1: Punching a hole is not an technology at all. But, given the the shape, size, and material of the IEM housing, as well the characteristics of the drivers, finding a certain spot to punch the hole to achieve certain goal involves some R&D, but very minimal! Thus I find it hard to justify something like this as a technology, unless the bar is really low.
2: Who knows its over or not. As long they are desperate to 'WOW' consumers with some 'world first', this can be an easy route.
3: I certainly did not buy it. I bet vast majority of the experienced people did not too. Plus, I said 'I and my friends could not hear any difference', and never claimed anything as if I am stating an objective fact.
Btw, I tried the Campfire, Periodic, and many more. Many of them I could easily identify the differences in some major acoustic characteristics, not matter of good or bad sounds, but matter of preferences. So a line-up ranging from $1k to $3k+, all tuned very similarly, except some fine details requiring good listening condition and experienced ears to distinguish? That's just some lazy engineering, yet justified by the ''hole'' and ''world first''.
Overall, 'if you can't tell the difference... just don't buy it..' the very sentence has been said over and over and over. The thing is, the other way of the phrase "buy only when you can tell a difference" is often not followed because some people do buy them, but in fact can't tell the difference beyond placebos due to the "technologies" and "world first" and the "$$$$ it costs".
