原廠的回覆：The DAC will accept DSD but not properly, the levels are low and it does not use all of the internal DACs. Long story short is it needs a specific circuit to output properly to the DAC2. We have modified some transports stream via HDMI with I2S via PCM but DSD does not work properly.

本人在香港代理買了audiobyte hydra-x, 經i2s 播dsd有上述問題，音量很小，還有
奇怪的是有一邊聲道反相。總之聽感比pcm 44.1買要差。