My system was purchased in 2012 and I have a SW-110. I just upgraded my AVI and would like to add an additional sub. I've contacted Klipsch and they advised getting the
Klipsch Reference R-101SW 10" powered subwoofer at Crutchfield
Klipsch R-12SW Front Firing 400-Watt Max Powered Subwoofer Amp and Power Supply | eBay
My klipsch Subwoofer wont turn on - Home Theater - The Klipsch Audio Community