AD1852 - Jumper settingsI have just received Kingwa's answer to the 2 AD1852 jumper settings.
Here is what he said : "At default, it is 2X oversampling and input allow 192KHz. At another setting is 4X oversampling and input highest 96KHz."
So the fact that there is an oversampling difference between the 2 modes explains the differences I heard.
Also, looking at page 9 of the data sheet, there is a difference in the frequency response between the 2 modes.
I will try to confirm that by playing 192K files to determine which is which.