De-Emp and Direct Which to Use


On my DAC, there are two outputs set: De-Emp and Direct. Which I should use? and What is the pro/con of each. Thank you for any advise.
atranz
Most DACs switch automatically from regular to DE-EMP if the cd was recorded with EMP! If you switch in the DE-EMP with regular CDs, you will be rolling off the HF.
I used "Direct" because I don't what "DE-EMP" does; hence this thread. On the back of AN DAC1.1X there is a push button to select the output - Direct/De-emp.
Again: You use DE-EMP with pre-emphasized CDs. I do not know the AN DAC but most DACs switch automatically and most of those have an LED indicator informing the user that this has happened. If the AN requires you to make this decision, the problem is that pre-emphasized CDs are rarely so labeled. Seems like a dumb system. Why not ask AN or consult the instructions for the DAC?