iBasso DX90 User Manual page 6

Coaxial Output Port:
Use the furnished coaxial cable to play music stored in the DX90 on an external device
with a coaxial input port.
Coaxial output has the highest output priority which would close the
phone out or line out when coaxial cable plugged in.
Micro USB Port:
Connect the DX90 to a computer or a USB charger to charge the DX90.
Connect the DX90 to a computer to transfer data into the DX90.
Connect the DX90 to an OTG storage device to play music files.
Micro SD Card Slot:
Insert a Micro SD card into the DX90 to access its stored files.
The following screen pops up after Micro SDcard inserted.
Scan SD Card
: Press this button to fully scan the Micro SD card.
The first media scanning will take more time as the DX90 is building the library for this
card. The DX90 will create a folder called ".audio_data" in the Micro SD card after
that. The speed of the media scanning the next time this card is inserted is much faster
as the library is already built and stored on this card.
Browse files
: Press to skip media scanning, and browse the Micro SD card in folder
structure.
Phone Port
Line Out Port
Gain Switch
DX90 User Guide
5