I’m not sure your presumption is correct. This subject came up because of SR’s Carbon Tuning Disks, which are meant to be placed on power cords and IC’s to deal with the external fields that the video discusses. Here are are a couple of links, but first I should say that in my system they degraded the sound on balance or at best had no effect, depending on placement, so I returned them. It was hinted to me that they work more assuredly on SR cables. There’s a thread about them at WBF, including a few posts by Denny — https://www.whatsbestforum.com/threads/new-synergistic-research-carbon-tuning-discs.34386/