Sony SS-MF650H 3-Way Floorstanding Speakers (Pair) (Discontinued by Manufacturer) 3-way, ported (bass-reflex) floorstanding speaker with 180-watt maximum power handling, 8-ohm speaker impedance 3.25-inch and dual 6.5-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 40 Hz Includes 2 lengths of 8-foot speaker cable and removable speaker grilles Measures 8.8 x 37.5 x 10.1 inches (W x H x D)