I would disagree and say both are subjective to a degree. Photography depends on vision and music on hearing. Putting 2 pictures side by side would be the same as putting to audio systems side by side. The results would be objective to a degree, where large differences can be compared (edge sharpness, viginetting and soundstage, instrument separation), but still remain subjective in nature. If my ears are different to yours, my eyes probably are too.
Now for some advice: Do you think the HE-400 deserves a good DAC? Like, can i get more detail with a better DAC? Currently using a Fiio e10 (old version) with Flac/mp3 source.
p.s So much technical information guys... Sorry in advance if I do not keep up.
ya, the he-400 does scale up.
the thing is that you cannot really do a real side-by-side comparison in audio due to its temporal nature & the unreliably of auditory memory. you can only listen to one system at a time. also, the way our brain process sounds, we naturally focus on different aspects and hear different nuances with every listen. but yes, i agree. with large scale differences, a direct side-by-side comparison can be quite revealing. but the nature of audio is inherently extremely subjective.
with eye sight, as long as you have normal vision barring any medical conditions or vision problems, you will see the full color spectrum at the same resolution as everyone else. you can look at both pictures at the same time, which removes a lot of unconscious biases.