JBL Northridge E90 3-Way Dual 8-Inch Floorstanding Speaker, Single (Black Ash) (Discontinued by Manufacturer) Designed for use with amplifiers driving up to 225 watts per channel (maximum); offers high 91 dB sensitivity Uses a .75-inch titanium-laminate dome tweeter, a 4-inch PolyPlas midrange cone, and dual 8-inch PolyPlas bass drivers 36 to 20,000 Hz frequency response Sold as a single speaker; buy 2 for stereo or 5 for a complete, full-range surround speaker system; video shielded for use near TV or monitor Measures 9.875 x 40.25 x 14.5 inches (W x H x D)