Bose Lifestyle 12 ' Media Center subwoof connects 9 Pin to 9pin Audio Input Cable Male Bose PS28 III subwoofer to media center AV18 and MC 1; Bose PS38 III subwoofer to media center AV38 and MC 1; Bose PS48 III subwoofer to media center AV48 and MC 1; For Lifestyle Systems Series III, IV, T, & V35/v25/135 connects the subwoofer to the media center unit in Lifestyle series systems part # 302580-1001 Bose 9 pin to 9pin audio input cable.