obsidyen
Headphoneus Supremus
Just one sidenote - drivability is not only about volume. It might sound loud enough with an iphone, it will probably still sound a lot better with a dedicated dap.
I know, but iPhone 6s is as good as many DAPs out there. I don't buy into the DAP hype. Chord Mojo sounds better than all DAPs out there, I carry it with me if I want the best mobile SQ.