STS Serge M-Class Panels

Sound Transform Systems is now offering Serge modules in a new format, called the M-class. These are about half the size of standard Serge panels and allow one more flexibility of module choice at a much lower price point. These half-width "M-odules" fit two to an enclosure called an "M-boat". M-boats may be used as a stand-alone case or racked in a standard 19" rack with optional rack ears. M-Boats contain a center section housing an integral power distribution strip and a voltage-controlled diffuse blue LED that may be patched from the face as a useful visual indicator of voltage or logic state.

Below are diagrams and quick descriptions of some of these M-odules. This is just a small sampling of the avaiilable M-odules - for a complete listing, including full Function Block descriptions, please check out the Serge Spreadsheet! A few M-odules paired in an M-Boat or an M-Case would make a mighty Serge indeed. ^_^


The Creature is one of the first available M-class panels and is currently the smallest self-contained complete Serge synthesizer to date.
It contains, from left to right: XFAD, VCFQ, TGO and an SSG.
For an overview, please visit the dedicated Creature page.


The Gator is a rhythmic monster well suited to be the bride of a Creature but with many other possibilities as well.
It contains, from left to right: TGC, NCOM, PDIV, BLOG and an XFAD.


The Sequencer is a wonderful source of rhythmic sequenced voltages courtesy of its 8 X 2 sequencer and VC TimeGen Clock.
It contains, from left to right: SEQ8, ACPR and an TGC.

SQP Sequencer:

The SQP Sequencer is comprised of our old friend the 6 Stage Sequencing Programmer capable of 6 X 4 sequencing or recall of 6 stored quad voltage banks.
It contains the SQP6.

Triple Oscillator:

The Triple Oscillator does what it says on the tin. Three great-sounding, rock-solid Serge oscillators in one place.
It contains, from left to right: NTO, PCO and another PCO.

Quad Slope:

The Quad Slope is probably the most flexible M-odule available because of the huge variety of tasks the DSG is capable of.
It contains, from left to right: DSG, BUFF and another DSG.

Wilson Analog Delay:

The Wilson Analog Delay is a great processor for audio and CV.
It contains, from left to right: DTG, MPRO, WAD and XFAD.

CV Matrix Mixer:

The CV Matrix Mixer is a multi-flexible mixer/processor for control voltages.
It contains, from left to right: CVMAX, ACPR and ACPR.

Dual ADSR:

The Dual ADSR is a fantastic source of transient and repeating CV as well as flexible generation/processing/manipulation courtesy of an all-purpose DTG.
It contains, from left to right: DTG, COM, ADSR and ADSR.

Wave Processor:

The Wave Processor is a collection of function blocks with a penchant for jaw-dropping audio manipulation.
It contains, from left to right: RING, TWS, VCM, AMX and XFAD.

Audio Interface:

The Audio Interface is a great way to get your audio into the Serge and derive CV from it as well as process it.
It contains, from left to right: PRNV, EQ, DSG and VCOM.


The Klangziet does what it sounds like it might. Recursive frequency shifting and audio craziness.
It contains, from left to right: FRS, C/M, WAD and XFAD.


The Mayhem Module is a source of all sorts of controlled and uncontrolled chaos.
It contains, from left to right: VCOM, DTG, SSG and RS.


The Multifilter is a great collection of the unique Serge filters - all in one compact package!
It contains, from left to right: VCFS, VCF2, VCFQ and an MPRO.

ASR Quantizer:

The ASR Quantizer is a wonderful mate for your favorite sequential voltage source as well as a good clock for said function blocks.
It contains, from left to right: TGC, NCOM, ASR, ASR and an QUAN.

Along with the new format comes a new power supply, the PS2a. Here's the rundown of its features:

Serge Modular systems and panels are currently manufactured by Sound Transform Systems in Hartland, Wisconsin. You can reach them at (262) 367-3030.

What you give is what you get.

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