KLH HT-9900 6-Piece Home Theater Speaker System (Discontinued by Manufacturer) Home theater speaker system with subwoofer, center channel, and 4 satellites Use with 10-to-100-watt-per-channel amplifiers Passive subwoofer with high-pass filter for satellites (ensures optimal crossover point between low and high frequencies) Center-channel speaker magnetically shielded for distortion-free placement atop or below a TV or monitor Cables included