For those looking to change the fundamental behavior of the circuits, there are various ways to approach hardware customization safely. Component Analysis
Always mark the original position of a trimmer with a fine-liner before turning it so you can return to factory specs. 2. Individual Output "Passive" Processing drumbrute mods
Before you start soldering, you should know that Arturia included several internal potentiometers (trimmers) on the PCB. These allow you to calibrate and slightly alter the character of the sounds without adding new components. For those looking to change the fundamental behavior