@geoffkait , you are not suggesting that a double-blind study, which is the gold standard of valid research, would not be appropriate to expose the charlatans, are you? The placebo effect and the power of expectation are both powerful factors when dealing with subjective things like the way something sounds. It would be the easiest and most reliable way to expose real nonsense like the Dalby D7 compared to my Music Hall record clamp if the listener could not know which one he was listening to.
On a minor scale, I have seen this in action myself. I love Pink Floyd's Dark Side of The Moon. There are several versions of it out, from the original "holy grail" in 1983 to the Sony Gold Mastersound, to the remaster to the 2011 remix. One enterprising fellow posted cuts from each, identified only by A-F. I figured that I would likely go for the brand new remix or the Holy Grail. Nope. Not knowing which was which, I though that the Sony Mastermind was the best. Surprised at the results, and now knowing which letter corresponded to which clip, Guess what? The 2011 remaster sounded the best. Goes to show that the double-blind is the benchmark of exposing charlatan claims. And I'm willing to bet that the overblown nonsensical claims made by the seller of the Dalby D7 will be exposed for the BS I believe them to be.
On a minor scale, I have seen this in action myself. I love Pink Floyd's Dark Side of The Moon. There are several versions of it out, from the original "holy grail" in 1983 to the Sony Gold Mastersound, to the remaster to the 2011 remix. One enterprising fellow posted cuts from each, identified only by A-F. I figured that I would likely go for the brand new remix or the Holy Grail. Nope. Not knowing which was which, I though that the Sony Mastermind was the best. Surprised at the results, and now knowing which letter corresponded to which clip, Guess what? The 2011 remaster sounded the best. Goes to show that the double-blind is the benchmark of exposing charlatan claims. And I'm willing to bet that the overblown nonsensical claims made by the seller of the Dalby D7 will be exposed for the BS I believe them to be.