I have a problem with the sound, when I use the equalizer there is a crackling noise when I turn the volume up. If I don’t use the equalizer it is normal. My equalizer parameters.
You are most likely getting digital clipping. Looking at the picture, you are boosting 50Hz and 10KHz ranges by 10dB, but pulling the overall level by 6dB, so at max volume on some passages it would clip. Either pull down the overall volume slider or instead of boosting some frequencies, pull the others down.
is a similar equalizer planned for RS 150 ?
What BorisM said above and my thoughts are the same.
RS150b has no plans to add EQ function
Perhaps someone here can help find a way to get the APK from the 520 and load it into the 150?
It’s the same os, very similar hardware, my estimate is that it will work