Don’t read threads from idiots , most on Audio science are in the under $1 k dac club , which therearea few stars like the Aries 2 dac, Schiit has a couple ,even topping , audio gd is pretty decent but waaay behind the times in trying to change a filter or other th7ngs the internal parts quality is below average been there done That ,being in Audio-a Loong time power cords for sure can make a noticeable improvement, measurements don’t tell all , and everythung needs some type of breakin , dielectric ,and metals have to settle in, as well as capacitors
bare-minimum for any quality dac $3-400 hours runin time.