Fiio JM21 - Audio

20
Audio
Output selection
3.5Output selection
PO (Power output), generally used when connecting to earphones and
speakers
LO (Line out), generally used when connecting to power amplifiers
SPDIF (Coaxial out), generally used when connecting to DACs
4.4Output selection
BAL.PO and BAL.LO available
SPDIF out (it only needs to be set in this way when the coaxial
output is used)
D2P mode: when playing PCM signals, it will output raw PCM signals;