Premium Premium Definitive Technology Dymension DM40 Slim Bipolar Tower Speaker - Great Deal! - Great Deal!

Bipolar driver array: fully balanced design — two identical sets of drivers for the front and rear: 1" aluminum oxide dome tweeter with Teteron (cloth) suspension for smooth, extended highs dual 4-1/2" mid/bass drivers back-panel switch lets you set rear-firing drivers for "balanced" or "forward-focused" sound profile Specs: frequency response: 55-23,000 Hz (-3dB) recommended amplifier power: 50-250 watts sensitivity: 87 dB impedance: 4 ohms