Question strange problem with an in ear earphone

djsolidsnake86

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Mar 26, 2015
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i have a pair of xiaomi mi noise cancelling earphone (3.5mm jack)
i want use this on my headphone amp (audio gd nfb 11.28)
i also have 6.3mm to 3.5mm adapter from a akg 371, the problem is that with this adapter i hear half sound on the xiaomi earphone (i also have another xiaomi earphones and same thing), and if connect to microusb the anc adapter i hear full sound, but with a background rustle.
i don't understand if the problem is an incompatibility wity my amp, or the adapter is the problem
what do you think?
 

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