SoCal Sam
Lunatic Member
Itself at the source, it doesn't sound like anything.
What it causes however, results in all sorts of audible effects depending on the equipment and the type/strength of RFI/EMI.
Intermodulation issues, stability, oscillations, buzzes, hums, residual noise floor fluctuations and modulations in analog. And in digital, it's a all those, plus timing deviations, aliasing, non-linearites etc.
Bah. I'm just going to build one of them Faraday cages and sit in that.
https://www.sciencealert.com/a-tale...day-cage-to-stop-customers-using-their-phones
All due respects to you, do not know your background other than you appear to be an audio technician and not a retailer. The other guys may or may not have audio industry connections either as retailers or reviewers. I am neither which should be obvious given my pundit position. The examples of RFI/EMI effects that have specific evidence are radar and cell phones, not audio gear. These devices are built specifically to receive radio emissions or reflections and are susceptible to jamming and interference. I accept that. How this applies to audio gear such as integrated amps, preamps, and amps is unclear from the many threads here at good ole AK and from the hundreds of audio reviews that I have read from the professional magazines and amateur reviewers. What is missing even from your description above is the smoking gun which should take the form of, "when playing this song on this gear in this specific circumstance, I hear this which is a defect caused by RFI/EMI and can be mitigated by the application of shielded cable or other applicable device." In other words, a problem looking for a solution. It's sort of like bigfoot and yowie. There are firm believers but there is no clear and convincing evidence.