The input gain for UR242 Hi-Z

Hi, I am using Steinberg UR242 Hi-Z input to play my guitar with ampsims. However, as you might know, the input gain is bery important to get realistic and accurate gain/feeling in the ampsims.

I couldn’t find what number the interface is calibrated to? For example, Neural DSP is calibrated based on -12db, how much should I change the gain in the input to make sure I am getting an accurate calibration?

I am looking for the numbers for Steinberg UR242 in this spreadsheet:

I don’t know but the product specification can be found here: