It does NOT affect the sound, it is just an annoyance.Care to explain the logic behind that one?
The author of that article states:
Likewise, I can't bear to hear/ read actual snake oil vendors claiming that you'll get "cleaner highs", "more authority in the bass" or any of the other stupid things you may read elsewhere. The purpose is to stop transformers from growling (usually at no or light load). There is no magic, and it doesn't improve anything other than reduce the acoustic noise from the transformer(s). Anyone who claims otherwise is probably lying.
Sounds like something you latch onto. Very self reinforcing.All the best,
Nonoise