Dobrescu George
Reviewer: AudiophileHeaven
Hey man, nice to see you here. You now planning to get a #3 instead of a #2?
Yes there's a difference. But of course the type of cable and IEM also plays a part. but this question is more suited to be discussed in the Cables/Sound Science area. (So as not to derail the thread)
Without going to science, there is a difference in the architecture of the AMP stage when using the 2.5mm port, so there is some inherent difference in sound. How big it is , or how it affects every IEM out there, that is entirely another story