Speaking of the Audeze LCD-2 and the rest of their line too. I find it interesting how Audeze does ship a frequency chart with each headphone. As we can see in this process, there are variances between each set of headphone that gets produced on measured by them. Then, the final question is - how much of those variances can be heard and interpreted by our own ears?
Placing that aside, I then wonder how much variance there might be with each of our HE-400 headphones? We might be looking at charts from Purrin, Headphone.com as well as those from Tyll. But, in each of those cases, the chart is only as good as the particular headphone that was measured. The rest of us could have readings that vary a bit from those published charts.
Again, I think the same case applies here. I wonder if those variances are enough that one could tell the difference between the signature of two different pair of HE-400 headphones? Or, are the variances so small that our own human ears may never detect or decipher the variance?