I'm a big fan of active basses and since there is no room in my passive PJ for active electronics I decided to purchase a Behringer bass pedal. It's a 7 band equalizer but I only use 2 frequencies to simulate the sound of a 2 band active onboard preamp (bass and treble). The specific frequencies I use are 120hz for bass and 4.5khz for treble, I am so pleased with the results it sounds awesome, it sounds exactly the same as the active basses I have played in stores and other places. The only thing I find strange is the fact that the overall tone sounds better with the 120hz rather than 50hz and I find it strange because most preamps like emg, aguilar etc. have values for bass between 30 and 40hz so I thought I was going to use the 50hz but it sounds a bit "tamed" and punchier. With the 120hz the lows are deeper and growlier, it's just a much better tone. I have tried the pedal with more basses and the result is the same so my bass is not the issue. I don't know if maybe the values are reversed or maybe the 50hz knob is deffective. what do you guys think?