You can connect speakers to your Vision via HDMI ARC or S/PDIF.

1. Via HDMI ARC: You can use the remote control of the Vision to adjust the volume of the speaker.
2. Via S/PDIF: When Output is set to S/PDIF and Digital output is set to RAW (from Settings > Sound), the Vision sends the sound signals to the speaker via the passthrough technology. In this case, you cannot adjust the speaker volume using the remote control.
3. Via S/PDIF: When Output is set to S/PDIF and Digital output is set to PCM (from Settings > Sound), you can adjust the speaker volume using the remote control.
   

   Check the system version: On the Vision home screen, go to All apps > Settings > System > About/Support.

   Update the system version: On the Vision home screen, go to All apps > Settings > System > Software update. If a new version is found, a prompt will be displayed. Follow the onscreen instructions to update the Vision.

4. Via S/PDIF: When Output is set to S/PDIF and Digital output is set to Auto (from Settings > Sound), you cannot adjust the speaker volume using the remote control. However, this will be optimized later. Stay tuned for system updates.