Ok I see that I am the only who think that it should be good if the master volume plays in all of 4 outs.

Of course, I read your posts, but i prefer to have a good control of the volume than a little better bass sound...

In the audio pedal solution, you lost the stereo...

In fact, the good balance between the bass and the other of the sound, is depending to the room (stage ) you are playing, and it is a subtil tuning.

I will test if the pedal volume change the volume in all outs...
I think it reduce the sound via midi volumes. I don't like AUDIO solutions...

I don't use now the 3rd out... and thanks for your help, i will test what can I do with...