Hi there! Yes, the HW-Q900T Soundbar includes the subwoofer. The soundbar and subwoofer both need to be connected to a power source. The HW-Q900T is WiFi enabled, so you can wirelessly connect to your TV; however, you can also connect the soundbar via HDMI or Optical if you prefer. Connection will be seamless; ensure you select the soundbar as the "Source" on your TV for sound output. ^Gina