Power cables rediscovery for digital

So no question power cables have a great impact on sound. Now what I discovered recently is that where they have the greatest impact is not on the boxes that draw the highest current (this may be true in the analog world for the amplifier) but rather on anything that is digital instead. For instance the digital input PS for the nd555 (for those who use 2 PS), and then the router, streamer switch and so on. Initially I never considered this but when I started moving the cables this was clear. Probably because digital generates a lot EM noise and so the premium power cables address this. The powerlines are still very good but essentially for the analog world?

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I’m curious as to whether there are any power cables that are designed to address the issue of internally generated EM noise in the box it powers. I’m no electronics engineer, but I wouldn’t have thought a power cable was the obvious place to address such an issue?

Yes, there’s no doubt, all the network is hugely sensitive to the power cables used

What the OP describes is something I determined 20years ago.

Since then I have been using audio grade power conditioners and audio grade power cables on each of my Naim boxes (9 in total) as well as my internet devices -
One Netgear XR500(openWRT) router, two Netgear 16 port gigabit switches and two Netgear XR700 Access Points. Each has an audio grade power conditioner.

Each of my Naim digital devices ND5xs2 and nDAC and the PS555DR(even though this only feeds the analog side of the nDAC) have the most specialised audio grade power conditioning and power cables.

This concept has been highly controversial amongst many in this forum, but now I see Naim having moved in with Powerline cables , and sophisticated power supplies which is reflective of my individual findings about seeking the best power supplies.

I do perform with/without test cases, and each time my chosen audio grade power conditioning components benefit the Naim sound in my home.

Just so that there is no misunderstanding- there is no modifications to Naim boxes. These devices are just delivering clean 240VAC to each component.

These components were designed and built by an avid audio enthusiast electrical engineer (friend) who also built and sold high end CDplayers, and 500w mono amps. Sadly he passed away 10 yrs ago.

Naim do have sophisticated power supplies as you said, but don’t use and / or recommend power conditioners.

DG…

Can you describe the sound quality differences you experienced with the specialized power cables, relative to standard power cables? I am looking to make such an upgrade and am curious what to expect.

Funnily enough I once used Van Den Hul “mainserver” and “mainstream” power cables.

And, found the bigger “mains stream” cable on the digital source and the smaller “mains server”cable on my integrated amp sounded the best, contrary to the intended installation advice.
Proof of source first…

The changes were done as a combination of power conditioner and cable types with many hours of testing.

Unfortunately the products are no longer available after the death of the cottage manufacturer. So detailing the musical improvement I can only summarise by the following analogy:

as being similar to adding a PS555DR to the Naim nDAC. Musically enjoyable with no fatigue.