I have a PureAudio 1500 regenerator and I plug my whole system into it. It has made a major improvement in all areas of the sound of my system It also has a battery backup so if power goes out your system will continue playing for 15 to 20 minutes. I have used filters in the past but none really made an impact like this unit. The PS Audio regenerators are also very good but don,t have the battery backup
Alan
Alan