MartinLogan Motion FX Surround Speaker (Black -Single Speaker) Folded Motion Tweeter Advanced Vojtko Filtering Wall-mount 5.25-inch paper cone woofer 160 degree wide dispersion perfect for surround applications Folded Motion Tweeter "squeezes" air and requires almost 90% less excursion than the typical 1" dome tweeter 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 Dual Folded Motion design provides wide-dispersion ideal of high-performance surround channel application Convenient push-style speaker terminals and curved inserts help guide speaker wire effortlessly into place, with removable rubber end caps on the terminal for the use of banana plugs instead of bare wire Capable of both corner mounting and flat or angled mounting on any wall surface.