More detail than sundara is probably enough detail for life. I have some austrian audio hi-15 the cheap ones and they're too much, there is such a thing as too much detail where it becomes annoying and hard to enjoy.

That looks like your typical chinese headphone. Like Generic headphone number 15. If you buy that you deserve the omnidirectional 10 mm speakers.

How do you know something is crappy before trying it? How do you know your cans aren't crappy without a point of reference? I guess you have the gaming headsets to compare to.

See your problem is fatigue. Listen to some crappy cans for a while then come back to the best ones. Get some superlux, they're good enough but crappy enough, when you come back to your expensive cans you will surely appreciate them better.

No, at best you can hear 20 k if it's super loud, at BEST. It's just stupid marketing, like they measured and the headphones could also hit 75 k so they were like yea why not write that on the box, hell dude your DAC even integrated sound is very likely to have a cutoff around 20 k. So yea.