For the wiring path, I did exactly that. In each room the speakers in the wall/ceiling route first to a junction box in the wall, then from there to a central

For the wiring path, I did exactly that. In each room the speakers in the wall/ceiling route first to a junction box in the wall, then from there to a central location. That allows central control, or if needed local to room control and use. The only additional cost was the slight increase in wire length due to the minor path diversion.