The Yamaha NS-777s are floor-standing three-way bass reflex speakers that would be an asset to any home theater. They are magnetically shielded for safety and picture integrity if placed near enough to a TV or monitor. They also have waveguide technology that controls sounds that may reflect off surfaces and thus distort the pure audio experience. With their slim, bookshelf-like form factor, the Yamaha NS-777 speakers hide behind furniture easily. Alternatively, they enhance a home theater’s look with their piano-like black exterior. If you’re looking for well-rounded, four-way main speakers, the Yamaha NS-777s may be the ones for you. The Yamaha NS-777 speakers have three-way bass reflex, which is driven by two 8-inch mica diaphragm cones manufactured using polymer injection techniques. They also have one 5-inch cone driver for mids and a 1-inch tweeter for higher ranges. The audio from the midrange driver is mixed in using Yamaha’s waveguide horns. These are designed to eliminate “unwanted” noise, such as reflected sound from the home theater system or room, and enhance the direction of the desired audio. The waveguide horn is also connected to the tweeter, in order to reproduce soundtrack or musical audio in their ranges accurately. The speakers’ grille and cloth covering are acoustically neutral while offering adequate protection for all four drivers. The speakers are wired with Monster Cable for further enhancements in the audio experience. They are also bi-wired, which means the drivers’ positive and negative cables are separated for increased sound integrity and quality. The Yamaha NS-777 speakers can deliver a frequency response of 30-35,000Hz, with a 6-ohm impedance rating and a sensitivity rating of 89 dB or 2.83 volts per meter. It weighs 53.8 pounds and is 43-5/16 inches in height, 10-7/8 inches in width, and 15-3/8 inches in depth. These ranges are due to its elliptical construction. Each speaker requires a nominal 100 watts of power, although this can increase to as much as 250 watts under heavy musical load. The speakers are powered by Dolby Digital receivers, for accurate, clear sound reproduction. This also allows for excellent stereo sound while using a pair of these speakers. Dolby Digital also offers enhanced surround and driver matching in all ranges. The Yamaha NS-777s offer quality standalone sound, although they can be paired with other electronics and accessories, such as subwoofers or headphones, for a customized sound experience. The Yamaha NS-777s are standing speakers with a tweeter, two mid-range cones and two woofers for three-way bass reflex. They are main speakers but integrate into an arrangement that includes other electronics such as subwoofers. The Yamaha NS-777s can be placed freely on the floor, thus making an excellent home theater accessory (or hidden speakers, if you prefer) but also come with speaker stands. The drivers are wired for high-quality sound and have bi-wiring technology to counteract any negative effects of audio modulation. The Yamaha NS-777s also incorporate a waveguide for cinema-quality, well-directed sound. These speakers have an even frequency response and impressive sensitivity.