Subwoofers PC-SUB WL10 WH PhaseTech 10" Wireless Subwoofer in Modern White | Phase Technology
Amazon.com: Cyber Acoustics CA-3610 2.1 Multimedia Speaker System with Subwoofer, Perfect Computer Speakers for PC or Mac, Great for Music, Movies, and Gaming : Electronics
Logitech Z313 Computer Speaker System with Subwoofer