Matrix audio x-spdif I2s no sound.

[Wei Cao]

My source is a Windows 10x64 bit pc. The firmware is v6.C7. The sampling rate is 88.2kHz.

Hi John, 
Thanks for coming back. Does this issue still exists?
Does your Topping D90 display 88.2kHz on its display (when you connect the 2 device like this)? 
Did you tried to connect the X-SPDIF 2 to D90 with a coaxial or optical, if it worked?