What is CEC support?
CEC stands for “Consumer Electronics Control.” It allows multiple AV devices connected via HDMI to communicate with one another, enabling you to control each of them with a single remote control.
When you use the HAX05 with a TV and soundbar that also support CEC, you’ll need only your TV’s or only your soundbar’s remote in order to adjust your audio settings. Please note that this only applies when bypassing audio to the sound system via HDMI, as OPT / RCA / AUX inputs do not support CEC.