hi head fi group i want to ask about IEM frequency response , in my FH7 they said that the freq response from 5hz to 40 khz because when i see the data sheet of Konwles SWFK-31736 witch is for high frequncys they said it can give me up to 7.6 khz frequency response i am confused about that...

dear all how i can rip music from tidal in original master quality without using any program or converter like audfree tidal converter thanks

dear head-fi groups is it worth to upgrade from fh7 to fa9 is fa9 sounds better than fh7 and what is the difference also from lc-2.5c to lc-2.5d cable and is there notable audio change thanks

dear friends What kind of DAC ic i can replace with ak4452nv in my q1mii i wound to replace it with ak4490 series. can someone help me with this thanks