NS-A100
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The Natural Sound-A100 model loudspeaker is a high efficiency three-way floorstanding speaker manufactured by Yamaha that was sold with their 28 series components, or could be bought separately. The NS-A100 has a dark woodgrain finish on the top, sides, and bottom, and a black micropebble finish on the front. Speakers inside the cabinet consist of a 12-inch cast frame paper cone woofer, 4-inch paper cone midrange drive, and 3-inch paper cone tweeter.