It is most difficult to judge by your test ,for good quality digital with good quality Ethernet, usb, Ethernet switch power cords, interconnects
unless most are of equal quality , and for sure power cords, interconnects
speaker cables have to be the same , using a turntable totally different ,are they both equal value ? this counts even when comparing
similar digital , I have seen even professional reviewers comparing an amplifier
but used different power cords and or interconnects , that alone tainted the test.