OK, I understand now, i don't understand why, but never mind :-)
I've put a Studio EQ at the beginning of the path A, with only the gain changed, at -9 dB
And +6 dB in the mixer for path A to have the same volume than presets 01
I don't know why it works with -9 dB, and not -6 dB like you say.
It works for 02B, 02C and 02D.
For the clean sound (02A), I've set -6 dB in the first Studio EQ and only +1.5 dB in the mixer.
And more Lo Freq, and less Hi Freq to have not the same sound but nearly.
I don't understand, but it's OK for me :-)
Thank you !