Free State FX FSFX104 Haible Resonators

The Free State FX FSFX104 Aka. Haible Resonators is an adaptation of the resonator circuit found in the Moog PolyMoog synthesizer, which in itself was a circuit design by Jurgen Hiable of synth DIY fame.
The Hiable Resonators module is essential a complex filter circuit, which can operate in low pass, band pass, notch or high pass modes. The aside from the global resonator setting, the module also include three band EQ, three separate fixed band cut off frequencies and emphasis (resonance) controls for the given fixed bands.
Designed to provide vowel style, format and simply obscure resonance tones, the FSFX103 is an incredible tool for crafting the sound in your head.
Another circuit that is otherwise complete unobtainable in the the 5U format the FSFX103, brings complex Resonator style filtering and processing to your large format modular system.
The main features of the Free State FX FSFX103 Hiable Resonator Include
Complex resonator circuit derrived fromt he PolyMoog
Four modes of operation, low pass, high pass, Notch and band pass
Includes two audio inputs
Wet and dry mix and resonance level
Three band EQ with emphasis controls