I'm still pretty new to audio in general and I'm always open to suggestions. So I tried different cables (from generic to $500+ audiophile ones, from pcocc to silver pcocc) and op amps (discrete and normal). I think I can hear some different in cables made using different materials and it's probably due to conductance and quality of the materials. I think there's also difference in op amps in different applications but then I came to understand it's because certain op amps aren't good for certain circuits so they aren't working at their best (probably oscillating). I tried a few good budget dacs and couldn't really tell the difference at all lol. I think audiophiles want options so they attach their narratives to different options to make op amp rolling, dac rolling, cable rolling more interesting. I just hope that I'll remain as open minded to the idea that I may or may not hear any difference at all when I become an old ass audiophile.