Rather than shit on another thread, having just read Paul’s thoughts here
I thought I’d pop this one back open.
Hum is still there. There is definite mileage in Ed’s theory
that the shitty Sonos box is mostly responsible.
Basic observations, volume at 12 o’ clock so music would be put-you-out-of-the-room loud, by “connected” I mean plugged in with RCA phonos
- With the Sonos box on, on the “stream” channel to which the Sonos box is connected, the hum is very loud
- With the Sonos box on, on any other (disconnected) channel the hum is even louder
- With the Sonos box on, but disconnected, there is a small background hum (you have to put your ear close to a speaker). So it’s not that the wall wart is fucking up the mains in general or transmitting nasties through the air.
- With the Sonos box off, but still connected, the same result - a small background hum
I know fuck all about this, but the problem is clearly when the Sonos box is both on, and connected.
Any suggestions other than buying an ND5 XS 2, or a DAC that would effectively isolate Sonos from Naim, or a new amp (yes, yes, ho ,ho)?
Might this
(taking a lead from Paul’s suggestion of the DC blocker) make a difference? £129 is a bit of an extreme punt.
Thanks in advance.