Anyone ever try the effect audio cables on the IE 600 or 900 or 300? I have the Ares S and think it would pair well. I'm just unsure about the MMCX connector. The version I have is two pin but I can order the effect audio set which also has the MMCX.
Yep, this was discussed several times. You can also use the Search function.

Some people have reported success with some cable manufacturers mmcx and these so it is possible.
does senny make their own adapter? I am wary of a cheap chinese product that might break inside the IEM.
Null Audio and Effect Audio

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