Manufacturer's Description
Polk Audio Polk Audio FXi3 Black Pair Surround Speakers Surround Speakers
Design-enhanced surround diffusion characteristics on the new FXi Bi-Directional Surround Speakers include triangular cabinets that aim the drivers and tweeters in opposing directions to produce a more realistically diffuse wavefront and wide, lifelike imaging of surround-sound FX, and a conveniently located bipole/dipole switch for the most flexible placement options and highest performance surround effects.