Builders Choice!

Hosted by AI Synthesis
Saturday, Sept 7 @ 2pm
Difficulty: Varies

AI002 Audio and CV Mixer
Difficulty: Beginner
Cost: $45 

The AI002 DIY Mixer Kit is an updated take on a classic utility audio or cv mixer. All three inputs have a level control, with full clockwise allowing full volume prior to the summing mixer. Perfect for adding audio inputs to a filter, or cv inputs to a cv input, and other mixing functions. This kit is ideal for those who know how to solder, but are still starting out in their DIY Synthesis journey.

This diy mixer kit will not only familiarize yourself with IC Chips, Capacitors, and Resistors, it will also add a key utility module to your DIY Modular Synthesizer.

This is an ideal kit for a beginner learning DIY electronics, and requires no wiring at all!

AI106 West Coast Eurorack Mixer
Difficulty: Intermediate
Cost: $55 

The AI106 West Coast Eurorack Mixer is a fully discrete mixer design that updates vintage West Coast synthesizer mixer designs into a modern form.

This mixer takes inspiration from vintage mixer circuits from 60s and 70s West Coast synthesizers, but updates it for eurorack and allows for user customization of the circuit. True to original circuits, the output is inverted. Audio rate signals will sound about the same, but cv signals will be inverted.

Because "West Coast" synthesis focused more on waveshaping and complex VCO structures as opposed to subtracting frequencies from simple waveforms (East Coast), mixers are an important part of traditional West Coast synthesis techniques.

AI022 Harmonic Mixer
Difficulty: Intermediate
Cost: $55 

The AI022 Harmonic CP3 Style Mixer is a discreet mixer using no ICs. As gain increases harmonics and analog warmth are added. As gain increases more, distortion and phasing is added, creating new waveforms from old ones.

The AI022 takes inspiration from the legendary Moog Modular CP3 style mixer, but updates it for eurorack and allows for user customization of the circuit. Many Moog Modular users attribute the CP3 mixer module to providing much of the warmth of the Moog Modular sound.

An exposed Bias knob allows abuse of the circuit, and allows for faithful replication of incoming audio, or radical analog wave shaping and distortion. It is also possible to use the Bias knob to adjust a +/- 5V signal into a 0/+ or 0/- signal.

AI008 Eurorack Matrix Mixer
Difficulty: Advanced
Cost: $95 

The AI008 Matrix Mixer is an active, Four In, Three Out matrix Mixer with a summed output. The AI008 can be used to route any of the inputs to any of the outputs. This allows for the creation of feedback patches and other interesting routing, in addition to powerful "regular" signal routing. Common uses include mixing effects outputs into their inputs in order to create drones (or just good old fashioned feedback), mixing oscillators into their own PWM or FM inputs, modulating voltage controlled LFOs and other modulators into themselves, and other feedback patches. The AI008 Matrix mixes is a powerful way to expand any system!