Vintage YAMAHA NS-410 Speaker Pair Audiophile Speakers HiFi Original Japan. Bookshelf convenience 4-channel rear speaker adaptbility natural Sound performance. yamaha NS-410 NS sound. you've heard of the great things it does for music, broadcasting every note with full, rich harmonics, incredibly brilliant highs and sonorus lows. now it's yours in ultra-compact bookshelf wall mount speakers perfect for small-room stereo or as rear speakers for the finest 4-channel systems. A new Yamaha breakthrough brings you the same Natural Sound we pioneered with our world-famous flat types, in these lighter, more compact cone speakers. JA - 2054 of 20 cm cone type Woofer is carried in low - pass. Cone paper is made of pulp and wool blended material with large internal loss, and by using rubber type damping material in combination, suppression of divided vibration. Phenol rubber type support material is applied to the edge and the dip of the frequency characteristic generated from the vicinity of the edge is prevented. In the high region, JA - 0507 of a show with a structure close to the dome type and a tweeter with horn mixed with horn type and cone type is carried. Mylar is adopted as the diaphragm, bobbin is removed to lighten the vibration system, and the diaphragm and the aluminum ribbon wire edgewise voice coil are directly connected. Furthermore, a brake element made of expanded urethane was tried between the diaphragm and the center pole, and excellent high frequency characteristics were obtained. Also, the directivity is improved by a special section close to the dome. Specifications: Type: 2-way 2-speaker Frequency: 85 Hz - 18,000 Hz Output Sound Pressure Level: 94 dB / W / m (New JIS) The Lowest Resonance Frequency: 85 Hz Drivers: For low-pass: 20 cm cone type (JA-2054) For high range: dome type (JA - 0507) Crossover: 5 kHz, 6 dB/oct, 12 dB/oct Impedance: 8 ? Dimensions: 310 x 488 x 180 mm. Weight: 6,5 kg