RAMBO Motor Current Settings

hi guys . i have been trying to reduce the motor noise and vibration as low as i can without skiping steps but i have noticed that going lower than the default "100" on the Digipots value that the stock firmware have as a default my motor hiss on idle and humsss when printing .

have anyone found the "sweet Spot" for this motor to run? at what values you found they work better?

Also does the Rambo board manage the current for both Z motors? or the current actually be splited . for example 185 = 1 A if i put this value on the Z axis . the board sends 1 A to each motor or 0.5 A ? looking at the board theres only 5 Drivers so im guessing that both motors are actually driven by the same driver .

i dont know that anyone has figured this out honestly

Ive left all mine at 100 and have not noticed anything wrong with it. The only motor that gets hot is my extruder motor but its nothing crazy.

Yeah thats why ive left mine as well... My extruder gets hot but not. burn you hot so i left it alone