Does the TITAN support connecting to an AV amplifier via HDMI eARC?

Yes. The TITAN is equipped with an HDMI eARC port for connecting to an AV amplifier. 1. Use an HDMI cable to connect the projector’s HDMI eARC port to the AV amplifier’s HDMI ARC port. 2. Press the “Setting button" on the remote control to open the system settings, then select “Sound” → “Sound output.” Make sure the output is set to ARC audio output. The Audio output format supports three options: PCM / Passthrough / AUTO. 3. In the AV amplifier’s settings, also make sure it is set to receive audio via ARC. Notes: ① To use HDMI eARC, it is recommended to use an HDMI 2.1 cable. In the projector’s system settings, go to “Sound” → “eARC mode” and set it to “Auto.” Also, ensure that the AV amplifier supports HDMI eARC. ② The HDMI ARC port is usually located in the HDMI OUT section of the AV amplifier. If there is no ARC-labeled port, consult the amplifier manufacturer’s customer support to confirm whether your model supports HDMI ARC.