MATRIXSYNTH: The Purple Modular

Wednesday, February 25, 2009

The Purple Modular

via this auction

"In September 2002, Roger Arrick of produced a one of a kind purple faced version of his modular synth. Normally, these modules are black. It is housed in a custom QCP22 22-Space Portable Cabinet which is also sporting a nice grey tolex covering, another unique feature. The modules also have blue LED's instead of the standard red ones. has never produced any modules in any other color than black, and this particular synth was produced as a one-of-a-kind item by them.

This modular synth is pure analog heaven. It has three oscillators and two filters. One filter is a "Moog" type transistor ladder filter switchable 12 or 24dB/octave. The other filter is a "State Variable" filter. This modular is similar in capability to a MiniMoog but with an extra filter, full patchability and other things like a "Clipper" and a Sample & Hold module.

This synth can be controlled by either Midi (via its own Q104 Midi Interface module) or any external Control Voltage (CV) device using the 1V/octave CV standard. Since this is a true modular synth there is no internal patching, like in an ARP 2600, so you will need patch cables to make sounds. The only patching internally is for powering the modules from the internal power supply.

After its initial manufacture, the first owner of this synth was Joe "Guido" Welsh. It was housed at his private studio, Guidotoons located outside of Nashville. Joe then sold the item to John LeVasseur, who used it extensively for his ambient progressive rock project Airfoil. John is the person offering this item for auction. (Hi!) This is the complete provenance of this item.

Examples of music (and additional images) made on this actual synth up for auction can be found at the owners MySpace music page at

Module Compliment []
1 - QCP22 Vinyl Covered Portable Cabinet
1 - Q104 MIDI Interface
1 - Q137 Power Control & Interface Module
1 - QPS1 Large Power Supply
3 - Q105 Slew Limiter
3 - Q106 Oscillator
1 - Q107 State Variable Filter
1 - Q150 Transistor Ladder Filter
2 - Q108 Voltage Control Amplifier
2 - Q109 Envelope Generator
1 - Q112 4ch Mixer
1 - Q125 Signal Processor
1 - Q105 Slew Limiter
1 - Q130 Clipper/Rectifier
1 - Q110 Noise Source
1 - Q117 Sample & Hold
1 - Q116 Ring Modulator
1 - Q124 Multiples"


  1. Let me just say that if someone actually pays several thousand dollars too much for a little purple paint, they are an even bigger retard than the person gouging said retard for so much $$$$.

    Completely absurd

    shame on you, its not like .com is rare or something

  2. It's so pretty. I want one.

    No, I want two.



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