I hope somebody experienced in this area chimes in, but I don’t think a tandem circuit breaker should be used in this situation.... the 2 dedicated lines would be on separate legs.
IME, audio AC lines should be on the same phase and the current draw of devices in the home should be evenly distributed across both legs on the panel.
Unless I’m wrong, you would need to put each dedicated line on their own breaker with ground tied from the ground buss to each receptacle (not self grounded).
IME, audio AC lines should be on the same phase and the current draw of devices in the home should be evenly distributed across both legs on the panel.
Unless I’m wrong, you would need to put each dedicated line on their own breaker with ground tied from the ground buss to each receptacle (not self grounded).