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Is EMI noise in electrical system inaudible?

Read that frequencies for EMI noise are in the inaudible range of hearing. Which raises the question is electrical noise in your system Audible.  Maybe RFI is a problem.  Maybe a power management system is still a good idea for a system.

So many complex issues here, my tiny mind is in capable to figure this out.

 

jumia

Showing 1 response by erik_squires

erik_squires
16,644 posts
 

Possibly.  Kind of depends, but it's rare. My approach is to stick to inexpensive solutions, but here's what I do:

  • Use fully shielded interconnects
  • Use shielded power cable for analog parts. These can be pretty affordable
  • Use iFi power supplies where they matter, on my DAC and streamer to minimize the generation of AC noise.
  • Use a power conditioner that starts working down in the audible range.  That includes those Furman with LiFT and SMP features and TrippLite Isobar. 
  • Try to keep my network devices (switches, routers, etc) away from my audio, both physically and the power supplies out of the same clean zone.

 

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