Saoshyant
Headphoneus Supremus
It reminds me of a thread I saw awhile ago. The argument of the thread was the best use of money was a Samsung Note 4, a large SD card and an SD to micro SD adapter, a Zerolemon 10,000mAH case which you could also tuck the adapter into, and your choice of dac/amp like the Mojo. You'd get large storage & battery life, bluetooth, streaming, etc and top quality sound. While I'd use the AK70 as a transport, it wouldn't be used purely as that and nothing else as there would be many times I'd prefer a smaller setup so the AK70 would be used alone. If I just wanted to use it as a transport purely, I'd use my gen 1 Fiio X5 with it's 2 mSD for decent storage.