Pittsburgh Modular Lifeforms SV-1b Module
Pittsburgh Modular Lifeforms SV-1b Module
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Pittsburgh Modular Lifeforms SV-1b Module

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The Pittsburgh Modular Lifeforms SV-1b Synthesizer Voice is a 48HP Eurorack module featuring plenty of options including oscillators, modulation options, filtering, and essential signal routing tools with more than 55 patch points for routing control voltage, gate, and even MIDI for a comprehensive eurorack system.


The MIDI to CV converter enables you to connect all your MIDI-compatible gear and convert it to control voltage right inside the SV-1b. Volt per octave, gate, CC, and velocity outputs allow you to connect to your MIDI keyboard or DAW while a digital LFO with sine, triangle, square, and quantised random voltage waveforms provides clock sync’d modulation options. A clock input allows you to override the internal or MIDI clock and sync to external CV and gate clock signals. The built-in arpeggiator unlocks another level of playability and the capacity to create complex and fresh musical patterns out of just a few notes.

Oscillator One and Oscillator Two

The custom core, dual analogue oscillators provide the sonic framework for massive synth sounds and a deep exploration of east coast synthesis. Sine, triangle, saw, and square waves are at your control, all available to modulate via FM and hard sync. Oscillator One also contains our unique blade wave. The shifting saw-like shape of the blade wave can be controlled using the width CV input, creating a sweeping or chorusing effect. Oscillator Two is normalled to the FM of Oscillator One, providing jaw-dropping analog FM bass, deep percussive hits, searing leads, and thick, warm analogue pads which all come to life from these two Pittsburgh designed, organic sounding oscillators. Both analog oscillators dip well below audio rate, allowing them to function as voltage controllable LFOs.

Synthesis Tools

A utility LFO with triangle and square wave outputs is ideal for VCA or Filter frequency sweeps. Or, turn it up and release the dynamic FM capabilities of either oscillator. A Tools section provides access to two sub-octave oscillators, derived from Oscillator One’s core frequency. Analogue noise and sample & hold finish out the Tools section.

Dual Mixer

This versatile four channel mixer comes pre-wired for fast access to Oscillator One’s sine, saw, pulse and sub. However, you are just a patch cable away from instantly making your own unique blend of waveforms from the SV-1b. The mixer can also be split into two independent two channel mixers for maximum patching flexibility.


Smooth and thick, the sound of the revered Pittsburgh Modular Filter is unmistakable. Stunning harmonic character with voltage control over the entire frequency range. A provided attenuverter lets you dial in exactly how much CV to feed the frequency input, even inverting the input for dramatic changes in modulation. Separate highpass, lowpass, and bandpass outputs are provided as breakout options, each with their own powerful sonic timbres. Turn up the resonance for an added growl, giving your tones an aggressive edge that no softsynth can match.

Envelope Generator

Designed specifically for the Lifeforms SV-1b with a plucky, organic feel, our four-stage analogue ADSR allows you to generate envelopes with remarkable, precise control over each stage. Pre-patched to receive gate signals directly from MIDI, the gate input may be overridden by any available clock, trigger, or square wave source.

Voltage Controlled Amplifier

The amplifier section not only controls the overall level of the output, but is voltage controllable. A clean, responsive VCA, capable of everything from transparent control to mild overdrive contours audio or CV signals. The ADSR is pre-patched to the level CV providing shape to the synthesizer audio.

Signal Splitters

Two unbuffered audio or CV splitter sections allow you duplicate your signal in creative ways, routing a single audio or CV source to multiple destinations.

Line Level and Headphone Outputs

High quality stereo headphone amplifier and monophonic line level outputs controlled by a unified volume knob.

Module Specifications

  • Panel size: 48hp
  • Depth: 35mm
  • Power Usage: +12v 230mA, -12v 200mA. Does not require +5v. Includes reversed power polarity protection.

Video: https://youtu.be/1TzL3ZTgRRY

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