Can DAC's mature in sound? 2019-05-24 15:28:03 My friend thinks his media player/DAC has "matured" and changed its sound. He was content with the "old" sound and is likewise with the "new" sound, so there's not a dramatic difference he says - but he can hear it. I try to argue that it's all in his imagination, but he is very certain and says he has eliminated all other parts of his equipment to be the cause of the change in sound. He also says that he has compared his player/DAC to an identical but newer unit. He's generally a determined, thorough guy so I'd like to believe him, but I just can't.I've listened to the player/DAC, which is about 7 years old. It just sounds normal to me, but I can't compare to the "old" sound of course, if there ever was one...What do you think, is there any chance that DAC's can age, with even the slightest change in sound?