The home I recently moved into is 11 years old and when they originally wired the home, they placed the living room, dining room, mstr bedroom/bath on that one 15 amp branch circuit with a 15 amp AFCI circuit breaker.
In addition, we frequently experience power outages and there is a lot of new construction going on.
I’ve since purchased a Furman Elite 20 PFi and had a dedicated line installed.
The room where my gear is setup now has three circuits:
The original 15 amp branch circuit and two 20 amp dedicated branch circuits. The TV I’m installing tomorrow will be connected to its own 20 amp circuit and Ill plug my audio gear into the other 20 amp circuit.
You may not need to take such measures but you might consider exploring installing a dedicated line as an option.