There is no sound difference between the T2 stock cable and the third-party cable I installed other than different resistances in both (I got two T2s and can compare). The "upgrade" cable plays slightly quieter as it adds to the iPhone's output resistance. In most cases, if a lower-resistance cable is installed, the sound is just "louder" and is therefore perceived as "better". Theoretically, changing the output impedance can change the frequency response ("sound"), which can be determined by measurements and calculations.
In the Meizu case, I cannot believe that a different cable makes a substantial difference in sound. And $60 for a cable (my excellent Etymotic HF5 were $75 including cable)...well, if you believe that silver (or whatever material it is) not only conducts electrons better, but it also knows that the perceived difference in electron flow results in a better sound (why should it not result in a worse sound?), then...
But hey, wait until this $60 cable will have been broken in (pardon, "burnt-in") - in another 500 hours some electrons will be stuck to the cable's walls to create an even better and more linear flow of electrons. Or not.
In summary, $200 for the earphones and another $60 to make it sound good...thank you very much. I bet my cheap Etys sound better.