Harman Kardon HKTS-18 High-Performance, 6-Piece Home Theater Speaker System (Black Gloss) (Discontinued by Manufacturer) Dual 3" drivers, video-shielded 3/4" dome, video-shielded tweeter 10" woofer, bass-reflex enclosure 200W amplifier power (RMS) 8 ohm nominal impedence 200W amplifier power (RMS) 10" woofer, bass-reflex enclosure 8 ohm nominal impedence 3/4" dome, video-shielded tweeter Dual 3" drivers, video-shielded