£695

ElectroMotion R

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 Sound of Invisibility

The ElectroMotion® Architectural Series features our award-winning compact Folded Motion® thin film transducer technology, bringing a new standard in acoustical performance to in-wall and in-ceiling applications. Designed for those seeking the world's most articulate and dynamic multi-channel home theater systems, or simply a stealthy 2-channel system, the Architectural Series speakers are voice and timbre matched with one another, as well as the rest of the MartinLogan line of ultra-premium electrostatic and Folded Motion speakers.

Folded Motion® Tweeters

Folded Motion Tweeters work 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.

Installer Friendly

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.

Specifications

Specifications are subject to change without notice
Frequency Response37–25kHz ±3dB
Recommended Amplifier Power20—300 watts per channel
Horizontal Dispersion80°
Vertical Dispersion80°
Sensitivity92 dB/2.83 volts/meter
Impedance4 Ohms Compatible with 4, 6, or 8 Ohm rated amplifiers.
Crossover Frequency2,600 Hz
High Frequency Transducer1" 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 Transducer8" (20.3cm) aluminum cone with cast aluminum basket. Concave dust cap.
ComponentsCustom air core coil inductors. Polyester film capacitors in series and low DF electrolytic capacitors in parallel. Overall system thermal/cur- rent protection.
InputsPush style binding posts with banana jack.
Weight8 lbs. (3.63 kg)
Cut-Out Dimensions10.5" dia. (26.7 cm dia.)
Projection From Wall Surface.125" (.3cm)
Depth Behind Wall Surface5.9" (15 cm)