A knob assembly comprising a housing, a circuit board, a rotary knob, a rotary actuated potentiometer and a rotation assembly. The housing has a front face. The circuit board is located in the housing, with the circuit board having a front and a rear. The rotary knob extends from the front face of the housing, with the rotary knob being located in front of the circuit board. The rotary actuated potentiometer is connected to the rear of the circuit board. The rotation assembly mechanically transfers a rotation force of the rotary knob to the rotary actuated potentiometer.