It is wonderful how the K10s play across all sources. After a few days of listening with Chord Mojo, I had to switch back to directly to the iPhone 6S Plus when the Mojo battery died. I was surprised at how awesome the sound was straight out of the iphone playing spotify downloaded 320Kbps music. I remember switching previously from the iPhone to the Mojo and it did sound clearer, however switching back I am not so sure. Maybe just a different sound sig. coming out of the iPhone, fuller punchier bass. All I know is that the K10Us are pumping with every genre on the iPhone 6S PLUS!
I cannot hear any difference between HO of 6S and Mojo or Hugo. I'm quite prepared to accept that it is my hearing but I suggest that the difference is not worth carrying an extra device and that horrible CCK arrangement.