Pittsburgh Modular Cell[48] System 1 Semi-Modular Analog Synthesizer


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  • Description
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The Cell [48] System 1 is the perfect way to begin your venture into the world of modular synths.

The Cell [48] System 1 is a complete single voice, analog synthesizer and a great entry point into modular synthesis. Using the Synthesizer Block module as it's centerpiece, the System 1 contains all of the most important components of a modular synthesizer. Connected internally, the Cell[48] System 1 is hardwired to create a complete monophonic synthesizer without needing to add patch cables. However, each major component within the System 1 is fully patchable and can function independent to the rest of the system by using the available patch points and included patch cables.

An unpatched Cell[48] System 1 offers direct access to a wide array of classic analog monosynth sounds. Without a single patch cable, deep bass and warm sweeping leads are just a few knob tweaks away. Plugging in a few patch cables opens the Cell[48] System 1 to experimentation by offering unlimited control over both the modulation and audio signal paths. The full functionality of the Oscillator, Filter, LFO, Envelope Generator, VCA, Midi, and Outputs can be broken apart and used like standalone synthesizer modules. All of the elements of a classic voltage controlled, modular synthesizer are available as an open, patchable, modern synth.

Wired for instant access to classic tones without needing a single patch cable, the Synthesizer Block is a complete semi-modular, monophonic synthesizer. The Synthesizer Block is 100% analog and 100% Eurorack compatible with a complete set of patch points able to override the internal audio and CV signal path.

Synthesizer Block

The Synthesizer Block was designed to be the core of any modular system. Each major component is fully patchable and can function independent to the rest of the module. This allows the functionality of the Oscillator, Filter, LFO, Envelope Generator, and VCA to be broken apart and used like standalone modules.


  • Full Range Sawtooth Core Oscillator
  • Oscillator Waveform Mixer
  • Voltage Controlled Low Pass Filter
  • Wide Range Low Frequency Oscillator
  • Glide Control for Portamento Effects
  • ADSR Envelope Generator
  • High Quality, Linear Response, Voltage Controlled Amplifier


  • Voltage Controlled Waveform Generator
  • Coarse and Fine Tune Rate Controls
  • Frequency Modulation (FM) CV Input Attenuator (Internally patched to LFO Triangle Wave)
  • Pulse Width Modulation CV Input Attenuator (Internally patched to LFO Triangle Wave)

Oscillator Patch Points
  • One Volt Per Octave Input
  • Reset Input
  • FM CV Input (Overrides Internal Routing)
  • PWM CV Input (Overrides Internal Routing)
  • Triangle Wave Output
  • Saw Wave Output
  • Square Wave Output
  • (Voltage Controlled 12db Low Pass Filter)
  • State Variable Filter Core with Voltage Controlled Cutoff Frequency
  • Cutoff Frequency CV Attenuverter (Internally patched to ADSR Output)
  • Cutoff Frequency and Resonance Controls

Filter Patch Points
  • Cutoff Frequency CV Input (Overrides Internal Routing)
  • Audio Input
  • Audio Output
  • (Low Frequency Oscillator)
  • Wide Range is Perfect for Long Sweeps or Audible Rate Frequency Modulation
  • Rate Knob and Range Switch Controls

LFO Patch Points
  • Triangle Wave Output
  • Square Wave Output
Envelope Generator
  • (ADSR)
  • 4 Stage Envelope Shaper
  • Attack, Decay, Release Knobs
  • Sustain On/Off Switch

Envelope Generator Patch Points
  • Gate Input
  • Envelope Output
  • (Portamento)
  • Hardwired between the 1 Volt Per Octave Input (1V/O IN) and the Oscillator
  • Glide Amount Knob
  • (Oscillator Waveform Mixer)
  • Waveform Mixer for Oscillator Outputs.
  • Triangle Wave Attenuator
  • Saw Wave Attenuator
  • Square Wave Attenuator

Mixer Patch Points
  • Mix Output
  • (Voltage Controlled Amplifier)
  • High Quality, Linear Voltage Controlled Amplifier
  • CV Input Attenuator Knob

VCA Patch Points
  • CV Input (Internally patched to ADSR Output)
  • Signal Input (Internally patched to Mix Output)
  • Signal Output
  • 28hp

  • 35mm

Power Usage
  • TBD

Things You Will Get:

    Synthesizer Block Module
    M3 Module
    Midi2 Module>br/>Outs Module
    4hp Logo Panel
    Cell [48] Case
    Single Row Hardwood Side Panels
    450mA Linear Power Supply
    5 Patch Cables
    System 1 User Manual


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