I remember a Paul McGowen (PS Audio) YouTube video where he says (paraphrasing Paul) "Adjust the output of your DAC/CD player so you preamp volume control is in the 12:00 - 3:00 position". He said "In the old days, digital volume controls had problems sending an accurate signal but now, that has been worked out and it's O.K. to adjust the DAC volume.". I tried to find the video but could not. The bottom line is your preamp's volume control sounds best in the 12-3 range. I've been doing this recently and find that it does sound somewhat better.