A problem that bass players have, is that we often need a High-Pass Filter like the ones you find on recording consoles for room correction and prevent excessive low end boominess.

It would be nice to have a pedal with two knobs:

1) [strong]Frequency[/strong]: sweepable from let’s say 30 Hz up to 100 Hz.
2) [strong]Shape[/strong]: at minimum, full counter-clockwise, a hard 90 degrees knee. Then, the more you turn up, the more you have a softer shelf shape.

If you build it, we will come…

Thanks.