I have some Quiet Line (by Audio Prism) on order as my dealer recommended placing these on the same outlet as my refridge (which causes a humming/hiss in my speakers) and he also said anything ciruit that has a motor in it... so I'll have one on each outlet for my stereo and one in every circuit in my house to help keep things as quiet as possible.
I had hissing and crackling in my speakers and tracked this down to my computer equipment (that's what I do for a living so I have tons) and I researched it hear on audiogon and some people suggested putting my Ultimate Outlet in front of my computer equipment to keep it from poluting my ac lines, and sure enough I stuck it before my UPS and suddenly I had quiet, I have a little bit of tube hiss right now that I didn't have on another circuit in my house so I can't wait to put the Quiet Lines in to get to that next level.
I had hissing and crackling in my speakers and tracked this down to my computer equipment (that's what I do for a living so I have tons) and I researched it hear on audiogon and some people suggested putting my Ultimate Outlet in front of my computer equipment to keep it from poluting my ac lines, and sure enough I stuck it before my UPS and suddenly I had quiet, I have a little bit of tube hiss right now that I didn't have on another circuit in my house so I can't wait to put the Quiet Lines in to get to that next level.