Yes it is random. I am talking about variances between different IEMs. Not all IEMs will exhibit the same discrepancies. They will all vary depending on the model (how they are designed ultimately). I already know graphs can show the discrepancies. Just in this case I also agree with the graphs and I never needed one to tell me what I was hearing while using my headphones/IEMs on flawed gear. I just happened to discover exactly why I was extremely displeased with the E9 on my gear at a later time. Ever since that discovery all my amps purchased have less than 1 ohm output impedance.
Edited by lee730 - 12/23/12 at 8:41am