JohnYang1997
100+ Head-Fier
It has two resistors inside. Initially used for er4pt to become an er4s.I have a pair of ER4XR's - how does the adapter affect the sound? What is inside the adapter?
Thx!
It will make er4xr a bit brighter, a bit more air, a bit better tonality.
It will also make it much less sensitive. You will need more than double the volume control setting to have the same volume.