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Battery life is a Deal breaker....
Yes, looks like battery life with midrange IEMs about 4-4.5 hours. Damn it.
Cuando se usa solo como dac dura 4hora por salida de linea a mi amplificador estacionario
Sure this battery life dismiss player from outdoor usage.
Maybe your dap has faulty battery?
Much better battery life with the balanced amp, 2 x OPA1622
Unfortunately I don't see any more development or firmware fixes going on which puts me off. The OS is the same as the xuelin ihifi990, it never left beta. For it I unscrambled the firmware in linux, to mod, correct all the english and reskin it, rescramble and repack/reflash. Not what an end user should have to do.
I have said this before in other threads, but the OS is always the pitfall of most DAPs.
Either they cannot do enough development like Xuelin or they try to do too much and have lots of bugs, like Fiio and other android based systems which crash all the time.
The only smooth/bug-free OS I have used is the one made by Lotoo. It is so basic and light, that it boots/scans super fast and and never has any issues.
It looks so retro. Weird-looking and retro. But I like it.