|the er4p and er4s use the same transducers, the only difference being resistors in the pod of the cable. the adapter adds extra impedance to the er4p so that it sounds like the er4s.|
why would anyone want to buy the er4S ?
I mean you could just get the p and an amp with the right
output imp, and you got yourself an s model.
and if you don't have an amp, you can still enjoy the P sound.
Sounds like a deal where you can't lose.
I'll have this in mind should I ever consider buying a pair of Etys...