PrimaLuna EVO 100 Tube D to A ConverterAC OFFSET KILLER AC Offset Killer is about goose bumps. The ones you get when music comes out of a background so quiet, you may say to yourself Just how is this possible? PrimaLuna custom winds our own massive toroidal power transformers that are low in hum and EMI. But we wanted more. Our engineers designed the AC Offset Killer to lower transformer noise to a place no other manufacturer dreams of going, regardless of how bad your electricity is. The