THX Certified Dominus speakers bring cinema-quality sound to home theaters
Amazon.com: Monolith THX Certified 8in 150-watt Powered Subwoofer, Deep and Powerful Bass, Compact Design, Quick and Easy to Setup, for Home Theater or Gaming Systems : Electronics
Logitech Z625 2.1 Gaming Speaker System - THX Certified
Amazon.com: Monolith THX Certified Satellite Speakers (Pair) Compact Form Factor, Built-in Keyhole for Mounting, MDF Enclosures, Easy to Connect, for Home Theater or Gaming Systems : Electronics