With the latest firmware update for Spark LIVE, you can now adjust the line-out behavior directly in the Spark app! Follow these steps:
1. Update the Spark app to the latest version
2. Connect your Spark LIVE to the Spark app.
3. Go to the Menu tab and tap on the product card.
4. Turn off the "Line Out Mute Behavior".
*On is muted, off is unmuted.