Sony SS-MB350H Bookshelf Speakers (Pair) (Discontinued by Manufacturer) 3-way, acoustic-suspension (sealed-cabinet) bookshelf speaker with 120-watt maximum power handling, 8-ohm speaker impedance 3.25-inch and 8-inch Kevlar/HOP (high strength, low weight, and low resonance) drivers and a 1-inch tweeter Nano-Fine balanced-dome tweeter rated to 50 kHz; bass response extends to 50 Hz Includes 2 lengths of 8-foot speaker cable and removable speaker grilles Measures 9.5 x 20.8 x 10 inches (W x H x D)