I just moved into a new house with a separate thater room and 2ch music room. I ran a total of 15 dedicated circuits between the rooms, back to separate panels (Equitech for my priority ten) and an isolated ground. I use varying Oyaide outlets for all the circuits. In my music room, by chance I have two circuits relatively close, one using an upgraded Romex and the other the JPS in-wall. Thus I was able to compare them easily and the JPS is far superior. The incremental cost of having more circuits was not that significant. In my case, what I thought was pricy was the JPS in wall wiring, the Equitech subpanel, and the Oyaide circuits. BTW, I did not change any equipment in either system from my old house and the sound for both systems is significantly improved (both are larger rooms than in the old house.)
Good luck
Reg
Good luck
Reg