You’ll also need a streaming media player that can passthrough DTS:X to that sound system (if the sound system has its own HDMI input), and/or a TV that can decode or passthrough DTS:X.
There are also certified DTS:X-enabled AV receivers by Denon, Marantz, and JBL. Without a model that can decode DTS:X, you'll still be able to watch the film in IMAX Enhanced (given your TV ...