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. The increased surface area also provides a wide, yet controlled sound dispersion to create a realistic and carefully etched sound
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