Hi Xavier
Is the preenfm2 (latest board R6)
I’m using a Jack to headphone adapter see attached picture.
If I set the other 3 instruments to 0 voices this is as loud as it gets. If I set them to 3 each it gets quieter which what I would expect?
The loudest I get it is one instrument set to one voice but then it still not as loud as say my volca fm or craft synth both running off batteries.