PRODUCT OVERVIEW
3-Way Bass-Reflex Tower Speaker System. The EF (Elliptical Form) Series feature Waveguide horns, PMD (Polymer-injected Mica Diaphragm) woofers and highest quality internal Monster Cable wiring for total enjoyment of digital movie sound and music sources, plus elegant Yamaha traditional piano finish cabinets.

3-Way / 4-Driver Bass Reflex Speaker System
The 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 exclusive Yamaha waveguide horns.

Waveguide Horn
Unlike most homes, movie theaters use sound absorbing materials on walls and ceilings. The result is that the sound reaching your ears is the sound wave produced by the speakers rather than reflected off the walls. Yamaha has created waveguides that greatly reduce reflected sound and increase the proportion of directly generated sound waves reaching your ears. The result is a clear and precise sense of sound direction and placement.
Internally Wired with Monster Cable?
Yamaha has chosen to ensure optimum sound quality by internally wiring some of the components with Monster Cable?. This ensures a clean, clear signal from the crossover network to the speaker drivers.