Radiating EMI – Continued

In this previous thread, I discussed my approach to radiating EMI - behind my equipment rack.  

This one is about radiating EMI at the streaming head – modem/router/access point/switch/etc.   These digital components radiate EMI from their housings - as do transformers in LPS’s.  Shielded cables are important. 

The streaming SQ for my modest system is full-bodied, dynamic and immersive.   No fatigue whatsoever.    It turns out there was still wiggle room for more improvement. 

My 3 LPS’ s, for the modem/router/access point, have power cords with shielding.  Two are Purist Audio Design Aqueous Aureus – containing the proprietary Contego mixture.   The 3^rd power cord was an Acrolink 7030 – also with its own proprietary shielding.

Recently, I replaced the Acrolink 7030 with another PAD power cord– also with the Contego mixture.  Another incremental gain happened. Richer timbre, more transparent – blacker background.    My TV picture quality also improved - via the Amazon WiFi Fire Stick.  

I honestly don’t know if the change in SQ should be attributed to the difference power cord designs - or the difference in the quality of the shielding – or both.  (The PAD and the Acrolink each use heavy gauge pure copper wiring).  My tweaking experience over many years gives me the impression that not all shielding is the same. 

Radiating EMI – along with conducting EMI– continues to be detrimental for quality streaming.   

My Modem/Router/Access Point are described here.

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Interesting articles about EMI: 

Radiating:  https://en.wikipedia.org/wiki/Electromagnetic_radiation                             

Fields: Near and Far:  https://en.wikipedia.org/wiki/Near_and_far_field