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Hi, I'm planning to buy Sony XBA-3 IEM.


The problem is that I'm going to use them with my SmartPhone (XPERIA SP).


As you all know that XBA-3 has low impedance 12 ohm.


I can't buy XBA-3's until I know about my Xperia SP Output Impedance


I don't know the Output Impedance of my XPERIA SP. Can anyone tell me what is the output impedance of SP????