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KPzypher you see. I knew Z1r would be your taste. Anyways, No matter how good a iem is, my hifiman susvara and my $20,000 dac amp will blow all these iem out of the water in sound quality. There is just so much an iem can excel due to space and physical limitations. I am getting into the iem hobby because of its portability and its amazing how such a small little m&m size thing can produce pretty great sound, but it's still nowhere near the sound from my susvara and amp setup.
Full size can is out of the question for me. I can't wear them for a prolonged period due to neck pain/headache + can't wear them to bed. I'm also frequent flyer. So i'm 100% about portability.