Amazon.com: Logitech Z-5500 THX-Certified 5.1 Digital Surround Sound Speaker System : Electronics
THX products finder –THX Certified, THX AAA, THX Spatial Audio
Amazon.com: Monolith THX Certified Satellite Speakers (Pair) Compact Form Factor, Wall Mounting Keyhole, MDF Enclosures, Easy to Connect, for Home Theater or Gaming Systems : Electronics
KLIPSCH Promedia 2.1THX Satellite Speakers PAIR (no controller) | Accessories4less