First Order
Second Order Resonant
Massberg Low Pass Resonant
Bristow Johnson Low Pass Resonant
State Variable Low Pass Resonant
First Order
Second Order Resonant
Band Pass
Band Stop
Low Pass
Low Pass Variable Order
High Pass
Band Pass
Band Stop
Oberheim Variations
Cascade Low Pass Resonant Variable Order 2,3,4,5,6
Variable Slope
Linkwitz Riley, Low Pass, High Pass, Band Pass
Polar Morph Biquad Visual Poles and Zeroes
Voltage Controlled Low Pass Resonant Ringing
Voltage Controlled High Pass Resonant
Ladder Low Pass Resonant
Diode Low Pass Resonant
Parametric
Low Shelf, First Order, Second Order
High Shelf, First Order, Second Order
Parametric 6 Band EQ
Parametric 12 Band EQ