dx90 的24bit/192歌曲是否一定要在coaxial output 出?

各位师兄，小弟上星期入了部dx90，下载了几首24bit/192khz嘅歌，不过部读唔到， 呢部机是否一定要在coaxial output 出24bit/192khz?
望指教。

唔需要。

Phone Out 都播到楼主升咗 Firmware 到 2.05 未？
http://www.ibasso.com/en/download/
2.0.5 change log:

Improvements with this firmware:
1. The slight lag of the control buttons' response, has been eliminated.
2, Missed last 2 seconds of songs rectified.
3. Touch screen sensitivity has been adjusted.
4, Improved read speed for exFAT formatted SD cards.
5, Optional digital filter added.
6. "Charge Only" option added into USB settings.
7. Power off confirmation screen removed.

Edit: and fade in effect as DAC is gone.