Consists of
Crystal 4 (5.0) https://www.vplak.com/wharfedale-crystal-4-home-theater-speakers-p4898
SW 150 (Subwoofer) https://www.wharfedale.co.uk/sw-150/
TX-SR393 https://intl.onkyo-av.com/receivers/av-receivers/tx-sr393