As @cleeds said, you don't really have any problem to solve, just an inconvenience that you need to turn down the volume when you switch from CD/Digital to your TT input.
The output voltage of your cartridge and the gain in the phono pre-amp will affect the relative position of your volume control. If you want to decrease the volume setting, to better match the volume position of your streamer, when listening to vinyl, you can either replace the cartridge with one that has higher output, or you can replace the phono pre-amp with one that has more gain. Or, you can do nothing (what I would recommend) and just live with it. The relative volume position is likely irrelevant to sound quality and is just an inconvenience.
@remmy
The output voltage of your cartridge and the gain in the phono pre-amp will affect the relative position of your volume control. If you want to decrease the volume setting, to better match the volume position of your streamer, when listening to vinyl, you can either replace the cartridge with one that has higher output, or you can replace the phono pre-amp with one that has more gain. Or, you can do nothing (what I would recommend) and just live with it. The relative volume position is likely irrelevant to sound quality and is just an inconvenience.
@remmy
What I was thinking is connecting the phono preamp to an external ADC converter and then connecting this to the digital input of the M10. Do you guys think this is worth looking into?Absolutely not. Don't stick anything unnecessary between your analog setup and your pre-amp/integrated.