Behringer BEQ700

[NickS]

I was considering the BEQ700 bass EQ pedal and noticed an interesting spread of frequencies; not your normal progression. 50 Hz, 120, 400, 500, 800, 4.5k and 10k. I took a look at component values. Using a simple (non-Spice) calculation:

Code: Select all

Nominal	Calculated
freq   	freq
50	     49
120	    153
400	    394
500	    533
800	    746
4.5k	   4823
10k	    10526

Of course, component tolerances will affect this but it's curious that the "120Hz" filter should be that far out and that they have both 400 Hz and 500Hz sentre frequencies. It would be interesting to see the curves.