I do not own an AURENDER W20 but found the info below:
“The “CLOCK IN: INVALID” message on the Aurender W20 indicates a synchronization issue with the clock signal. This problem can cause the music to drop or cut out intermittently. To resolve this, ensure that all connections are secure and that the clock settings are correctly configured. If the issue persists, contacting Aurender support for further assistance may be necessary”.
“There are specific settings in the Aurender W20 that need adjustment for clock synchronization:
1. Clock Synch Setting: In the W20 settings menu, you must enable the Clock Synch feature to ensure proper synchronization with external clocks.
2. RS232 Control: Use the RS232 control to toggle the clock frequency settings to match the data rates, such as 44.1kHz or 48kHz, to prevent synchronization issues.
3. Conductor App Settings: Verify and adjust settings in the Aurender Conductor app, as certain configurations might be necessary depending on the version of the app”.