Martin Logan ElectroMotion R – In Ceiling 8″ Speaker – Each
The ElectroMotion R is Martin Logan’s largest ElectroMotion in-ceiling speaker. With an 8-inch high-excursion, high-resolution woofer specially designed for accurate in-ceiling bass performance, the EM-R delivers powerful low-end bass with accuracy, authority, and extension.
Folded Motion™ Tweeter
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.
|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.|
|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)|