Subject: [NM] big fat filters

Big Fat Filters

by David Peck

Here's one that lets you play with lots of combinations of filter overdrive. A pair of 12dB filters (one at the top, one at the bottom) are linked to form a 24dB filter, with some fun stuff in the middle. First, a diode distorter with crossfade control. Then, a wide-open distortion filter ("GC" button is OFF) with feedback for overdrive.

Note that each 12dB filter has a feedback loop, and there's an overall feedback loop from the last filter back to the first one.

Kn 1 - 2 - 3 ......Filter Fc, Res, Mod Depth

Kn 4 - 5 - 6 ......Three Feedback controls

Kn 7 - 8 - 9 ......Diode & OD Filter controls

Kn 13 - 4 ..........EG controls

Kn 15 ...............Portamento

Kn 16 - 17 - 18 ..Osc level controls.