Quote Originally Posted by iboomalot View Post
I just replaced my panaflo with some Scythe SFF21-F 1600 rpm fans but unlike my E fans that undervolt very smoothly my KAZE MASTER controller is like full on or full off with this fan.

my FLEX-E I can adjust 30 rpm at a time with small movements but one small movement on the F and thats it

anyone notice this ???? I just touch the voltage down a 1/8th of a turn and the fan powers off
Buy a crystalfontz controller with PWM. It dials up and down to the nearest 1% of power and it uses PWM which eliminates some of the clicking and other odd noises you get from normal fan controllers.

Not sure how much each channel can handle, but PWM is nice for non-LED fans.