BANK / fixed filter bank

BANK consists of 12 band-pass, one high-pass and one low-pass filter to cover the full audio range. The circuit is based on the Yusynth FFB, but it's packed much smaller than other versions of this module.

There are two inputs with different gain levels that go through an attenuator pot for input level adjust. All twelve bandpass filters feature a -12db/octave slope, while the low-pass and the high-pass filters feature a -24db/octave slope. All filters are resonant and their gain is easily adjustable from minimum (completely silent) to maximum.

There are three outputs: one output for odd cells (dotted pots), one output for even cells (pots with solid line around them) and a mix output for all cells.

This is an essential module for sound sculpting, it works like a graphic EQ, but at the same time there are some differences which lie mainly in the higher resonance, steeper bandpass slopes and the ability to completely mute the bands.