@KMann - thank you for this long awaited information.Our lab tells me 2VRMS sustained is the maximum safe voltage that will not damage the DSP.
If this is correct it would mean there is no protective circuit at all, quite astonishing.
1.8V is the level that is needed to drive the AD to full scale signal.
Having a safe margin of only 10% before damage is ... ???
Does AUDEZE have had broken Aux inputs yet from customers?
I did not read about anything like this here in the forum.