This was actually very rare speaker in USSR, two most advanced drivers at this time and place meet passive radiator.
I think the above video is very unfortunate for GR research > a bit sad actually 
He seems a bit confused about the difference between Audio frequencies and Radio frequencies.
AF vs RF vs Ohms Law & Reactance. (some people actually believe the "skin effect" applies to audio)
Gone are the days where people think their amplifier needs to be flat to 100Khz.
I can only assume he actually does have a vested interest in selling some very expensive cables.
He seems a bit confused about the difference between Audio frequencies and Radio frequencies.
AF vs RF vs Ohms Law & Reactance. (some people actually believe the "skin effect" applies to audio)
Gone are the days where people think their amplifier needs to be flat to 100Khz.
I can only assume he actually does have a vested interest in selling some very expensive cables.
