ironmine
500+ Head-Fier
Yes, it IS technically difficult, but also technically necessary for proof. This has been debated to absolute death. Expectation bias is incredibly powerful. It's why placebo tablets "cure" disease. However, I will also say that placebo is completely valid for the same reason. If you think your DAC has made a positive improvement, and you enjoy it, then it actually has. I'm not going to force you to do the actual scientific controlled test to prove or disprove it. Frankly, I don't care. But your argument, as valid as it seems, lacks proof, other than your own belief system. And frankly, that trumps an ABX test because an ABX test is so difficult to do that it can be ignored in favor of a strong belief, which is not only very easy but already is in place.
I am all for double blind tests, but to say that all the dacs sound the same is really dumb.