The Yamaha NS-6490 bookshelf speakers are workhorses, handling up to 140 watts, they will take whatever you throw at them. These speakers work well in a stereo configuration or in your home theater system as left and right channels. When using these speakers for home theater purposes, feel confident that their magnetically shielded design will not interfere or distort your television image.
Expect less bass distortion from the acoustic suspension design when your music or movies hit the low frequencies. By using the elastic cushion of air within the sealed enclosure, physical stiffness of the woofer is reduced.
Specifications: • Power handling: 70 watts RMS/140 watts max • Impedance: 8 ohms • Frequency response: 45-23,000 Hz • Sensitivity: 90 dB 2.83V/1m • Dimensions: 10-1/2" W x 16-1/5" H x 13-1/5" D.