My six month old SN3 has, as of this morning, started to hum/buzz rather loudly.
I’ve read some quick fix solutions that others have posted (some copper wire affixed between earth and nearest DIN) but only have spare silver wire at the moment.
The buzz completely disappears when I connect by KEF LS50 Metas to the SN3, but is very noticeable when using my normal front two speakers, Tannoy Legacy Eatons.
There’s a fifth binding post on the rear of the Tannoys but I’m not quite sure if this would work or indeed, how to connect it to the SN3.
As the buzzing is heard through the speakers, it sounds likely that you have an earth loop.
It’s possible one of your input devices (turntable, non-Naim CD player, non-Naim streamer) requires earthing, or is not connected properly.
A simple test is to run a cable (a piece of wire) from the metal body / case fixing screw of the non-Naim source to a known earth point, such as the fixing screw of a power socket (UK).
If unsure what a known earth is, DO NOT do this yourself.
You may also disconnect every input and one by one, reconnect to see if one is causing the hum.
I’ve just re-connected the KEF speakers and sub, and there’s no buzz at all, so this must mean it’s the Tannoys (though the buzz wasn’t there before, at least not as audibly).
I’ll try the Tannoys again later, and go through the inputs on my amp one by one and see if that works. Not too confident or sure about the known earth option, though.
