Erica Synths - Fusion VCF (v1)


Resonant, voltage controlled tube lowpass filter with a wide range of sonic possibilities from juicy tube sound over extreme, distorted sounds up to self-resonating screams.



The Erica Fusion VCF is a very special lowpass filter, despite it's "T bandpass" design with a tube working simultaneously as a preamplifier and filter feedback driver. Both audio inputs are fed directly into the tube, are mixed there and they accept almost all audio levels. The level controls allow for adjusting the inputs up to distortion.
The cutoff frequency can be modulated by CVs at the two CV inputs, the first of which has an attenuator.
Besides the main audio output the module features a phase inverted output.

The module colors the sound a lot and often resembles a heavy fuzz, and the resonance begins early. Especially at low input levels the resonance gets strong and at no input the filter can oscillate.


Erica Fusion modules have insignificant (max 15mA) power consumption from eurorack power supply unit (PSU), but they require separate, easy to install 6VAC PSU for tube heaters. Erica Fusion 6VAC PSU is designed to power up to 7 Erica Fusion modules.
You can purchase the tube heater power supply HERE.


Two audio inputs, one audio output, one inverted audio output
two cutoff CV inputs, CV In 1 has an attenuator


3U Eurorack module, 16HP wide, 30mm deep
power consumption:13mA@+12V, 10mA@-12V and additionally 300mA@6VAC

0,3 kg
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This item is discontinued or sold out and no longer available, please feel free to look for comparable new stuff in the following categories.