The Filtare SEIII is a multimode, state-variable voltage-controlled filter that gives you low-pass, band-pass and high-pass outputs which are all simultaneously available. It also includes a notch output which allows you to change the balance between low-pass and high-pass. The SEIII uses discrete components but is based on SSM2040 architechture, giving you a very musical sounding filter. There are CV inputs for frequency, resonance and notch balance. The 1 V/O CV input for frequency can be used to have the VCF follow what you're playing on the keyboard or just crank up the resonance and use it to play sine-waves.
Modes: LP, BP, HP
All modes are 4-Pole (24dB/Octave)
Notch: Change balance between LP and HP (total drop with balance at center is 3.4dB)