I sold my iPad Air 2, so I can't say. From the iPhone 6, it is brilliant and performs the same as the iPhone 7. As long as the iPad Air 2 has a decent USB system, it should be good. I've noted problems through USB adapters on some machines. Mojo, for instance, measures FAR better through an iPhone 6 than through my iMac 2012. Are these differences audible? I can't say, but I would guess no.