Yours is not an issue at all... It is a simple sleep setting..
The reason it turn on quick, or takes time to starts up is the power management setting / auto power off. By default its 20min (I think).
So this is a setting issue.
Having multiple players/apps is not even possible on some Daps. So it's obvious you would have issues with multiple players paying (!). Yet i had no issues with both neutron and mango open and switching between them in Android, you your point is a non-point and your issue only.
NOBODY plays thier unit at zero to one quarter way up.. NOBODY.
Another non-issue.
You have THREE GAIN SETTINGS...
Why even bother with dac volume?
Again, why aren't you using the THREE GAIN SETTINGS of the amp??
Charging issues was resolved TWO OS VERSIONS AGO..
If you still have an issue, then time for going to ibasso themselves to solve.
It makes no difference to ALL the other units that are not experiencing that issue.
Nobody wants to have issues and it's hard to be delicate and compassionate to those that didn't have wonderful experience. But the majority of us did.
The 300max is a solid, advanced unit, and complex in order to achieve this level sound.
Being the latest Dap at the top of the heap, does pose heavy threat to many competition. They realize the advancement that they do not have.
The superiority of the greatest Delta sigma chip fully implemented and exploited with the FGPA control, and the obvious superiority of the amp with direct battery source.... It just on another level that everyone may not catch up to.
This is one of the last Dap to have this AKM chip, which is now extinct. It will be hard for competition to eclipse.
Don't even hold your breath, with all the chip scarcity, I think Dap makers will be forced to make their own dacs (more R2R & Chord/Sony topologies).
In other words, an uphill battle.
We will see in time that this unit proves itself to be the king.
All hail the king...