Athena Micra-6 6-Piece Home Theater Speaker System, Silver/Black (Discontinued by Manufacturer) Bass-reflex surround sound speaker system with 4 satellite speakers, center speaker, and subwoofer Each satellite offers 3.5-inch polypropylene cone woofer and 0.5-inch textile tweeter Down-firing 8-inch subwoofer features forward-firing bass vent for strong bass response Overall frequency response of 30 Hz to 20 kHz; recommended amp power of 20 to 100 watts Magnetically shielded; includes satellite and center mounting brackets; 5-year warranty