Introduction
'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.
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.
Reviews
Sound On Sound magazine (June 2022 issue - read the full review here) said
The 2‑pole setting, with its 12dB/octave ratio, is capable of some filthy, acidic filtering across a wide range, encouraging liberal use of the feedback (that is, resonance) parameter. The 3‑pole setting, meanwhile, which works at a steeper 18dB per octave, is gentle and warm, rendering the feedback parameter a somewhat classier tone‑shaping tool.
Waveform Magazine (issue #7 - read the full review here) said
Ivo is definitely excellent sounding and pretty clean. Which doesn’t mean it can’t scream, too; it howls with the best of them
The 2‑pole setting, with its 12dB/octave ratio, is capable of some filthy, acidic filtering across a wide range, encouraging liberal use of the feedback (that is, resonance) parameter. The 3‑pole setting, meanwhile, which works at a steeper 18dB per octave, is gentle and warm, rendering the feedback parameter a somewhat classier tone‑shaping tool.
Waveform Magazine (issue #7 - read the full review here) said
Ivo is definitely excellent sounding and pretty clean. Which doesn’t mean it can’t scream, too; it howls with the best of them
Specifications
Ivo's specifications are as follows:
For more detail, please see the user manual.
- Panel width: 8HP
- Module depth: 37mm
- Current draw: 22mA on the +12V rail, 18mA on the -12V rail
- Inputs:
- Cutoff (approximately 1V/octave)
- Cutoff (with attenuator)
- Feedback (with attenuator)
- Audio input
- Audio input (with attenuator)
- Outputs:
- Audio output
For more detail, please see the user manual.
Pricing & Availablity
Ivo is available now.
MSRP: UK £159 (inc VAT), US $189 (exclusive of sales tax), EU €154.36 (exclusive of VAT)
For purchasing links, please see where to buy.
MSRP: UK £159 (inc VAT), US $189 (exclusive of sales tax), EU €154.36 (exclusive of VAT)
For purchasing links, please see where to buy.