Putting in a dedicated power line. 2 receptacles ok?

I assume you mean a double duplex (2 port outlet)or two separate duplex outlets. I would stay with one outlet/duplex. What I did is 1 20 amp for audio and 1 20 amp for video with the grounds on opposite legs in the breaker box.

Sorry, 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.

Yes my terminology was incorrect. And I do have 2 circuits on different legs, sides , whatever it is called. And it has worked well for a number of years. After all these years I can’t quote my electrician verbatim. But as mentioned, maybe the simplest way o explain is Audio is a 20 amp circuit on the left side of the breaker box and video is 20 amp on the right side of the box.

sorry for any confusion

Jea48, he did two separate runs of Romex. These are not directly across from each other as he did them about a year apart. Once I did the audio I decided later at a dealers advice to add the second circuit. And they end up on separate walls due to the room layout.

thanks Lowrider, my thoughts exactly. And the plus is I got to buy two AC conditioners. But if I move I will do it again, and hopefully while the house is being built so I can keep the two runs of romex apart from each other as well as the rest of the runs for the house. I have been told that is beneficial although I don’t think I will ever move. 

I do wonder if a 3rd circuit for digital would help, but no plans to do it in this house.