I have a 218 between my G68 processor and mono amps.

Digital out from the G68 to digital in on the 218.
Roon via Ethernet into the 218 network.
Table phono stage into the 218 analog in.
Analog out from the 218 to the monos.
Din comms / SpeakerLink comms cable from the G68 to the 218.
Control via G68/MSR/iPhone

I use the 218 for stereo 196k MQA and stereo from the turntable.
I use the 218 in combination with the G68 for HT duties.

Works fine.

HT: 861v8 - ID41, HD621, DSP5500hc, DSP5000 front, DSP3100 S&R, REL t9 SW.
Office: Fanless 7i5 w/ ROCK, 218, Woo Audio WA2, Focal Utopia HP’s
Family Room. Grandinote Volta, Grandinote Shinai
Bedrooms: Allo digi, 3100C, Prime HP amp & PS
BBQ/Party: Raspberry Pi, Explorer 2