3DVCA Black Panel

Powerful. Versatile. Chainable.

Buy now
View manual


Every once in awhile I put a small number of black panel modules on the website for you folks that don't buy modules unless they are black. Usually we put a limited number of modules on our website and sell them until they are gone but instead this time we are trying out a new method: we will sell an unlimited number of black panel modules for one day (November 24th aka Black Friday) and then build them to order. This will hopefully reduce the frustration of folks who just miss the sale but also keep the number of black panels low so that they are rare like a holographic pokemon card. We have a certain number of black panel 3DVCAs already built but please be aware that it may take a week or two to ship your order once we run out of the premade modules. Once the sale ends black panel modules will no longer be for sale and I don't know when they will be back, if this goes well I will at minimum make the Black Friday Black Panel sale a yearly thing.


Designed to be a highly customizable connection matrix, 3DVCA packs a boat load of utility into a small 6HP package. Four VCAs share the three macro controls: X, Y, and Z. As a group, they shape incoming and outgoing signals and emulate the coordinates of a point in 3 dimensional space. This allow the VCAs to work together in a mono, stereo, or quad configuration and accomplish a variety of mixing, crossfading, and panning functions.

3DVCA is designed to be used in the following functions:

- Quad monophonic crossfader

- Dual stereo crossfader

- Stereo balancer

- Stereo VCA

- Mono to stereo panner

- Unity mixer with up to eight inputs

- Quadraphonic panner

Each output has a dedicated SUM input which allows an external signal to be automatically mixed into the output signal. This allows 3DVCA to daisy chain both with other mixers and other 3DVCAs. For example, you can create a full mono, stereo, or quadraphonic mix by plugging the output of each 3DVCA into the sum inputs of the next 3DVCA in the chain. Using this method, a set of 3DVCAs can create a fully voltage controlled and decentralized mixer which ties together anything from a small skiff to a monster synth.

When 3DVCA works as a crossfader or panner, the X and Y parameters follow an equal-power curve that keep output signals at the same volume no matter how many inputs are mixed together. This is in contrast to the Z parameter which follows a linear curve to always behave predictably with external modulation sources. All inputs are fully DC coupled in order to work with modulation speed signals as well as static DC voltage sequences; this means that 3DVCA can handle any sort of signal that you throw at it. All op amps in the device employ rail-to-rail inputs and outputs to enable the largest headroom when mixing many different signals together.

Whether you need to maximize your mixing functionality in the smallest possible footprint or have the most control over every aspect of your system, 3DVCA provides a ton of functionality in any system.  Enter a higher dimension of sound with the Mystic Circuits 3DVCA.


find us here

No items found.