Anyone know if it is it possible to connect up4 with smartphone using usb type c to usb type c cable, to make it work as DAC?

I use Acoustic Energy Aego M 2.1 I hoped it can be fix in the unit itself before i try other method. But thanks for the suggestion

Tried different computer and tried using bluetooth connection same result, its just a brief hiss though. BTW this problem happened if i connecting up4 to my active speaker using aux cable but when i plug my iem to the DAC there is no issue, although still there is a brief hiss but its so soft...

Hello @Shanling i just tried the UP4 but i have an issue when i tried to connect it as PC DAC, when there is no audio playingi can hear hissing sound Note: i try to use low gain but the hiss problem is still persist, but not as loud as when i use dual dac boost gain

you mean how ibasso dx90 spdif out work? cause in fiio player there are D2P and DOP but ibasso dx90 dont have the option so it make you(us) wonder, right?.

i also found something interesting about m50x cable where the coiled cable sound better than both straight cables, at least for me which pair with DX90 stock 2.5.1

hallo i just had this DX90 for a while now and i want to give a little impression regarding the 2.5.1 L2 firmware by Lurker, thank for your great work:) btw, back to the point to be honest i'm surprised to heared the differences is quite significant although in the github said no sound...