Thanks for taking the time! Looking forward to the results.
Ok here are the results. And before i begin, this test is highly subjective, cuz i dont have golden ears and ymmv but i try to be as attentive as possible during the process.
Iphone 6 hp out vs iphone 6 dongle out vs iphone 6+es100 vs lg v20.
For some reason, i6 jack out seems a smidge better than dongle out but really insignificant. I6+es100, no loss in sq, no hollow typical bluetooth compressed sound. Even if it's aac, it's good enough, maybe even better than aptx i think. I threw in the v20 just for poops n giggles and of course, we all know how it's gonna go.
Takeaway...
The es100 is not gonna elevate ios users to lgv20 levels of sq. It will however, have very good eq to help out someone who has picky gear and is very anal about their preferred sound sig. Saying that, sq out of an iphone doesn't suck as i thought it would.
It may be of use for someone streaming 16/44 or higher music. I didn't try mqa, not a tidal guy.
I did try se vs bal out, and in this round, there isnt much of a discernible difference to matter. So there isnt much to miss out if you dont use bal out, unless you have hard to drive stuff.
But i think the main takeaway here, is to get rid of that dongle cuz i hated it immediately and it feels very fragile. No cable strain relief, you will definitely short the connection one day inserting the dongle to the phone, and there goes your day.
Hope this helps