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New 13- and 19-pin Single String Guitar Effects Demo System in One!

Enter the exciting world of polyphonic guitar processing!

This latest iteration of our demo system includes both guitar input modules:

  • The 13-pin Input Breakout module with 40dB gain (in the top row) for use with Roland GK guitars

  • The 19-pin Input Breakout (in the bottom row) for use with Cycfi Research Nu Multi equipped guitars

The 13-pin Input Breakout module has an integrated 7-Channel Amplifier which is normally connected to the 13-pin GK input jack. These normaled connections can be broken by inserting patch cables into the Input jacks, allowing for the 19-pin Input Breakout to use the amplifier section instead.

The typical audio path would be as follows:

Depending on the module sequence, SynQuaNon Audio Bus connections on the rear of the modules significantly reduce the number of patch cables on the front panels. However, all bus connections can be broken by patching through the front panel input jacks.

The typical modulation signals include:

The Hex VU Meter and Hex EF/Gate/Trigger modules are connected via SynQuaNon Audio Bus cables to the 7-Channel Amplifier output. In addition to having envelope follower (both normal and inverted), trigger, and gate outputs, other modulation sources include an octal low frequency oscillator (LFO), 6-channel sequencer (for arpeggio effects, etc.) and a 6-channel envelope (Attack-Release) generator (EG). Together these modules provide a nice array of modulation sources for the Hex VCF and Hex VCA.

Dual expression pedal inputs!

A key module is the Expressor, a dual expression pedal interface that generates a variety of DC control voltages (CVs) for foot pedal control of the Hex VCF and Hex VCA Master CV inputs. In addition, this module can use the expression pedal as an attenuator/volume control for other CVs, such as the LFO or sequencer, or even audio signals. A very handy interface!

Line level converters

Finally, there are line-to-Eurorack level converters for two 1/4" TRS inputs and Eurorack-to-line level convertors for six 1/4" TRS outputs on the back of the case. These allow the system to connect signals from anywhere in the audio or CV chain to interfaces and digital audio workstations (DAWs).


We kept this demo system case fairly simple yet extremely versatile and capable of a variety of novel tones regardless of the type of hexaphonic guitar you use. It has a metal cover that allows you to leave your patch cables connected and travel to jam sessions (it fits in an aircraft overhead compartment!).

Sign up to try it out!

Please contact us via this website or Facebook page if you'd like to be added to the wait list to try out this system! All we ask for in return are some recordings of cool patches you've come up with. Thanks!

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