Hi Shaun,

I didn't mean this to come across as negative or as a bit of a dig. Just trying to help with a little electrical knowledge.

By high frequency noise, I mean noise that is always present on our power grid (very significant). It works its way onto all our components and signal cables, whether analogue or digital. Airborne RFI (radio frequency interference) is also a big factor and much more prevalent these days from 3G and 4G mobile signals and Wi-Fi. Again, this airborne RFI works its way into our kit. Switch mode power supplies (found on all computers, routers, Ethernet switches etc) also generate nasty switching noise. Lastly, as Ronnie mentioned elsewhere, now that our systems are connected to our LAN and PC network, there is also noise from the digital signals going to and fro on the PC and internet (i.e. non-audio) side of the network. Whatever, the source, all this stuff works its way into our systems and, to varying extents, can impact sound quality negatively.

Originally Posted by In the FAQ
... makes possible an almost loss-free transmission of high frequency AC signals with frequencies greater than 1 MHz, which are used in the Ethernet protocol for signal transmission' merely refers to the fact that the EMsafe allows the full signal spectrum through. It may well be that EMO systems do apply targeted filtering either side of the wanted signal frequency range, but there is no explicit reference to this.
Anyway, let's hope I'm wrong ...

Regards,
Dave

808v5, MD600 & DSP7200.1
Dedicated audio mains supply