The Yamaha NS-777 Floorstanding Speaker has dual 8" polymer-injected mica diaphragm (PMD) woofers, a 5" cone midrange driver with a waveguide horn, and a 1" aluminum dome tweeter with a waveguide horn. The system features a Highly Oriented Polyolefine design for improved transient response, higher power handling, and flatter frequency response. The speaker is magnetically shielded to allow placement near a TV without distorting the image.Yamaha's NS-777 speaker system has been designed specifically for home theater applications. The floorstanding speaker is a bass reflex design that can be used for main channels and incorporates a pair of 8" polymer-injected mica diaphragm (PMD) cone woofers, a 5" midrange cone driver, and a 1" aluminum dome tweeter. For improved imaging, the midrange and tweeter utilize Yamaha's exclusive waveguide horns.