Grado, or Joe Grado started the company with the experience of building high-end microphones and cartridges for over 40 years in the late 1980s. You absolutely cannot compare Grado with JPS. Any engineer would immediately tell you that cables do not make any difference to sound quality, however JPS say otherwise. It is this mentality that makes this headphone a bad joke in a way and why so many of us are here discussing + predicting its fate.
Actually they can, but not in the way the Cryogenicaly Civit excreted metal hawkers would have you think. As long as it has the capacity to carry the bandwidth of the music you are playing back (and this becomes relevant as the bit rates are now rising) there will be no difference in cable. In fact any difference you think you hear is going to be derogatory and induced by capacitance and resistance in the cable itself.
In short your 10 cent a foot CAT 6 ethernet cable will perform about as well as any boutique stuff.
Grado also to my knowledge did not tackle the Ortho thing right out of the gate. Different kettle altogether.