I've had great results from this tone pot from Stellartone. They make several for basses. It does not use a battery and so it simply cuts the high frequencies - very smoothly. I use the version with notched rotation. It shapes the tone in very gradual increments. In full clockwise position it is bypassed as if the bass had no tone knob at all. In full counter-clockwise position it is equal to a .1 capacitor. There are 16 notched positions and each of them is very useable. There is absolutely no noise as you turn the knob in either direction. I called the company and the owner answered the phone. He is extremely helpful. This particular tone pot is a drop in replacement. It only works with passive pickups. No, I'm not an employee for the above company.