Fusion VCF3

The Erica Synths Fusion VCF3 is a unique and highly musical 24dB/octave low-pass filter for Eurorack modular systems. As part of the esteemed Fusion series, the VCF3 utilizes a combination of vacuum tubes and vactrols to create a filtering experience that is exceptionally soft, warm, and rich in character. This filter is designed for those who appreciate the subtle nuances and organic response of classic analog circuits. The Fusion VCF3 is more than just a filter; it is a creative tool that can add a beautiful and distinctive voice to any patch, from gentle and evolving pads to squelchy and resonant basslines.

The all-analog design of the Fusion VCF3 is what gives it its special sonic signature. The interaction between the vacuum tubes and vactrols results in a filtering characteristic that is both smooth and full of life. It's important to note that due to the inherent lag of vactrols, this filter is not intended for audio-rate modulation, with a maximum modulation frequency of around 10Hz. This makes it ideal for slower, more expressive filter sweeps. The module includes an independent audio mixer at the input stage with a gain of 2, allowing you to overdrive the input signal for added warmth and saturation. A buffered multiple is also included for splitting audio and CV signals without signal degradation. A standout feature of the Fusion VCF3 is the integrated potentiometer motion recorder. This allows you to record the movement of the cutoff knob and then play it back as a CV signal, enabling you to create complex and repeatable modulation patterns. The recorded CV can also be multiplied and divided for further variation. This unique combination of a beautiful-sounding filter and a creative modulation source makes the Fusion VCF3 a truly special module.

Features

• Full analog design with a vacuum tube and vactrol-based filter circuit.
• 24dB/octave low-pass filter with a soft and musical character.
• Input signal mixer with a gain of 2 for signal overdrive.
• Buffered multiple for splitting audio and CV signals.
• Potentiometer motion recorder with CV and gate outputs.
• Recorded CV can be multiplied and divided.
• Maximum modulation frequency of 10Hz due to vactrol lag.
• Part of the renowned Erica Synths Fusion series.