KSC-510CTR Active Centre Speaker Amplifier IncludedSpeaker level Input Subs & Component Speakers KFC-XS1704XS-series, Hi-Res Audio Certified, 17cm Component SpeakerKSC-PSW8Compact Powered SubwooferPA-W801B200mm powered oversized, down-firing, subwoofer in ported enclosure with high efficiency D-Class amplifierKFC-PS3017WPS-series 30cm subwooferKFC-WPS1200F30cm Component Shallow WooferKFC-PS2517WPS-series 25cm subwooferKFC-W112S30cm Component SubwooferKSC-SW11Powered SubwooferKFC-E170P17cm Component speaker systemKFC-E130P13cm Component speaker system