Diehard Sony Fan, always wanted to get both of the Z1Rs, finally pulled the trigger last week(along with the FIIO K7). The FIIO K3 will be paired with the IER-Z1R. The FIIO K7 will be paired with the MDR-Z1R. Wanted to get the TA-ZH1ES, but currently out of budget.
My 1AM2 and N3AP can finally retire.
I have the IER. Love it. Nothing compares. I used to have the MDR, but I didn't like the way the connectors on each cup dug into my shoulders when I was lying down. So I sold them. I do miss them. Maybe I'll buy them back again at some point.