If your AV system or speakers, such as a sound bar, has an HDMI port, you can connect them to the projector using an HDMI cable (with Ethernet) to output audio to these devices.

 

Epson CH-LS12000B

When the AV System is connected to the projector, set HDMI Link to On

. Signal I/O > HDMI Link > HDMI Link

See the Supplemental A/V Support Specification for eARC/ARC audio supported formats.

Connecting to an eARC/ARC Compatible AV System or External Speakers

Connecting to an eARC/ARC Compatible AV System or External
Speakers
  1. Connect the HDMI cable to your AV system’s or speakers’ HDMI output port (eARC/ARC compatible).
  2. Connect the other end to the projector’s HDMI2 (eARC/ARC) port.
  3. Make any necessary settings on the connected AV system. See your device’s documentation for more information.

Read more:

Epson CH-LS12000B Computer Connecting Guide