'Ivo' is a resonant low-pass VCF (Voltage Controlled Filter), switchable between 2-pole (12dB/octave) and 3-pole (18dB/octave) responses, with voltage control over feedback (resonance) as well as cutoff frequency. It will self-oscillate in 2-pole mode.
The module has two audio inputs, one with an attenuator, so it will also mix two signals at the filter input.
The module is 100% analogue, using discrete transistor OTAs.
Ivo's specifications are as follows:
- Panel width: 8HP
- Module depth: 37mm
- Current draw: 22mA on the +12V rail, 18mA on the -12V rail
- Cutoff (approximately 1V/octave)
- Cutoff (with attenuator)
- Feedback (with attenuator)
- Audio input
- Audio input (with attenuator)
- Audio output
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