Foundation 3 Synthesizer

Complete Voice Analog Modular Synthesizer

[No Longer In Production]



The Foundation 3 Synthesizer is the next generation of a classic. A standalone, fully modular synthesizer styled after the great monosynths of the past with no hardwired signal path or fixed voice architecture to restrict creativity. Complex waveform oscillators and multiple filters driving an all analog signal path pushes the Synthesizer Foundation 3 to new worlds of musical creativity. An unpatched Foundation offers a clean slate for sonic exploration and sound design.  The open format of a modular synthesizer allows for greater control and a deeper understanding of synthesis.

The Foundation 3 Synthesizer is designed to function as a standalone instrument. However, the Foundation 3 is a 100% eurorack compatible modular synthesizer. The system is made up of 13 individual eurorack format synthesizer modules which can be removed, reorganized, and replaced with Pittsburgh Modular or other eurorack compatible modules. The Foundation 3 Synthesizer uses the Pittsburgh Modular Move[104] Case and Power Rail to house and power the modules.


At the heart of the Foundation 3 Synthesizer is a pair of 2nd generation, complex waveform oscillators. The oscillators offer a full complement of standard waveforms including sine, triangle, saw, and pulse waves in addition to a sub octave generator, modulatable blade wave, and serious modulation options, creating a huge sonic base to build on.


The Foundation 3 Synthesizer features our classic multimode filter alongside a character rich lopass gate creating an unmatched sonic palate. 

Dual multifunction envelopes offer a wide range of creative potential. Each envelope module functions as a voltage controlled attack and decay or attack, sustain, and release, LFO, envelope follower, slew (portamento) and more.



Midi to CV Converter

Monophonic Mode

Duophonic Mode

Dual Monophonic Mode

2x Waveforms

Analog Saw Core

Wide Frequency Range

Complex Modulation

Sub Octave Generator

Multiple Waveforms


Dual Independent, Wide Range Voltage Controlled Low Frequency Oscillators


Multi-Function Processor


Noise Source

Sample & Hold

Voltage Inverter


Multi-Function Mixer

4 Channel Mixer

4 Attenuators

Mix Mult

Multi-Function Signal Router

3 Channel Mixer

3 Attenuators

Dual Passive Signal Multipliers

Lopass Gate

Multi-Mode Processor

Low Pass Filter

High Quality VCA

Lopass Gate

Inverting CV Input

Ping Input


Classic Multi-Mode Filter

Inverting CV Inputs

Independent Filter and Oscillator Modes

2x Envelope

Voltage Controlled Signal Processor

Envelope Generator


Envelope Follower

Slew (portamento)

Trigger Delay

Dual VCA

Dual Voltage Controlled Amplifier

Dual Voltage Controlled Mixer

Attenuated CV Input

Pass-Thru Level Attenuators


Stereo or Dual Mono Outputs

Individual Headphone and Line Out Volume Controls

Foundation 3 Synthesizer Manual

Foundation 3 Synthesizer Specs

Heavy Duty Pittsburgh Modular Move[104] Case

     104hp Eurorack Road Case

     Sliding Nut Mounting Nut System

     Removable Lid

     Dimensions with Lid: 22" x 7.5" x 7.5"

Integrated Power Bus Board

     +12v 850mA / -12v 850mA / +5v 250mA

     External 12v / 2000mA / AC Power Adapter

15 3.5mm Patch Cables

      5x 6" Patch Cables

      5x 12" Patch Cables

      5x 24" Patch Cables