When it comes to RF (radio frequency) loitering around our music like a nuisance, audiophiles aren't completely out of luck -- we have a couple of tools at hand to deal with it. In this episode of The Hifi Podcast, the guys begin the main topic answering a question about shields and grounds in power cables, and parlay that into the larger topic about eradicating RF. Ultimately when the best course is to "move" the energy, the most effective tools will make the ground return the easiest pathway for the tiny little high frequencies.
When it comes to wave frequencies, sound waves we can hear live near the absolute bottom of any spectrum you wish to peruse. Sound waves are not electromagnetic or radio waves, but to an RF engineer they might as well be “DC.”
And sound waves, though different, can in one way or another be affected by these other guys. Radio frequency and electromagnetic waves can influence the electronics we use as source gear or amplifiers, thereby changing the sound waves we hear.
None of this is news, especially to audio designers. But in this week’s podcast, hosts Darren and Duncan dive into the topic of shielding, explaining how modern audio designers deal with EMI and RF, and covering the act of draining and grounding from a overall system perspective.
This week’s album is but a single, but oh, what a single it is. Coming from Poland, young guitar prodigy Marcin serves up his take on Beethoven’s classic Moonlight Sonata.