Improved sound (Lightning), sketchy build quality
iPhone XS - side-by-side comparison with Apple dongle.
Using Shure SE215 IEMs, expanded bass, mid-highs improved. More clarity (less muddy) and mildly expanded soundstage. Approx 20% improvement over the Apple dongle (subjective).
K7xx had similar performance improvements but noticeably better volume level.
Braided cable looks cool and visually seems like it’s solidly assembled, BUT...
There is a significant lack of retention strength of the headphone cable jack in the 3.5mm female side. Extraction force can’t be more than 1-2 Nm. No noticeable “click” upon insertion. Tried 3 diff cables to compare, all the same. Not sure how long before the jack will start to fall out on its own. Disappointing. Will likely return the product.
The lightning end seems solidly connected to the iPhone, so at least that is ok.
Would not recommend to a friend.