The "USB C - 3.5mm jack" cable is not directly suitable for connecting a TV box to a soundbar, as it is intended for connecting devices with a USB-C connection to devices with a 3.5mm jack. To connect a TV box to a soundbar, you usually need a cable that connects the output interface of the TV box (e.g. HDMI, RCA or jack) to the input interface of the soundbar. If the TV box only has a USB-C connection, a USB-C to HDMI or RCA adapter may be required to connect it to the soundbar.

According to my research, the Creative Stage SE is designed for PCs or consoles, apparently the audio host must actually be via USB.

the tv-box has a jack for audio and the Creative Stage SE soundbar only has usb c in. Is there a connection option? Possibly Goobay USB adapter audio jack plug?