BluJav Reviews: How good is the Logitech Z906 subwoofer as a...well, a subwoofer? A detailed look...
Logitech Z906 5.1 Surround Sound Speaker System - THX, Dolby Digital and DTS Digital Certified - Black & Bluetooth Audio Adapter : Amazon.ca: Electronics
REPLACEMENT Subwoofer for Logitech Z906 5.1 Sound System
Logitech Z906 5.1: I can't believe my ears! - Lebois Racing
Logitech Z906 5.1: I can't believe my ears! - Lebois Racing
LOGITECH Z-5300 THX 5.1 SATELLITE PC SPARE SPEAKERS ONLY NO SUBWOOFER SYSTEM | eBay