The core of the Erica Synths Fusion VCA v2 is a Russian miniature pentode 1Ж24B with power consumption comparable to an LED. The Fusion series modules are designed by combining vacuum tubes and semiconductors – therefore they bring the warm, powerful sound and overdrive possibilities of vacuum tubes into your modular system.
Erica Synths developed unique audio and tube control circuits so Fusion VCA sounds like nothing you’ve heard before. The Feedback control adds harmonics to the original signal – and acts similar to the cutoff knob on VCFs – and the Deform knob controls amount of distortion in the germanium diodes-based circuit.
- Miniature pentode-based VCA
- Manual VCA bias control
- Audio signal feedback control
- Germanium diodes/tube overdrive
- Waveshaping – signal “Deform”
- 2 input signal mixer
- 2 selectable overdrive flavours
A note about power:
Please make sure your PSU has some power headroom before installing Fusion modules – especially multiple units. (ie: you’ll need enough power for the Fusion modules to be able to potentially use DOUBLE their required power during the startup process)
All Fusion modules by default are configured to work with a regular Eurorack PSU. However, due to the fact that cold tube heaters have lower resistance, Fusion modules have significant power consumption peak at startup, when power consumption almost doubles for 1-2 seconds.
This is not a problem with linear PSUs that have power inertia, but you may find that the internal protection feature on switching PSUs temporarily turns off the power supply if there isn’t enough headroom to accommodate this additional power consumption.
Power: 21mA @ +12V / 32mA @ -12V (allow for up to double this consumption during startup)
Video below shows the FUSION VCA v2 used in combo with the FUSION VCF v2
FUSION modules from 4.44 onwards in the video below:
..and here you can hear the FUSION VCA v2 along with the other FUSION modules.