Originally Posted by Crion
Please try and track this source of noise. We're intrigued. smile
I’m going to try and find time this week to look at this - I’ll let you know how I get on :-)

Originally Posted by Crion
I've dabbled with the iFi AC purifier which seems pretty good
Yes, I had a play with these - and heard improvements until this additional noise started

Originally Posted by Crion
The backplane of the triton is if I'm not mistaken split between the top 4 outlets and the bottom 4 outlets on EU schuko models atleast
My Triton appears to be split into four groups of two sockets each (two groups on the top and two on the bottom). I currently have the music player plugged into the top and the speakers plugged into different groups on the bottom row, so I think our configuration is similar. That said, my 818 is currently plugged into the mains filter I mentioned previously to make the system bearable! I did try the iFi in the socket next to the 818 (when it was plugged into the Triton) and I felt it sucked some of the life out of the performance, so took it out again...

Originally Posted by Crion
I would surround it with two iFi AC purifiers on a regular powerstrip as they send out an inverted cancellation signal to block that noise but now it can be contained on that single powerstrip before hitting any house wiring circuit
If it turns out to be an internal issue, I will definitely try this. Before this issue, I had two iFi's, one either side of the Triton's wall socket.

I still suspect a PowerLine, though. I have read that the PowerLines push noise beyond 430MHz on to earth/live & neutral. If one considers the drop in signal at 1MHz (at least for ADSL lines) is only around 0.6dB per 30 metres of cable, there would seem a good opportunity for this signal to propagate from a neighbour.

I also read the following quote on The Register's forum recently: 'I was advised by an electrician when asking the same sort of questions, that the [PowerLine] signal will not be stopped at the Fuse Box/Trip Panel. So in addition to appearing on all of your internal rings, it will also be fed into the building supply if you are in apartment block say. I think the signal gets out on to the local supply connection, where it is attenuated by distance'

There is also the wildcard of Sky Q boxes containing PowerLine hardware (but, nowadays, Sky have disabled it because it caused too many complaints). There is always the possibility that one of our Sky Q boxes is playing up and causing this problem.

Originally Posted by Crion
PS Please go ahead and upgrade to the Typhon QR which have gotten rave reviews apparently. wink DS.
I'm hoping to get it shipped back for the upgrade in March :-)

Last edited by Jeremy A-H; 2019-01-07 02:33.
Prolific music listener / Hi-Fi addict!