GK 400RB eq question

[bigboote]

does anyone know the specs on those pushbutton filters? how about a variable high pass mod? anyone tried this?

[duff2]

The graph below illustrates which frequencies are affected and to what extent they are boosted or cut when each of the voicing filters are separately engaged. All control knobs in the EQ section of my amp were set to the 12 O'clock position for prior to taking these measurements.



Cheers,
Duff2

[bigboote]

that is enlightening, thanks! the low cut is not very steep, like i thought. the high shelf, though, weird. it seems to boost the whole freq range. it would be nice to tweak the low cut so that it is steeper. i usually have it engaged, but with some boost dialed back in on the bass eq. i aslo didn't realized the 400 already had some natural mid scoop.