3cm) aluminum cone with cast aluminum basket. Concave dust cap.
Weight 8lbs. (3.63kg) each
Overall Dimensions 11.5" (29.3cm) Diameter
6" (15.2cm) Depth
Cut-Out Dimensions 10.5" (26.7cm) Diameter
Depth Required Behind Wall Surface 5.9" (15cm)
Projection From Wall Surface .125" (.3cm)