Hum from nSub and hiss from nVi
Posted by: GreenAlex on 09 May 2016
I am facing to problems on two different systems on three different spurs^^
OK, I have a nVi in my bedroom and love it. But it being in the bedroom and it being absolutely silent at night, I can very clearly hear a high pitched sound from the speakers when the nVi is turned on. It's not present in standby, but audible when turned on. Even when the digital source (optical) is turned off. I removed all the connections except power and speakers but it is still there. Does anybody have any idea what I could try or do?
The second issue is in my living room system. I have a Naim nSub hooked up to my AV2 (DVD5/AV2/NAP200/NAPv175) and I get an audible hum when the nSub is turned on. A low pitched, constant hum. It sounds like an earthing problem but I am unable to fix it. I tried a different mains outlet (Naim system is on its own spur) but that did not help. I also tried setting to "external earth" and then touched the test-wire to the earth of a different wall socket and also tried touching the case of the AV2. Neither did anything. Does anybody have any ideas? Is there a way to get rid of this hum I have overlooked?