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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.
The Yamaha NS-555 tower speaker is specifically designed for home theatre applications. The floor-standing speaker features a three-way bass-reflex design appropriate for main channels that incorporates a pair of 6-1/4-inch polymer-injected mica diaphragm (PMD) cone woofers, a 5-inch midrange cone driver, and a 1-inch aluminium dome tweeter. For improved imaging, the midrange and tweeter utilize Yamaha's exclusive waveguide horns, which significantly reduce reflected sound and increase the proportion of directly generated sound waves reaching your ears. This compensates for the lack of sound-absorbing materials on the walls of most homes. The result is a clear and precise sense of sound direction and placement that replicates the sound produced in commercial movie theatres.
The NS-555 speaker boasts optimum sound quality by featuring Monster Cable internal wiring among several components, ensuring a clean, clear signal from the crossover network to the speaker driver. To further maintain signal purity, Yamaha provides the bi-wiring capability, delivering separate +/- terminals for the woofer(s) and another driver (s). The separation reduces modulation distortion and improves sound quality. In addition, the speaker is magnetically shielded, so you can place it on a TV or video monitor without degrading the picture via stray magnetic fields.
The speaker comes with a matching speaker stand that provides the solid footing necessary for full floor contact, enhanced stability, and minimal vibration resonance. The stand is also an attractive complement to the cabinet. The speaker's performance is enhanced by its solidly constructed elliptical form cabinet (with a high-gloss, black piano finish), which diffracts a minimum of sound. The speaker also features a new grille design and cloth that serves as an attractive and acoustically transparent protective cover for the drivers.