Simple snake oil detection

Being newish to HiFi I research every claim that I am interested in. The latest was about the quantum diffusor. The claim on this one is one of the funniest examples of "snake oil" you will find. A knowledgeable and trustworthy gent explained to me that the Schumann resonance is simply the natural resonance frequency of electromagnetic waves which circle the earth-- if you compute the wavelength vs path length, you come up with around 8Hz which is what this box claimed to emit electromagnetic waves to nullify acoustic feedback! This magic box, of not inconsiderable expense, couldn't acoustically nullify itself if it tried.

So there are valid examples of "snake oil" that the inexperienced could be lured in to purchasing, but having said that, look up the subject here and there will be pages of posts howling one way or another.

Find someone you can trust and ask.

@geoffkait 

What TELOS Quantum Diffusor is doing is actually very simple. That is, to create an imitation of natural electromagnetic resonance wave in the listening environment. Unlike the past, we hope that the presence of “pure wave” does not bring undesirable high frequency electromagnetic waves.

Hence, in design, we choose to use the safer low-voltage DC power input. The input will be converted to high-voltage low-current power within the core. With high density grid antenna, paired with high-precision low-distortion resonance wave generator, simulated extremely low frequency electromagnetic wave is radiated uniformly from the Quantum Diffusor.

Coupled with natural wood exterior, the design highly suits Hi-End listening environment. It feels like traditional diffuser, what is different is that it is compact and lightweight in size. Compared to fixing large diffusers, this is definitely economically more desirable.

Geoff, I do not read video in the above. Maybe you can? I trust the credentials of my source implicitly. Plus I can read.