21-Feb-2016, 22:02
It could be external noise from something else. I would be switching everything off and unplugging all but the phantom to see if the hiss is still there.
Plug straight into wall no filters or power boards.
Try another circuit or different room.
This is the usual process for other hi fi and it can be a bit of detective work.
Plug straight into wall no filters or power boards.
Try another circuit or different room.
This is the usual process for other hi fi and it can be a bit of detective work.