How to switch from AUX to Bluetooth?
You need to switch to OFF and switch to BT/AUX again to enter the other digital audio input (Bluetooth or AUX) model.
How to switch from Bluetooth to AUX?
You just plug the AUX cable directly into the amplifier.
How to switch between Optical and COAX?
You need to switch to OFF and switch to COAX/Optical again to enter the other digital audio input (coaxial or optical) model.
How to connect to TV via Optical?
1. Remove the rubber protective cap on the optical cable, then connect the amplifier to the TV via the optical cable. 2. Switch the amplifier to the optical connection mode. 3. Turn on the digital output of TV and set your TV output format to PCM.