Wharfedale Atlantic 100 Compact Bookshelf Loudspeaker (Maple with Black Accents, 1 pair) (Discontinued by Manufacturer) Ideal for use with mini, MIDI, and micro systems or as rear surround speakers 100 watts RMS power handling 170-millimeter bass driver, 28-millimeter tweeter dome 6 ohms nominal impedance 60 Hz-20 kHz frequency response