Vermona tVCF-Extension for twinVCFilter Eurorack Module
Vermona twinVCFilter is a versatile filter module on its own, but there are times when you need some additional features like a notch filter. In this case, Vermona tVCF-Extension is your friend!
Individual filter outputs
tVCF-Extension has individual outputs for each filter type available on twinVCFilter and even adds notch outputs. You can use all outputs at the same time.
Polarizers
As you may know, twinVCFilter already has two CV inputs per filter section. Vermona realized that might not be enough for complex patches, so tVCF-Extension has additional CV inputs to modulate the cutoff frequencies, each with a dedicated polarizer for attenuating and inverting incoming voltages. With these you will get new modulation possibilities, like controlling both cutoff frequencies at the same time in parallel or in opposite directions.
To get even more out of the module, you can separate the polarizer section from the cutoff frequencies and use them independently of twinVCFilter. They, too, can generate a voltage on their own.
tVCF-Extension is an elegant and compact way to extend the vast possibilities of twinVCFilter.
- Physical specifications
- Size: 10hp
- Module depth: 30mm
- Power usage with twinVCFilter (sold separately): 105mA @ +12V, 75mA @ -12V

Description
Vermona twinVCFilter is a versatile filter module on its own, but there are times when you need some additional features like a notch filter. In this case, Vermona tVCF-Extension is your friend!
Individual filter outputs
tVCF-Extension has individual outputs for each filter type available on twinVCFilter and even adds notch outputs. You can use all outputs at the same time.
Polarizers
As you may know, twinVCFilter already has two CV inputs per filter section. Vermona realized that might not be enough for complex patches, so tVCF-Extension has additional CV inputs to modulate the cutoff frequencies, each with a dedicated polarizer for attenuating and inverting incoming voltages. With these you will get new modulation possibilities, like controlling both cutoff frequencies at the same time in parallel or in opposite directions.
To get even more out of the module, you can separate the polarizer section from the cutoff frequencies and use them independently of twinVCFilter. They, too, can generate a voltage on their own.
tVCF-Extension is an elegant and compact way to extend the vast possibilities of twinVCFilter.
- Physical specifications
- Size: 10hp
- Module depth: 30mm
- Power usage with twinVCFilter (sold separately): 105mA @ +12V, 75mA @ -12V














