Man when are you going to stop? You get proved wrong in one thread making baseless claims about cable impedance then you move onto another. Of course the tech is portrayed through marketing speak but it doesn't mean what's actually going on is a lie. There's 2 dynamic drivers with crossover, leaving one to take care of sub 200Hz frequencies just like.... a subwoofer! You might not like the sound, and you might not like marketing (guess what, most of us dislike marketing), but that doesn't mean you're justified in using pseudo-objective arguments to prove that you're correct.Except it also isn't actually very well extended in the sub-bass, despite what the 'subwoofer in an IEM!' marketing says.
It does extend well in the sub-bass. Yes, it drops off between 2.5-5dB below the harman IE 2019 v2 target at 20Hz, depending on which channel you measure and where you're normalizing, but this doesn't mean it's not 'well extended'. Yes, it's not the best extended, but that doesn't mean it's not 'well extended' at all.
Suggesting the MH755 as an alternative isn't helpful either, as you can't reliably get a genuine copy any more. Besides, you're far more likely to notice the region it overshoots the harman target, ~100-500Hz, than the increase in sub-bass. There's also far more variance between copies: some of the ones crinacle measured way overshoot the bass and are going to sound overly warm.
n.b. in the original marketing video from crinacle himself, he explains the crossover is less about reproducing sounds down to 20Hz, as single dynamic drivers are perfectly capable of doing in IEMs already, and much more about the shape of the bass shelf: keeping the response flat down to ~200Hz and then starting the bass rise below that. So, again, please stop complaining that the 'subwoofer in an IEM' was ever about better reproducing sub-bass frequencies, because the marketing itself doesn't claim that.
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