Filter knob nxs2

Hello,

is it normal that the filter knob on the nxs2 is working different than on the nxs1? On the nxs1 i use the filter knob to get the "low" out of the track. On the nxs2 i have to put the filter knob more tot the right to get the "low" out of the track. 

Is this normal?

thank you,

Peter