dedicated line=holes in the drywall?

First time I had it done, it went through our crawl space and up into the audio room. No extra holes. Next time, the electrician came out, looked at the job (second floor room, panel in the basement) and couldn’t figure out how to do it without running outdoor conduit.

My point is, it depends entirely on the location of panel and audio gear and also the construction of your house. An electrician will be able to tell you, and many will come and give a free estimate, which I’d recommend.

I agree with the previous poster who said, don't have it done by an amateur. Use a licensed electrician only.

Another +1 for @crn3371 ’s post. As a homeowner who’s moved a lot, I’ve learned running power can be simple and nondestructive, or it can be a royal pain.

A reputable electrical contractor told me the only reasonable way to get grounded power into our 2nd story room here was to run lines outside in conduit from the basement breaker box to the 2nd floor. I decided against it. In another house, it was trivial to run lines through the crawl space to a first-floor room.

Good luck!