If n90q becomes my "big" portable (airplanes, etc.), I wonder what a good "small" portable would be. K3003i is appealing, but no nc, and I'm not sure how well it isolates. Bose QC30? Is the k391nc a thing?
If they're serious about the onboard DAC, I don't know why they ship two headphone jack cables and just one standard USB to micro-usb cable. standard usb-to-lightning adapters would be a byatch to have coming out of your phone—perhaps even for the duration of a flight. Given that Apple is likely ditching their headphone jack in September, it seems as though they could make a second cable standard (I can't find a micro-usb-to-lightning cable anywhere online, they might have to get a supplier to make them just for AKG). Certainly the reviews suggest that the digital connection is superior to analog, so this oversight is especially odd.
Perhaps a year from now, when and if we have lossless bluetooth, that would be the time for a revision. Ditching micro usb for USB-C would likewise be a welcome change. Hopefully micro-usb will be entirely dead by then, and there should always be a hardwired input method, for charging convenience if not for comfort. Bose has added adjustable noise cancellation to their QC30, and for $1500, that seems like another welcome element of customizability. If they're so fiddly with trunote and their three soundstages...
A leather-free option, as Audeze has done, would make purchasing one a pleasanter decision for a vegetarian like myself. (I'm putting off purchasing SR009 for the same reason). I know they have an external battery, but does the case itself also act as a charger? That would be an interesting way of facilitating battery life—being able to charge from (1) your device, (2) the external battery back, or (3) their case. If you're requiring power, it's kind of on you to make it easy for us.
Also, any word on how the NC compares to Bose QC20/25/30/35?