iFi hip-DAC setup?

Connection with external Audio Devices USB DAC
1

hi there, i just bought a new secondary portable dac, the hip-DAC from iFi, and i plan to use it with the trusty Audirvana,
i have some question regarding how to setup the Audirvana if i want to use it with the hip-DAC with bit perfect mode, please kindly check my screenshot is there anything i missed since every files i play seems to be always upscaling to 32bit.

Screenshot (26)
Screenshot (26)1920×1080 153 KB
Screenshot (27)
Screenshot (27)1920×1080 141 KB

also should i choose large ASIO buffer on or off?

thanks in advance.

2

Settings are ok. Damien said buffer on is good too, but when not upsampling computer is not working much.

Not sur for your volume control, i think it must be set to 100% for dsd playing.

3

If you look up your debug info, expect to find only 32-bit formats, your IFI will accept. Mine older Nano DSD does so.

BR
BB