MATRIXSYNTH: CMS Cirocco Discrete Synthesizers MC-24 Modular System

Sunday, January 31, 2021

CMS Cirocco Discrete Synthesizers MC-24 Modular System



via this auction

"For your consideration is a custom built CMS MC-24 modular discrete analog synthesizer, housed in a solid Honduran red mahogany cabinet.

Brief Description:

The MC-24 comes equipped with 8 ultra-linear discrete VCOs, 2 Phatron filters - 24Db lowpass/highpass, 2 discrete Super-Transistor filters -24Db lowpass, 4 discrete VCAs, a discrete 10 input stereo mixer, a voltage controlled 14 stage phaser, a 10 band fixed / comb filter, V.C. balanced modulator, V.C. harmonic multiplier, a fully decked out sample and hold section, a Gentle Elctric 101 Pitch to Voltage and Envelope follower, a voltage controlled clock, etc.

2 rows of twelve modules are mounted on custom, 36" extruded aluminum rails. These sturdy assemblies are then mounted in a furniture grade, hardwood finished, laminate slant cabinet. The MC-24 features a 3 amp, ultra fast, linear power supply. The MC-24 uses the military grade potentiometers, front panels, knobs and mil-spec components found on all CMS/DiscreteSynthesizers.com instruments.

This is the ultimate in studio synthesizers. This is the ultimate in sound."

You can find details on the individual modules at the bottom of this post.


Module complement is as follows, beginning with bottom row:

9022 - Bus/Lag: utility module w/ CV & Gate bus inputs, lag processor
9016 - “Soma Module”: custom module including a Gentle Electric Model 101 Pitch to Voltage Converter; 2 inverters; 2 comparators
9001 - VCO
9001 - VCO
9002 - Dual VCO
9002 - Dual VCO
9002 - Dual VCO
9027 - VC Harmonic Multiplier/Balanced Modulator
9008 - Triple Envelope Generator
9008 - Triple Envelope Generator
9009 - Sample & Hold/Clock
9021 - Triple LFO

Top Row:

9000 - Mults/Attenuator/Voltage Source
9012 - Fixed Filter Bank
9015 - 10 Channel Discrete Mixer
9004 - Hi/Low Pass Filter
9005 - Low Pass Filter
9004 - Hi/Low Pass Filter
9005 - Low Pass Filter
9006 - Multimode Filter
9010 - 14 Stage Phase Shifter
9007 - Dual VCA
9007 - Dual VCA
9021 - Triple LFO

Individual module information:

9001 VCO:
FEATURES:
• EXCELLENT SONIC CHARACTERISTICS
• PRECISION TRACKING
• FULLY TEMPERATURE COMPENSATED
• INNOVATIVE "UNISYNC" FUNCTION
• UTILIZES A DISCRETE C.M.S. SUB-MODULE
• DISCRETE WAVE-SHAPING, PWM
• ON BOARD INTEGRATED WAVE MIXER / INVERTER
• MIXER / INVERTER CAN BE ISOLATED WITH EXTERNAL INPUTS
• LFO MODE WITH LED INDICATOR

THE C.M.S. 9001 OSCILLATOR MODULE IS A PRECISION VOLTAGE CONTROLLED ANALOG WAVEFORM GENERATOR. SINE, TRIANGLE, SAWTOOTH, AND VARIABLE WIDTH PULSE ARE AVAILABLE SIMULTANEOUSLY. IN ADDITION ALL 4 WAVEFORMS CAN BE MIXED IN ANY PROPORTION USING THE INTEGRATED 4 CHANNEL MIXER PROVIDING INVERTED AND NON INVERTED OUTPUTS. THIS MODULE IS PARTICULARLY RECOMMENDED FOR GENERATING UNUSUAL CONTROL WAVEFORMS AND COMPLEX AUDIO SIGNALS IN THE STUDIO. THE MIXER CAN ALSO BE ISOLATED FROM THE VCO BY SIMPLY PLUGGING INTO THE NORMALIZED INPUTS. THE MIXER ALSO PROCESSES CONTROL VOLTAGES AND CAN BE USED AS A STAND ALONE INVERTER
THE OUTPUT FREQUENCY RANGE IS FROM .03HZ TO 20,000HZ IN TWO RANGES WITHOUT EXTERNAL CONTROL VOLTAGES AND THE CONTROL VOLTAGE RANGE IS 10 OCTAVES ON EACH RANGE. AN EXTRA LARGE COMMUNICATION STYLE CONTROL KNOB LABELED "FIXED VOLTAGE" IS THE MAIN FREQUENCY CONTROL. A FINE TUNE ADJUSTMENT KNOB IS PROVIDED FOR ACCURATE TUNING AND PRECISE CONTROL OF PHASE RELATIONSHIPS. A FRONT PANEL CALIBRATED V/OCT INPUT ACCEPTS KEYBOARD CONTROL AND IS PRE-WIRED TO THE KEYBOARD BUSS. AC AND DC MODULATION WITH ATTENUATORS AS WELL AS VARIABLE PULSE WIDTH MODULATION IS PROVIDED. PULSE CAN BE MANUALLY VARIED FROM -5% TO +105%. AN OCTAVE SWITCH WITH FRONT PANEL CALIBRATION IS INCLUDED. AN LFO MODE SWITCH WITH A LED RATE MONITOR IS ALSO PROVIDED.
THE INTERNAL C.M.S. SUB-MODULE ASSURES PRECISION TRACKING AND STABILITY INDEPENDENT OF TEMPERATURE AND HUMIDITY CHANGES.
THE UNIQUE "UNISYNC" CIRCUIT ENABLES THE 9001 TO SYNC TO ANY EXTERNAL WAVEFORM. SYNC CAN BE ADDED TO GUITAR, VOICE ETC. ALSO VARIOUS SYNC EFFECTS CAN BE OBTAINED DEPENDING ON WHAT SHAPE IS FED INTO THE SYNC JACK.
THE LARGE, HIGH RESOLUTION, BLACK ANODIZED FRONT PANEL (10.3" X 3") IS LAVISHLY EQUIPPED WITH ERGONOMIC FLOWCHART GRAPHICS, DETAILED GRADUATIONS FOR PRECISE CONTROL, AND HIGH QUALITY COMPONENTS FOR RELIABLE, SERVICE FREE OPERATION.


9002 DUAL VCO:

FEATURES:
• EXCELLENT SONIC CHARACTERISTICS
• PRECISION TRACKING
• TEMPERATURE COMPENSATED - ULTRA LOW DRIFT
• UTILIZES PURELY DISCRETE C.M.S. SUB-MODULES
• DISCRETE WAVE-SHAPING, PWM
• UPPER VCO HAS SYNC FUNCTION BUILT IN
• LOWER VCO HAS LFO MODE WITH LED INDICATOR

THE C.M.S. 9002 DUAL OSCILLATOR MODULE IS A DUAL DISCRETE PRECISION VOLTAGE CONTROLLED ANALOG WAVEFORM GENERATOR. SAWTOOTH AND VARIABLE WIDTH PULSE ARE AVAILABLE SIMULTANEOUSLY.
THE OUTPUT FREQUENCY RANGE IS FROM 10HZ TO 20,000HZ WITHOUT EXTERNAL CONTROL VOLTAGES AND THE CONTROL VOLTAGE RANGE IS 10 OCTAVES ON EACH RANGE. FRONT PANEL CALIBRATED V/OCT INPUTS ACCEPT KEYBOARD CONTROL AND ARE PRE-WIRED TO THE KEYBOARD BUSS. MODULATION WITH ATTENUATORS AS WELL AS VARIABLE PULSE WIDTH MODULATION IS PROVIDED. THE FM MODULATION INPUTS AND THE PULSE WIDTH MODULATION INPUTS ARE ALL PRE-WIRED TO THE OPPOSING VCO OUTPUTS FOR DRASTIC CROSS MODULATION EFFECTS. PULSE CAN BE MANUALLY VARIED FROM -5% TO +105%. OSCILLATOR "A" HAS A SWITCH THAT SYNCS IT TO OSCILLATOR "B". OSCILLATOR "B" HAS A LFO MODE SWITCH. LED MONITORS ARE ALSO PROVIDED.
THIS MODULE USES 2 RECENTLY DEVELOPED C.M.S. 4047 DISCRETE SUB-MODULES TO ASSURE PROPER SPECTRAL DENSITY, RICH HARMONIC CONTENT AS WELL AS PRECISION TRACKING AND STABILITY INDEPENDENT OF TEMPERATURE AND HUMIDITY CHANGES.
THE LARGE, HIGH RESOLUTION, BLACK ANODIZED FRONT PANEL (10.3" X 3") IS LAVISHLY EQUIPPED WITH ERGONOMIC FLOWCHART GRAPHICS, DETAILED GRADUATIONS FOR PRECISE CONTROL, AND HIGH QUALITY COMPONENTS FOR RELIABLE, SERVICE FREE OPERATION.


9004 VCF:

FEATURES:
• THE PHATRON LADDER FILTER
• RESONANCE FUNCTION EXHIBITS A DISTINCTIVE MINIMOOG-LIKE BRILLIANCE
• UNIQUE DESIGN RESULTS IN NO LOSS OF GAIN AS RESONANCE IS INCREASED
• UTILIZES A COPPER SHIELDED, C.M.S. SUB-MODULE FOR LOW NOISE OPERATION
• LOW D.C. OFFSET AND CONTROL VOLTAGE FEEDTHROUGH FOR "THUMP FREE" OPERATION
• BI-MODE DESIGN ENABLES SIMULTANEOUS LOWPASS, HIGHPASS
• COUPLER FUNCTION LINKS 2 MODULES FOR 24Db BANDPASS AND NOTCH (PHASING)
• 4 ATTENUATED FM INPUTS
• 4 INPUT AUDIO MIXER
• ACCURATE EXPONENTIAL FREQUENCY SCALE

C.M.S. MODULE 9004 IS A HIGH PERFORMANCE VOLTAGE CONTROLLED FOUR-POLE DUAL MODE FILTER DESIGNED FOR SUBTRACTIVE SYNTHESIS AND HARMONIC ENHANCEMENT IN THE C.M.S. MODULAR SYSTEM. EXTENSIVE C.M.S. RESEARCH WITH VINTAGE SPECIMENS AND YEARS OF EXPERIMENTATION WITH COUNTLESS VARIATIONS ON THE MOOG TRANSISTOR LADDER HAVE RESULTED IN A FILTER EXHIBITING A REMARKABLE VINTAGE SOUND. 24Db HIGHPASS WITH RESONANCE AND 24Db LOWPASS WITH RESONANCE ARE SIMULTANEOUSLY AVAILABLE. AN INNOVATIVE DESIGN ENABLES RESONANCE TO BE ENGAGED WITHOUT SACRIFICING LOW END OR VOLUME, A FIRST FOR THIS TYPE OF FILTER ARCHITECTURE. ALSO THIS IS THE FIRST FILTER MADE THAT EXTRACTS A HIGHPASS RESPONSE FROM A MOOG STYLE TRANSISTOR LADDER, PRODUCING A VERY COLORFUL, BRILLIANT RESONANCE.
REMARKABLE RESONANT TEXTURES CAN BE REALIZED WHEN A 9004 IS COUPLED WITH A 9005 TO ENABLE 24Db BANDPASS AND 24Db NOTCH RESPONSES WITH SEPARATE RESONANCE SETTINGS ON EACH SLOPE. WHEN A COUPLER SWITCH IS ENGAGED ON THE 9004 MODULE, THE 9004 MAIN CONTROL ADJUSTS THE CENTER FREQUENCY AND THE 9005 MAIN CONTROL ADJUSTS THE BANDWIDTH . BANDWIDTH AND CENTER FREQUENCY CAN ALSO BE VOLTAGE CONTROLLED. THESE RESPONSES CONTRIBUTE GREATLY IN AUDIBLY DEFINING THE C.M.S. MODULAR SYSTEMS UNIQUE SOUND.
VOLTAGE CONTROL OF FREQUENCY IS A STANDARD 1V PER OCTAVE WITH A FRONT PANEL CALIBRATION PORT. THE CONTROL INPUT MIXER HAS 4 INPUTS, THE RIGHT MOST BEING PRE-WIRED TO THE KEYBOARD CV BUSS. A 4 CHANNEL AUDIO MIXER HAS BEEN PROVIDED AT THE INPUT OF THE FILTER. THE FILTER WILL PRODUCE AN ULTRA PURE SINE WAVE WHEN SET TO SELF OSCILLATION AND WILL TRACK THE KEYBOARD ACCURATELY REGARDLESS OF TEMPERATURE OR HUMIDITY.


9005 VCF:

FEATURES:
• THE "SUPER-TRANSISTOR" FILTER
• DISCRETE, VERY LOW NOISE, EXCEPTIONAL CLARITY
• UTILIZES A COPPER SHIELDED, C.M.S. SUB-MODULE FOR LOW NOISE OPERATION
• LOW D.C. OFFSET AND CV FEEDTHROUGH FOR "THUMP FREE" OPERATION
• COUPLER LINKS 2 MODULES FOR 24X24Db BANDPASS AND NOTCH (PHASING)
• ERGONOMIC, FLOWCHART STYLE GRAPHICS
• 4 ATTENUATED FM INPUTS
• 4 INPUT AUDIO MIXER
• ACCURATE EXPONENTIAL FREQUENCY SCALE

C.M.S. MODULE 9005 IS A PURELY DISCRETE HIGH PERFORMANCE VOLTAGE CONTROLLED FOUR-POLE FILTER DESIGNED FOR SUBTRACTIVE SYNTHESIS AND HARMONIC ENHANCEMENT IN THE C.M.S. MODULAR SYSTEM. THIS MODULE UTILIZES C.M.S.'S NEW 4083 DISCRETE HIGH FIDELITY SUBMODULE WITH DISTINCTIVELY UNIQUE CHARACTERISTICS: WARM AND POWERFUL, BRIGHT AND BUZZY WITH RESONANCE, BEAUTIFUL DISTORTION WHEN OVERLOADED. EXTENSIVE C.M.S. RESEARCH WITH VINTAGE SPECIMENS AND YEARS OF EXPERIMENTATION WITH COUNTLESS VARIATIONS ON THE MOOG TRANSISTOR LADDER HAVE RESULTED IN A FILTER EXHIBITING A REMARKABLE VINTAGE SOUND. THIS MODULE IS NOT A COPY OF THE MOOG 904. THIS DISCRETE MODULE HAS A MAXIMUM OUTPUT VOLTAGE OF 26V PP WHERE THE MOOG 904 WAS 4V PP.
REMARKABLE RESONANT TEXTURES CAN BE REALIZED WHEN A 9005 IS COUPLED WITH A 9004 TO ENABLE 24Db X 24Db BANDPASS AND 24Db X 24Db NOTCH RESPONSES WITH SEPARATE RESONANCE SETTINGS ON EACH SLOPE. WHEN A COUPLER SWITCH IS ENGAGED ON THE 9004 MODULE, THE 9004 MAIN CONTROL ADJUSTS THE CENTER FREQUENCY AND THE 9005 MAIN CONTROL ADJUSTS THE BANDWIDTH . BANDWIDTH AND CENTER FREQUENCY CAN ALSO BE VOLTAGE CONTROLLED. THESE RESPONSES CONTRIBUTE GREATLY IN AUDIBLY DEFINING THE C.M.S. MODULAR SYSTEMS UNIQUE SOUND.
VOLTAGE CONTROL OF FREQUENCY IS A STANDARD 1V PER OCTAVE WITH A FRONT PANEL CALIBRATION PORT. THE CONTROL INPUT MIXER HAS 4 INPUTS, THE RIGHT MOST BEING PRE-WIRED TO THE KEYBOARD CV BUSS. A 4 CHANNEL AUDIO MIXER HAS BEEN PROVIDED AT THE INPUT OF THE FILTER. THE FILTER WILL PRODUCE AN ULTRA PURE SINE WAVE WHEN SET TO SELF OSCILLATION AND WILL TRACK THE KEYBOARD ACCURATELY REGARDLESS OF TEMPERATURE OR HUMIDITY.


9007 DUAL VCA:

VCA FEATURES:
• PURELY DISCRETE DIFFERENTIAL TRANSISTOR CIRCUIT - NO CHIPS!
• LOW NOISE , LOW DISTORTION AND HIGH SLEW RATE
• LED CONTROL MONITOR ASSISTS IN MIXING CONTROL SIGNALS
• ATTENUATED INVERTING AND NON INVERTING INPUTS
• ADDITIONAL 1/4" 2V P-P OUTPUT
• LINEAR CONTROL INVERTER BUILT IN
• LOW D.C. OFFSET AND CV FEEDTHROUGH FOR "THUMP FREE" OPERATION
• SENSITIVE EXPONENTIAL CONTROL PRODUCES PERCUSSIVE EFFECTS
• ACCURATELY PROCESSES CONTROL VOLTAGES

WE'RE TAKING THINGS UP ONE MORE NOTCH, HERE AT C.M.S. WITH THE INTRODUCTION OF OUR NEW LINE OF PURELY DISCRETE SYNTHESIZER MODULES.
C.M.S. MODULE 9007 CONTAINS TWO PROFESSIONAL VOLTAGE CONTROLLED AMPLIFIERS DESIGNED FOR USE IN THE C.M.S. MODULAR SYSTEM. THESE UNITS EXHIBIT LOW DISTORTION AND FULL FREQUENCY RESPONSE FROM DC CONTROL VOLTAGES TO 40KHz. THE 9007'S VOLTAGE CONTROLLED AMPLIFIERS UTILIZE C.M.S.'S NEW 4088 DISCRETE HIGH FIDELITY SUBMODULES RESULTING IN AN EXTREMELY QUIET, RESPONSIVE AND TRANSPARENT VCA. OUR EXTENSIVE RESEARCH INTO DISCRETE AMPLIFIER DESIGNS SUCH AS API, NEVE, MOOG AND JENSEN RESULTED IN A NEW LINE OF AURALLY DISTINCTIVE DISCRETE SUBMODULES.
EACH VCA HAS TWO ATTENUATED INPUTS, INVERTING AND NON INVERTING, THAT WILL ACCEPT BOTH AUDIO AND CONTROL VOLTAGES FOR AMPLITUDE PROCESSING. THE VCA ALSO HAS SEPARATE, VARIABLE LINEAR AND EXPONENTIAL CONTROL INPUTS AVAILABLE SIMULTANEOUSLY. A LED CONTROL MONITOR PROVIDES VISUAL FEEDBACK ON EACH CONTROL LEVEL THIS ENABLES THE PRECISE MIXING OF 2 ENVELOPES AND IS ESPECIALLY USEFUL FOR PERCUSSIVE, PUNCHY ENVELOPES. AN "INITIAL GAIN" CONTROL ADJUSTS THE AMPLITUDE DIRECTLY FROM THE FRONT PANEL. THE UPPER VCA HAS AN INTEGRATED INVERTER SWITCH THAT INVERTS THE LINEAR CONTROL. EACH VCA IS SUPPLIED WITH TWO 1/8TH INCH HIGH LEVEL OUTS AND ONE 1/4 INCH LINE LEVEL OUT.


9008 TRIPLE EG:

FEATURES:
• 3 SEPARATE ENVELOPE GENERATORS IN ONE MODULE
• USES DISCRETE, HIGH SPEED, C.M.S. SUB-MODULES
• ADSR'S FEATURE ULTRA FAST RESPONSE - INSURES POWERFUL -
• NATURAL PERCUSSIVE ENVELOPES
• ADSR'S HAVE RANGE SWITCH FOR EXTRA HIGH SPEED MODE
• EACH ADSR HAS 2 POSITIVE AND 2 NEGATIVE OUTPUTS
• LED MONITORS ON ALL 3 GENERATOR OUTPUTS
• MANUAL START PUSH-BUTTONS ON ALL 3 GENERATORS

THE C.M.S. 9008 TRIPLE ENVELOPE GENERATOR MODULE FEATURES HIGH SPEED FET SWITCHING CIRCUITRY TO PRODUCE EXTREMELY FAST RESPONSE TIMES TO FACILITATE PERCUSSIVE ENVELOPES FOUND IN NATURE. UNFORTUNATELY, MANY SYNTHESIZER MANUFACTURERS HAVE UNDERESTIMATED THE IMPORTANCE HIGH SPEED ENVELOPES HAVE IN DEFINING THE SOUND OF THE INSTRUMENT. AT C.M.S. EXTENSIVE HANDS ON RESEARCH HAS RESULTED IN A VERY FAST, RELIABLE ENVELOPE MODULE.
THERE ARE 2 A.D.S.R. GENERATORS AND ONE A.R. GENERATOR. EACH A.D.S.R. FEATURES A RANGE SWITCH EXTENDING THE RELEASE TIMES X2. BOTH A.D.S.R. GENERATORS ARE PROVIDED WITH INVERTED OUTPUTS. ALL GENERATORS FEATURE LED MONITORS AND MANUAL TRIGGERING PUSH-BUTTONS. THE NEWLY UPDATED AR GENERATOR FEATURES AN EXTENDED ATTACK AND RELEASE TIME RANGE.
SIMPLE, ATTRACTIVE FRONT PANEL FACILITATES EASY COMPREHENSION OF FUNCTIONS. STURDY BLACK ANODIZED CONSTRUCTION, SUB-MODULAR DESIGN FOR EASY SERVICE. HIGH QUALITY COMPONENTS ASSURE DECADES OF RELIABLE SERVICE.


9009 S&H/CLOCK:

FEATURES:
• EXTERNAL SIGNAL AND TRIGGER / GATE INPUTS
• HIGH SPEED OPERATION OF S/H FOR AUDIO PROCESSING
• INTEGRATED VOLTAGE CONTROLLED CLOCK
• V.C. CLOCK RANGE SWITCH ENABLES AUDIO FREQUENCY OPERATION
• SYNC INPUT ON V.C. CLOCK ENABLES AUDIO SYNC MODE
• V.C. CLOCK HAS THREE OUTPUTS: RAMP, SQUARE AND PULSE
• INTEGRATED DISCRETE SEMICONDUCTOR NOISE SOURCE
• SLOW RANDOM GENERATOR

THE C.M.S. 9009 SAMPLE & HOLD MODULE IS A FUNCTIONAL CIRCUIT PACKAGE DESIGNED FOR USE IN THE C.M.S. 9000 MODULAR SYSTEM. THE MODULE CONTAINS A SAMPLE AND HOLD CIRCUIT, A NOISE GENERATOR AND A VOLTAGE CONTROLLED CLOCK. THE 9009 IS USUALLY USED TO GENERATE RANDOM OR PERIODIC STAIRCASE WAVEFORMS FOR COMPLEX MODULATION OF VCO'S, VCF'S, ETC.

A SAMPLE AND HOLD CIRCUIT HAS A SIGNAL INPUT, A SIGNAL OUTPUT AND A SAMPLE COMMAND INPUT. WHEN A PULSE IS APPLIED TO THE SAMPLE COMMAND INPUT, THE OUTPUT SIGNAL VOLTAGE ASSUMES THE SAME VALUE AS THE INPUT SIGNAL VOLTAGE. AFTER THE SAMPLE COMMAND PULSE, THE OUTPUT SIGNAL VOLTAGE WILL HOLD AT THE SAME LEVEL UNTIL ANOTHER PULSE IS APPLIED.

THE 9009 SAMPLE & HOLD CIRCUIT HAS 2 SIGNAL INPUTS. SIGNAL INPUT A IS THE EXTERNAL PORT AND HAS A JACK AND ATTENUATOR. SIGNAL INPUT B IS PREWIRED TO THE WHITE NOISE SOURCE AND ALSO HAS ITS OWN ATTENUATOR. THERE ARE 3 SAMPLE COMMAND INPUTS: INPUT A IS THE EXTERNAL PORT AND HAS A JACK AND PULSE/GATE INPUT SWITCH. INPUT B IS PREWIRED TO THE VOLTAGE CONTROLLED CLOCK PULSE AND HAS ITS OWN ENABLE SWITCH. INPUT C IS THE MANUAL TRIGGER PUSH-BUTTON. THERE ARE 2 SIGNAL OUTPUTS PROVIDED. PROCESSING VOLTAGE RANGE IS BIDIRECTIONAL AT +/-10V (20V PP). THE 9009 SAMPLE & HOLD CIRCUIT IS BUILT FOR HIGH SPEED OPERATION. THE SAMPLE COMMAND PULSE CAN BE CLOCKED AT AUDIO FREQUENCY FOR COMPLEX EFFECTS. ALSO THE SAMPLE & HOLD CIRCUIT IS CAPABLE OF PROCESSING AUDIO FOR GRANULAR DIGITAL EFFECTS.
THE VOLTAGE CONTROLLED CLOCK IS AN EXPONENTIALLY CONTROLLED VOLTAGE CONTROLLED OSCILLATOR WITH RAMP, PULSE AND SQUARE WAVE OUTPUTS. IT HAS A MAIN FREQUENCY VERNIER AND A RANGE SWITCH PERMITTING AUDIO FREQUENCY OPERATION AS WELL AS LFO MODE. IT HAS 1 CONTROL INPUT WITH ASSOCIATED JACK AND ATTENUATOR. ALSO, THERE IS AN EXTERNAL SYNC THAT FUNCTIONS AS A RESTART FOR THE CLOCK. THE SYNC FUNCTIONS IN THE AUDIO FREQUENCY RANGE PERMITTING THE 9009 VOLTAGE CONTROLLED CLOCK TO BE USED AS AN ADDITIONAL SYNC WAVEFORM GENERATOR WHEN SYNCHRONIZED TO AN EXTERNAL C.M.S. VCO PULSE WAVE.
THE NOISE GENERATOR HAS THREE INDIVIDUAL OUTPUTS: WHITE, PINK, AND SLOW RANDOM.


9010 14 STAGE PAHSE SHIFTER:

FEATURES:
• VOLTAGE CONTROLLED 14 STAGE PHASE SHIFTER CIRCUIT
• SERVO COMPRESSION / EXPANSION CIRCUIT REDUCES NOISE
• ACCURATE 1V/OCT CONTROL PRODUCES TUNED EFFECTS
• CAN BE USED AS A SCALABLE COMB FILTER
• FULL RESONANCE CONTROL INCLUDING SELF OSCILLATION
• PHASE SWITCH FOR ADDITIONAL COMBINATIONS
• 3 DIFFERENT TYPES OF OUTPUTS: SUM, DIFFERENCE AND WET
• INTEGRATED VOLTAGE CONTROLLED LFO

THE C.M.S. 9010 VOLTAGE CONTROLLED PHASE SHIFTER UTILIZES A DISCRETE 14 STAGE VOLTAGE CONTROLLED ALL PASS PHASE SHIFT NETWORK TO ACHIEVE DRAMATIC RESONANT PHASING EFFECTS, COMB FILTERING, HASS EFFECTS, TUNED NOISE AND CHORUSING.
MULTIPLE MODULATION INPUTS ARE AVAILABLE WITH THEIR RESPECTIVE ATTENUATORS INCLUDING AN ACCURATE 1V PER OCTAVE INPUT NORMALLED TO THE KEYBOARD BUSS. STARTLING TEXTURES ARE OBTAINED WHEN THE 9010 IS USED AS A RESONATOR THAT TRACKS THE KEYBOARD. THIS IS ALSO VERY EFFECTIVE FOR TUNED NOISE ETC. THERE IS ONE AUDIO INPUT JACK WITH ATTENUATOR. THE 3 MULTIPLE OUTPUTS COUPLED WITH THE PHASE SWITCH YIELDS NUMEROUS TONAL VARIATIONS. THE 9010 HAS A RESONANCE CONTROL AND WILL SELF OSCILLATE WHEN SET TO MAXIMUM. A SPECIAL INTEGRATED SERVO EXPANDER / COMPRESSOR CIRCUIT KEEPS NOISE AT A MINIMUM WHILE MAINTAINING DYNAMIC RANGE.
THE INTEGRATED VOLTAGE CONTROLLED LFO HAS DUAL SINE OUTPUTS 180 DEGREES OUT OF PHASE, ONE OF WHICH IS NORMALLED TO ONE OF THE MODULATION INPUTS OF THE PHASE SHIFT NETWORK. THE LFO ALSO HAS AN EXTERNAL VOLTAGE CONTROL INPUT JACK WITH IT'S RESPECTIVE ATTENUATOR. THE VOLTAGE CONTROLLED LFO IS ALSO EQUIPPED WITH A FREQUENCY RANGE SWITCH.


9012 FIXED FILTER BANK:

FEATURES:
• USED FOR FORMANT FILTERING, COMB FILTERING AND EQUALIZATION
• ENABLES HUNDREDS OF DRASTIC TONAL VARIATIONS IN JUST ONE PATCH
• RESONATORS SIMULATE NATURAL ENCLOSURES OR INSTRUMENT STRUCTURES
• LARGE AMOUNTS OF BASS CAN BE ADDED TO THIN SOUNDS
• GREAT FOR CONDITIONING EXTERNAL SIGNALS BEFORE FILTERING ETC.
• INDIVIDUAL OUTPUTS ARE PROVIDED FOR EACH BAND

IF YOU ARE LOOKING FOR A UNIQUE AND POWERFUL PALETTE OF TONE COLORS, OR LOOKING TO GET A MORE ORGANIC SOUND, WE AT C.M.S. BELIEVE A RESONANT FIXED FILTER BANK IS A CRUCIAL NECESSITY. THE NEW 9012 FIXED FILTER BANK MODULE FROM C.M.S. IS A HIGH PERFORMANCE CIRCUIT MAINLY USED FOR WAVESHAPING, FORMANT MANIPULATION, COMB FILTERING AS WELL AS EQUALIZATION. MANY UNIQUE AND POWERFUL TEXTURES CAN BE OBTAINED BY PLACING THE 9012D AT VARIOUS POINTS IN A SIGNAL FLOW.
ENHANCING THE SIGNAL HARMONICALLY BEFORE VOLTAGE CONTROLLED FILTERING CAN PRODUCE SOME AMAZINGLY RICH AND VARIED TONE COLORS. CONVERSELY, HARMONIC ENHANCEMENT AFTER FILTERING ALSO HAS NUMEROUS TONAL POSSIBILITIES. THE SAME CAN BE SAID FOR RING MODULATORS, PHASE SHIFTERS ETC. MAKING THE POSSIBILITIES ENDLESS. THE 9012 IS ALSO USEFUL AS AN OUTPUT SIGNAL CONDITIONER OR GRAPHIC EQ. THE SEPARATE OUTPUTS ARE USEFUL FOR SELECTIVE FILTERING OR SPLITTING DIFFERENT BANDS INTO SEPARATE STEREO FIELDS. THE C.M.S. 9015 10 INPUT STEREO MIXER IS DESIGNED WITH THIS PURPOSE IN MIND (SEE NEXT PAGE).
THE 9012 HAS 2 MODES. WHEN IN FIXED FILTER MODE THE UNIT OPERATION IS SIMILAR TO A GRAPHIC EQUALIZER. ALL 10 BANDS HAVING THE SAME PHASE RELATIONSHIP. WHEN THE MODE SWITCH IS SET TO "COMB FILTER" EVERY OTHER FREQUENCY BAND IS INVERTED. THIS CONFIGURATION PRODUCES EVENLY SPACED, NOTCHES IN THE FREQUENCY SPECTRUM, HENCE THE NAME - COMB FILTER. THIS EFFECT PRODUCES SOME VERY UNIQUE TONES.
IN ADDITION, THERE IS A MIX CONTROL PROVIDED THAT VARIES THE OUTPUT FROM "DRY TO "WET" ENABLING EVEN MORE PHASE COMBINATIONS DUE TO THE INTERACTION BETWEEN THE ORIGINAL SIGNAL AND THE FILTERED SIGNAL.
PLEASE NOTE: DUE TO THE COMPLEX NATURE OF THIS MODULE, IT IS NOT PURELY DISCRETE. IT IS A HYBRID MEANING IT USES A COMBINATION OF MATCHED TRANSISTORS AND HIGH SLEW RATE, LOW NOISE INTEGRATED CIRCUITS.


9015 10 CHANNEL MIXER:

FEATURES:
• USES THE NEW HIGH FIDELITY 4080 OP-AMPS FROM C.M.S.
• USUALLY USED AS SUMMER FOR NUMEROUS VCOS
• EXCEPTIONAL SONIC CHARACTERISTICS
• CAN BE USED AS A STANDARD STEREO MIXER
• CAN BE USED AS 2 SEPARATE MIXERS
• USED WITH 9012D FOR PANNING EACH BAND IN THE STEREO FIELD

AT C.M.S., WE BELIEVE WHEN YOU ARE PUTTING TOGETHER A DISCRETE SYNTHESIZER, AND YOU WANT A TRULY MASSIVE OR ORCHESTRAL SOUND, GO FOR NUMEROUS VCOs. THE SOUND OF 8-10 SLIGHTLY DETUNED DISCRETE VCOs GOING THROUGH A DISCRETE FILTER AND VCA SOUNDS TRULY AMAZING! TO KEEP THE SIGNAL PATH PURE, YOU NEED A HIGH PERFORMANCE DISCRETE MIXER.
THE C.M.S. 9015 IS A 10 INPUT PURELY DISCRETE HIGH FIDELITY STEREO MIXER DESIGNED FOR USE IN THE C.M.S. 9000 SERIES MODULAR SYNTHESIZER SYSTEM. THIS MODULE IS USUALLY USED FOR SUMMING MULTIPLE OSCILLATOR OUTPUTS. SPLITTING OR PANNING VCOs INTO A STEREO SIGNAL PATH FOR DUAL FILTERING, AMPLITUDE MODULATION ETC. THIS UNIT CAN ALSO BE USED AS 2 SEPARATE MIXERS. WHEN USED IN CONJUNCTION WITH THE SEPARATE OUTPUTS OF A 9012 MODULE, STEREO PANNING OF EACH OF THE 10 FREQUENCY BANDS OF THE 9012 FILTER BANK IS POSSIBLE LEADING TO SOME INTERESTING FREQUENCY DEPENDENT STEREO EFFECTS SUCH AS STEREO COMB FILTERING, RESONATING ETC.
THIS UNIT UTILIZES C.M.S.'S NEW 4080 HIGH FIDELITY DISCRETE OPERATIONAL AMPLIFIERS TO ENSURE AN ACCURATE AND RICH SOUNDING MIX. THE UNIT ALSO FUNCTIONS AS 2 SEPARATE AUDIO MIXERS. EACH INPUT HAS A RESPECTIVE VOLUME AND PAN POT. EACH CHANNEL HAS DUAL OUTPUTS.
EACH OUTPUT CHANNEL IS PROVIDED WITH LED SIGNAL AND OVERLOAD INDICATORS. A GREEN LED GLOWING INDICATES THAT MINIMAL SIGNAL LEVEL HAS BEEN ACHIEVED. A RED LED IS ENERGIZED WHEN AN OVERLOAD CONDITION IS PRESENT.


9027 HARMONIC MULTIPLIER/BALANCED MODULATOR:

VOLTAGE CONTROLLED HARMONIC MULTIPLIER
FEATURES:
• ADDS MULTIPLE HARMONIC TEXTURES TO ANY SLOPED OR CURVED WAVEFORM
• CAN BE USED AS A VOLTAGE CONTROLLED DISTORTION DEVICE
• COMPLEX TEXTURES GENERATED WHEN USED AFTER FILTERING
• DUAL INPUTS ALLOW FOR COMPLEX BALANCED MODULATOR EFFECTS

VOLTAGE CONTROLLED BALANCED MODULATOR
FEATURES:
• USES DISCRETE TRANSISTOR TRANSCONDUCTANCE PRINCIPAL - HIGH SPEED
• LOW NOISE , LOW DISTORTION AND HIGH SLEW RATE
• SELECTABLE COUPLING ON SIGNAL INPUT
• VOLTAGE CONTROLLED SELECTION OF CARRIER SOURCE (CROSSFADE)
• LED INDICATOR OF CARRIER SOURCE
• CROSSFADE RUNS AT AUDIO FREQUENCY FOR COMPLEX MODULATION EFFECTS
• CAN BE USED AS A QUAD INPUT BALANCED MODULATOR
• ALL INPUTS FUNCTION AT AUDIO FREQUENCY - NO OPTOISOLATORS
• CAN BE USED AS A VCA

THE C.M.S. 9027 MODULE CONTAINS TWO INNOVATIVE AND DISTINCTIVLY COMPLEX WAVEFORM PROCESSING CIRCUITS
THE VOLTAGE CONTROLLED HARMONIC MULTIPLIER IS DESIGNED FOR ADDING MULTIPLE HARMONIC OVERTONES TO SMOOTH OR SLOPED WAVEFORMS AS WELL AS COMPLEX WAVEFORMS. THIS UNIT IS ALSO VERY USEFUL IN PRE VCF AND POST VCF APPLICATIONS. SEPARATE POSITIVE AND NEGATIVE INPUTS YIELD DIFFERENT RESPONSES. WHEN 2 VCOS ARE FED INTO EACH INPUT, THE CIRCUIT PRODUCES VOLTAGE CONTROLLED COMPLEX RING MODULATOR TYPE WAVEFORMS. THE UNIT CAN ALSO BE USED FOR VOLTAGE CONTROLLED HARMONIC DISTORTION ON EXTERNAL NATURAL SOURCES. TWO ATTENUATED MODULATION CONTROL INPUTS ARE PROVIDED.
THE BALANCED MODULATOR IS A HIGH ACCURACY, DISCRETE MULTIPLIER EMPLOYING DOUBLE WILSON CURRENT MIRRORS COUPLED WITH A HIGH SPEED VOLTAGE CONTROLLED MIXER FOR SELECTION OF THE CARRIER SOURCE OF THE MULTIPLIER. IT HAS 4 ATTENUATED INPUTS: SIGNAL, CARRIER A, CARRIER B, AND MODULATION. THIS UNIT CAN FUNCTION AS A STANDARD BALANCED MODULATOR BUT ALSO HAS SOME EXTREMELY INNOVATIVE OPERATING MODES: 1 - WHEN 2 SEPARATE VCOS ARE FED INTO EACH CARRIER INPUT, AMAZING MORPHING TEXTURES ARE POSSIBLE THROUGH VOLTAGE CONTROL OF THE MODULATION INPUT. 2 - 10 V D.C. IS NORMALLED TO THE CARRIER A INPUT. IN THIS MODE, THE CARRIER WAVEFORM IS PATCHED INTO THE CARRIER B INPUT, WHEN THE MODULATION VOLTAGE IS VARIED, THE RING MODULATION AMOUNT WILL VARY FROM DRY TO FULL RING MODULATION. 3 - THE MODULATION INPUT IS CAPABLE OF RUNNING AT AUDIO FREQUENCY FOR VERY COMPLEX TONALITIES. 4 - CARRIER A IS D.C. COUPLED TO FACILITATE THE STANDARD VCA FUNCTION. CARRIER INPUT B IS A.C. COUPLED AS AN ALTERNATIVE. 5 - THE SIGNAL INPUT IS PROVIDED WITH A SWITCH PROVIDING AC OR DC COUPLING . THIS PROVIDES MORE OPTIONS ON PROCESSING AUDIO SIGNALS AS WELL AS PROVIDING AN OUTPUT FOR THE VOLTAGE CONTROLLED MIXER WHEN 10V DC IS APPLIED.
PLEASE NOTE: DUE TO THE COMPLEX NATURE OF THIS MODULE, IT IS NOT PURELY DISCRETE. IT IS A HYBRID, MEANING IT USES A COMBINATION OF MATCHED TRANSISTORS AND INTEGRATED CIRCUITS (CHIPS). ALL PROCESSING SECTIONS INCLUDING ALL TRANSCONDUCTANCE STAGES USE OUR SPECIALLY MATCHED DISCRETE TRANSISTORS. LEVEL BOOSTING IS PERFORMED BY HIGH SLEW RATE, LOW NOISE INTEGRATED CIRCUITS.

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