Huge Sonic Performance in a Compact Cabinet
MartinLogan's Motion 15 compact speaker packs a huge amount of sonic performance into a modest-size cabinet. Designed to match the elegant aesthetic of MartinLogan's Motion 20 and Motion 40 floorstanding speakers, Motion 15 is voice-matched with the entire Motion Series to allow you to build a two-channel or home theater system piece-by-piece. Motion 15 features rounded edges, a gently tapered top, and luscious high-gloss finishes.
The Motion 15 combines a 5.25" high-excursion, black aluminum cone woofers and low-turbulence, rear-firing, bass ports, providing an extended, powerful bass performance. MartinLogan's Folded Motion tweeter creates clear, highly dynamic, and precise sound. Premium, five-way binding posts assure a solid connection.
The MartinLogan Motion Series
Inspired by MartinLogan's ultra-high-end electrostatic loudspeakers, the Motion Series was created to provide stunning sound for your ultimate-performance home theater or stereo. MartinLogan's dedicated in-house engineers carefully crafted the Motion Series to create an extremely affordable and compact product line that seamlessly blends the company's exquisite Folded Motion™ transducers with powerful, compact bass technology. The result is a smooth, refined sound with stunning dynamic range and jaw-dropping clarity.
Engineering Genius
What makes the Motion Series sound so amazing? MartinLogan's dedicated in-house engineering team started by utilizing and refining the most advanced, compact technologies and combining them with innovative engineering. The result is an emotionally engaging sound that rivals (and most times trounces) traditional loudspeakers of similar size and price.
Folded Motion™ Tweeter
MartinLogan's exclusive and highly innovative Folded Motion™ Tweeter helps gives Motion speakers their fantastically realistic highs. Lightning fast transient response, combined with a large surface area (eight-times that of a typical 1" dome tweeter) creates clear, highly dynamic, and precise sound.
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 percent less excursion than the typical 1" dome tweeter, which drastically minimizes distortion while providing a lighting fast response time. The increased surface area also provides a wide, yet controlled sound dispersion to create a realistic and carefully etched sound stage. | 
