Yamaha NS-6490 3-Way Bookshelf Speakers Finish (Pair) Black These 3-way speakers can be added anywhere in your home component sound system front or rear speakers, even as auxiliary speakers for another room Each speaker enclosure has 3 drivers - an 8 woofer/ a 4 midrange/ a 0.75 dome tweeter that work together to provide an 45Hz to 23Khz frequency response range Magnetically shielded to suit home-theater applications