i have noticed when playing hi-res files through the usb to my amplifier ,they are much quieter than my mp3s, even if i put normaliser on.
if i play the files through headphone jack i assume they are converted because they sound the same.
the files are 24/96 flac downloaded from multiple sites.
i was told by a friend that volume has nothing to do with bit depth or sample rate, so the volume difference must have something to do with a conversion that is going on.
this issue also happens over bluetooth in my car.
soooo.... my questions are:
1. why does the problem not happen when converted for the headphone jack?
2. what is causing the volume drop?
3. is there a difference between using an external dac or the one in your amplifier? this would also be an external dac?..am i wrong. my understanding is no.
4. how do i get these files to play properly on my home system..i am really excited to hear them.
also my set up is mhl to amplifier from my xperia z2 which offers usb hi-res output.
but i do believe that the problem has nothing to do with the amplifier because the problem persists when over bluetooth in my car...so i feel its something the xperia is doing.
and "no" i am not expecting the car to play hi-res through bluetooth, i am merely pointing out that the problem may be the same thing.
