well the reason i asked this question is becuase i have the ER4P & ER4S and just got in the ER4PT
My rig is iriver ihp-140 optical out>custom sys-concepts optical cable>Ibasso db2 boomslang Optical in>Male Hirose toxic silver poison to RSA male Balanced Cable>RSA SR71B Balanced between the Amp and DAC.
i got my S adapters like a week or so ago, but never opened up the package as i just planned on selling them, so i open up the package to give the adapters a look as i wasnt going to use them, but just wanted a look, to my suprise AWWN sent me a 100ohm 3.5mm Adapter.
So i decided i was going to A/B the ER4P & plug the 100ohm adapter into my ER4PT essentially making them A ER4PT+S considering the PT are very linear match drivers,
so i A/B tested and the ER4PTS with the ER4s
the ER4PTS seemed to be more resolving,more resolution, the upper extension was clearer and more smooth, everything is just more vivid. its like the er4s but with a layer of resolution peeled back exposing even more resolution across the frequency spectrum.
i was listening to DIDO ''here with me'' and i was completely blown away at how clear,crisp,airy, everything was over the er4s.
the reason i brought up that question about the linear driver matching of the PT, is that if you take that into consideration that the driver have greater linear matching and how close the PT is without the adapter, then you take that linear driver matching and add the 100ohm adapter your taking the stock PT from 86% accuracy to 92% accuracy, but then what about the added driver matching that has to farther add to the accuracy right?
maybe i am crazy but looking at it objectively and then listening to it subjectively, i believe there is a jump in sound quality. how much i donno, but to my ear it sounds phenomenal, where as i didnt get that same impression using the same equipment with the er4s.
And no im not saying it outshines the S, but what about if you add a S adapter? you have to take into consideration the linear driver matching being better than the S and already close to the S, then add the S adapter and wonder what you are working with now.
Edited by Mooses9 - 1/22/14 at 6:45pm