Amazon.com: Klipsch R-100SW 10" Subwoofer, Incredibly Deep Bass and an All-digital Amplifier,14 5" x 12 5" x 16 4" : Electronics
Amazon.com: Klipsch Reference R-101SW 10” Front-Firing Subwoofer with All-New Spun-Copper 10” woofers and an All-Digital Amplifier for Premium Home Theater Sound in Black : Electronics