I downloaded the manual of the G700
it receives analog inputs and digital inputs. everything done inside, including Phono RIAA eq is done digitally, then analog out
Phono: is a MM input, sensitivity 2.5mV, standard 47k ohms.
The description indicates adjustable settings for phono, I didn’t see that in the manual.
Any MC, low output cartridge will need a Step Up Transformer to get up to at least 2.5mv for the G700’s MM Phono input.
MCHO, high output moving coil will need to be 2.5mV or higher.
Also: digital inputs: PCM ONLY, no DSD.
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the RIAA Specs are +/- 1db, that is nothing special