Some of you are wondering "what" this is. IMO it is nothing more than simple Transducer principles. I suspect similar to the Ultrasonic cleaners used in the medical profession, since the 70's, only with a variable frequency capacity. I'd like to see the "guts". <G>(but I ain't goin' to buy one unless I can try it first and they have one for Bass!) Regards, Joe Garrett, RPT, (Oregon) P.S. They proclaim the frequency response is 20Hz to 20,000Hz. Yeah, like that's gonna happen. For one thing that's totally outside of the necessary range for a guitar. I think, in this one respect, the "sales Guys" got a little bit over-zealous.
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