Advantage using one electrical leg for audio system?

2 lets with seperate grounds could lead to or contribute to a ground loop. I have both legs available so I put junk loads on one leg and important loads on the other.

PS  I use a bipolar breaker too since I also have a 240v outlet at my stereo location.

If it bothers you, an electrician can probably move wires around in your panel to keep both lines on the same leg.

If you have already listened to the system and don't detect any noise or ground loops, I wouldn't worry about it.

The ground buss bars on either side of the breakers are connected, so how can there be two separate grounds.