Putting in a dedicated power line. 2 receptacles ok?

I'm not following you. There are opposite legs in your breaker box for ground?
L1
L2
Common bus bar
(bridge bar (remove or leave) between common and ground)
Ground bus bar

Where is the second ground bus in a 220-240 single phase main?

+1 @oldhvymec .
We need an explanation.

in your breaker box you have two sides or rows of breakers. By having them on opposite sides the ground is then not interacting with each other which reduces noise. I had a master electrician do the install and it was his recommendation, it made sense to me that each circuit is independent of the other. I realize that only 3 wires come into the house and there is only one ground, but somehow he felt it was best.

But the ground and the neutral is common. Not independent.

@jea48 
Your thoughts on this comment?

Wiring 2 dedicated lines on separate legs is not recommended if the loads are to be shared, correct? 

in your breaker box you have two sides or rows of breakers. By having them on opposite sides the ground is then not interacting with each other which reduces noise.

@theo 
I think you got some bad advice if your video is connected to the audio system.

@jea48 
I think theo may be misquoting the electrician. I believe he has a line for his video setup on one leg, audio setup is wired to the other leg.

That's why I said ground and neutral is common. The video line and audio line use the same ground. There is no separate ground for each line.

@jea48 

Correct if by shared loads you mean,
when audio equipment’s signal grounds are connected together by wire unbalanced interconnects.

That's exactly what I meant.

@theo 
No worries, that's how I interpreted your post. And yes, as long as it works.