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Volume is much lower when I add a 75ohm adapter to my Ety ER4P.

post #1 of 3
Thread Starter 

Is this normal?

 

I am using Nokia N82 to power it. I know it probably can't drive this now 102ohm (previously 27ohm) IEM. But shouldn't the difference  only be 6dB (ie 10*log(102/27))???

 

Does 6dB really make such a big difference?

post #2 of 3
Thread Starter 

Does volume correspond to the power output of my phone. My phone expresses its volume in percentage with 100% the highest.

 

Suppose I use 100% as reference decibel level, then 90% is -0.46dB, 80% is -0.97dB, 70%, is -1.55dB, 30% is -5.23dB, 20% is -7dB and so on. Is that right??

 

Does that also mean with the 75ohm adapter, the volume at 100% will be roughtly the same as volume at 25%??

 

 

post #3 of 3

I dont get why you divide 102 over 27.

6db should cut the volume by half.

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