A quick run through of some of the filter types available by mixing the Dr. Octature's variously sloped and phased low pass filter outputs.
In the first section, the filter is fully open with no resonance. Only the 6dB output is being monitored.
In the second section, the filter is being modulated by a looping envelope. All QMMG channels are set to VCA-- we're listening to the Mix Out:
6db out --> QMMG channel 1
12db out --> QMMG channel 2
18db --> QMMG channel 3
24db --> QMMG channel 4.
Input: a sine and saw mix from a Z3000, with its triangle fed back into the linear FM input (index at noon), driving a Blacet Miniwave (wavetable value modulated by a looping envelope).