MartinLogan Motion 40 Gloss Black Floorstanding Loudspeaker (Each) Folded Motion Tweeter "squeezes" air and requires almost 90% less excursion than the typical 1" dome tweeter, drastically minimizing distortion while providing a lightning fast response time The innovative Folded Motion Tweeter is engineered with a large surface area (8-times that of a typical 1" dome tweeter) to create clear, highly dynamic and precise sound Elegant yet understated styling with a flawless high-gloss finish and aesthetic certain to blend with any dcor Precision built advanced topology Vojtko crossover and high-performance aluminum cone woofers Audiophile-grade 5-way bi-wire binding posts provide a secure connection and ETC (Energy Transfer Coupler) spikes couple to the floor for a solid bass performance