Btw, today I find that my AK100 optical out have "Red Light out" through my optical cable,
but the ibasso D12 seems got no signal.
But then, I use my hp-p1 output optical to ibasso D12 with same cable, no problem.
Damn... is it the Optical Out of AK100 dead? OMG....
I am using the PB2 with the AK100 with no problem. Did you turn the D12 off and back on with the optical plugged in? This sometimes works if it doesn't get the signal at first.