Sharing my experience:
Hired an electrician to run 4 dedicated "homerun" circuits. My Levinson 39 and 331 are each plugged directly into separate circuits, per manufacturer. Both 39 and 331 have built-in protection, it is claimed. The remaining 2 homerun circuits are each dedicated to a large surge protection device. Which the rest of my equipment (those without built-in protection) are connected.
Above investment was based on good science, and a bit from personal experience. Before this installation, with my rig plugged into non-dedicated circuits, I heard noise when same circuit is shared with another appliance. Today, it is total silence in between music. But does latter sound better? Can't prove that, but it sure feels good to align with science.
Hired an electrician to run 4 dedicated "homerun" circuits. My Levinson 39 and 331 are each plugged directly into separate circuits, per manufacturer. Both 39 and 331 have built-in protection, it is claimed. The remaining 2 homerun circuits are each dedicated to a large surge protection device. Which the rest of my equipment (those without built-in protection) are connected.
Above investment was based on good science, and a bit from personal experience. Before this installation, with my rig plugged into non-dedicated circuits, I heard noise when same circuit is shared with another appliance. Today, it is total silence in between music. But does latter sound better? Can't prove that, but it sure feels good to align with science.