Hi, left channel on my Lite DAC 83 just died. Was breaking up for a while, now no signal at all. Just bought it as used, no help from manufacturer (contacted them already). Any success getting the schematics, any help is really appreciated. This was supposed to be my end-game DAC.....  ...

Hello, hope you can help me... I have bought Xonar Essence One from the seller in Poland. Card got bricked after a firmware upgrade, common problem with those cards, it seems. Of course, I used official firmware, followed all instructions and such. Now... I don't have any contact with...