The headphone cable is microphonic. Anybody can recommend a replacement?
This headphone is tricky. The wiring is designed to automatically detect right and left. That’s why there’s no designated R and L.
I had mine shipped straight from MD to David Choy at Triton Audio Cables. The intention was to make a balanced cable. He tested them and made me one but the headphone behaved strangely. There’s a description from me somewhere here. When the balanced cable worked it sounded heavenly.
Since you want a regular cable you could talk to David because he knows the wiring quirks of the MJ2. I’m sure he can make you a non microphonic cable.
It's a pretty straightforward wiring setup, there's no automatic detection. Both sides are simply wired for stereo - you could use it as an AUX splitter cable, if you ever needed one. This means that it doesn't matter what is plugged where, but it also means that there is an unnecessary wire running to each side of the headphone.
Though straightforward, it's also the only headphone I've encountered that uses this wiring - which makes sense, given that there's extra wire needed, extra connections needed, and TRS connectors are more expensive than TS connectors. This means that unless a cable specifically says it's for this headphone model, it will not work, even if it looks like it will. Often people will use TRS connectors as TS connectors for headphones, but they aren't wiring them in this abnormal way.
Anyone who makes headphone cables should be able to make you a new cable, these are the specifications:
3.5mm TRS connectors, wired just like stereo:
Right side wired R(+), S(-)
Left side wired T(+), S(-)
And they should use a connector that has a little extension in order to plug into the cup (basically, don't use the standard Rean 3.5mm plug).