Synthesizers.com Portable Systems

QSP22 Image

Synthesizers.com is a company in the USA that makes classic styled custom analog modular systems and sells them over the internet! They offer pre-built systems such as the QSP22 (pictured above) and QSP44 which offer 22 or 44 space road-worthy cabinets, respectively, and a selection of modules. You can also customize your own System by choosing which modules you want them to install for you.

The form factor is the same as Moog Modulars but with an upgraded power supply system. The systems offer hyper-modularity which allows any module to be placed anywhere without rewiring, including power modules. Synthesizers.com modules will fit into Moog modulars and the signal levels are compatible. A wide variety of modules offer a raw, analog sound, including stable oscillators that will track over many octaves, a 24dB ladder filter, a state variable filter, and a 14-bank fixed filter. The 24-step analog sequencers can be daisy-chained for more stages and offer unique control features not found on your typical sequencers.

The QSP Portable Systems use the same traditional patching, routing, knob fiddling and scientific tinkering of old-school modular synthesizers, with all the benefits of today's technology! The user interfaces of most modules include reversible attenuators and mixers to minimize patch cable clutter, and to make patching more intuitive. These synths are perfect for anyone interested in learning to use analog synthesizers in their traditional form. These systems are expandable and affordable compared to those old and unreliable vintage systems! Also available in Studio and Rack systems.

Modules from Synthesizers.com

QSP22 Modules

  • 1) Q137 Power Control/Interface
  • 1) Q104 MIDI Interface
  • 1) Q105 Slew Limiter
  • 3) Q106 Oscillator
  • 1) Q107 State Variable Filter
  • 2) Q108 Amplifier
  • 2) Q109 Envelope Generator
  • 1) Q110 Noise Source
  • 1) Q112 Mixer
  • 1) Q116 Ring Modulator
  • 1) Q117 Sample & Hold
  • 1) Q124 Multiples
  • 2) Q125 Signal Processor

QSP44 Additional Modules

  • 1) Q103 DC Power Interface
  • 3) Q106 Oscillator
  • 2) Q108 Amplifier
  • 2) Q109 Envelope Generator
  • 1) Q111 Pan/Fade
  • 1) Q112 Mixer
  • 1) Q118 Instrument Interface
  • 1) Q120 Connector Interface
  • 1) Q124 Multiples
  • 1) Q125 Signal Processor
  • 1) Q128 Switch
  • 1) Q130 Clipper/Rectifier
  • 1) Q131 Blank Single Panel
  • 1) Q141 Oscillator Aid
  • 1) Q142 Pedal Interface

Other Modules

  • Q113 8-Channel Mixer
  • Q115 Reverb
  • Q119 Sequencer
  • Q121 Banana Jack Interface
  • Q122 Mini Jack Interface
  • Q123 Standards
  • Q127 Fixed Filter Bank
  • Q140 Fixed Filter Bank Aid
  • Q143 Presets
  • Q146 Normalization
  • Q147 Distributor
  • Q150 Tran Ladder Filter
  • Q161 Oscillator Mixer
  • Q162 Filter Mixer

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The link above will take you to a search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

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1 Visitor comments
Bill Y
October 8, 2011 @ 8:19 pm
I have a dotcom P44 (two 22-space cabinets), and it _rocks_. This thing can make sounds that my long-gone Oberheim Xpander can only dream about. About 2/3 of my modules are actual "dotcom" (5 VCOs, 2 mixers, 2 VCAs, both the SV and ladder filters), the other modules are a "Franken"-Steiner filter, a quad LFO, and a digital delay from SSL, a pair of Oakley EG-VCAs, an Encore UEG, and a Moon Modular MIDI->CV. It's portable (barely) if you're really really strong, otherwise the "portable" part of the name is a cruel joke (and the only downside to these wonderful synths).
 
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  • Check Prices on eBay
  • The link above will take you to a search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - Monophonic / Polyphonic
  • Oscillators - Q106 - Analog Oscillator with Sine, Triangle, Saw, Ramp and Pulse waveforms. QSP22 has three, QSP44 has six.
    Q110 - Noise Source makes White, Pink and Low Freq. Noise
  • LFO - Q106 - Analog Oscillator with Sine, Triangle, Saw, Ramp and Pulse waveforms
    Q117 - Sample and Hold
  • Filter - Q107 State Variable Filter - 12dB/oct Low/Band/High Pass and 6dB/oct Notch modesQ116 Ring Modulator - combine two input signals
  • VCA - Q108 Amplifier - Gain controls with multiple input options
    Q109 - Envelope Generator - Attack/Decay/Sustain/Release
  • Keyboard - 5-Octave Studio Keyboard (optional). Monophonic and Duophonic operation. Outputs pitch control voltage, gate, velocity control voltage, and a trigger pulse.
  • Memory - None
  • Control - Q104 - MIDI Interface (MIDI IN, Gate Out, Trigger Out, Pitch Out, Velocity Out)
  • Date Produced - Since 2000

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