Oh well, there's not two separate wires, for the MDR-1RNC phones, of course.....but I have to say, I think the cable has improved the sound even further. ( I don't think I'm imagining it. ) One thing's for sure, the ZX2 is AMAZING !!! The cable has definitely improved the sound further.....listening to the ZX2, is more orgasmic, than having SEX !!