[Mike Rivers]

On Mar 30, 5:10 pm, Ron Capik wrote:

Seems the filter is designed to cut [boost] at the frequency
noted on the knob but it also boosts [cuts] the same
amount one octave above.

You mean it has two peaks or dips when you turn the gain off zero?
That sounds broken to me, unless it's a shelving equalizer and the
shelf isn't very smooth. Are all the channels like that? Or do you
only know about the channel that's on the bass or kick drum?

Seems like it would be worth sweeping a tone through it and plotting
the response to see what it's really doing. Maybe if it's actually
doing something sensible it would make more sense to you if you saw
the frequency response plot. And if it's doing something nonsensible,
you could at least compare channels.