One my friend has Atlas and Erodion red and prefer listen with Erodion
when I tried Erodion Evo with MM input of my CH, I found more stage, more body and more dynamic, was a fantastic sound, only very little less transparent on high, but this is normal
Hi Gian: The Erodion's rear panel is equipped with a grounding switch, and instructions on the purpose of each grounding switch position should be inside the user's manual. Experimenting with the switch may provide a little more sonic transparency.
Also, instead of connecting the ground leads of your turntable and tonearm to the Erodion, and the ground of the Erodion to the phono stage, could you try connecting the ground leads of your turntable and tonearm and Erodion directly to the phono stage?
Alternatively, in some systems it may be possible to connect the ground leads of your turntable and tonearm to the phono stage, and leave the Erodion ungrounded.
In a high resolution system, altering the grounding of the Erodion should result in clear changes to the sound.
kind regards, jonathan