What’s the story behind one of the greatest sounding synths of all times?
The Synthex was not the first synthesizer project created by Mario Maggi.
Guitar Synth Modular
In 1974, Mario realized that a programmable synthesizer was feasible even if low cost microprocessors were not yet available. For this reason he developed a discrete logic board to obtain all the required functions and an optical sensors keyboard to avoid using electromechanical contacts.
The totally programmable synthesizer named “Memory Controlled Synthesizer 70″ – MCS 70 was presented at the Frankfurter MusikMesse in 1978 featuring unprecedented specifications at the time, being one of the very first fully programmable monophonic synthesizers.
MCS 70 – SPECIFICATIONS
- VCO 1, VCO 2, VCO 3 – Voltage Controlled Oscillators
- Frequency range:
- 0.1Hz to 20KHz
- Sine, Triangle, Chopper triangle, Ramp, Square,
Variable Pulse Width (5% to 95%)
- Linear FM:
- VCO 1, VCO 2 modulated by VCO 3
- Linear AM:
- VCO 1 modulated by VCO 2
- Octave: 6 position range selector
- Transpose: 13 position semitone selector
- Master Tune: up or down 2½ semitones
- Fine Tune: up or down 1¼ semitones
- LFO – Low Frequency Oscillator
- Frequency range:
- 1 cycle in 33 seconds to 300Hz
- Sine, Triangle, Ramp, Variable Pulse Width (5% to 95%)
- Phase Synchronization:
- Waveforms may be synchronized with the keyboard Trigger
- White or Pink Noise Generator. Random voltage for control applications.
- VCF 1 – Voltage Controlled Filter
- Frequency range: 20Hz to 20Khz
- Switchable High-Pass or Low-Pass, variable Resonance,
24 dB/oct slope
- VCF 2 – Voltage Controlled Filter
- As VCF 1 but Low-Pass only
- In parallel with VCF 1:
- forms a variable width Band-Reject Filter (VCF 1 = High-Pass)
- In series with VCF 1:
- a variable width Band-Pass Filter (VCF 1 = High-Pass)
- a Low-Pass Filter with 48 dB/oct slope (VCF 1 = Low-Pass)
- ENV 1, ENV 2 – 2 Envelope Generators
- Attack time, Decay time, Sustain level, Release time
- Time controls are variable from 1msec to 50sec
- VCA – Voltage Controlled Amplifier
- 2 separate sections (one for each Filter) with parallel controls
- Control mode:
- Linear or Exponential
- CV 1 – Control Voltage Routing
- Routes LFO control voltage to:
- VCO 1, VCO 2, VCO 3, (simultaneously)
- VCF 1
- VCF 2
- CV 2 – Control Voltage Routing
- Routes one of the three control voltages, LFO, VCO 2, Random voltage to:
- VCO 1
- VCO 2
- VCO 3
- VCF 1
- VCF 2
- Indipendent glide time controls for STACCATO and LEGATO modes.
- 30 kg (66 lbs)
- 75cm wide, 45cm deep, 18cm height
- (29½” x 17½” x 7″)
- 117-220 VAC 50-60Hz – 25W
All sounds of the record were entirely created using one MCS 70 programmed by Mario Maggi.
During his staying in Paris, Mario heard the news about the SCI Prophet 5 arriving on the market, and so he stopped the production of the MCS 70 to start the development of a polyphonic synthesizer.
After three years of R&D a polyphonic prototype was ready for demonstrations.
Convinced by a friend who was going to Castelfidardo to have an instrument being serviced, Mario brought the Synthex with him for a last attempt with a company that was mainly producing electronic organs.
Fortunately, the company’s music consultant, Mr. Paolo Ciompi, that day was present and he was immediately charged to test the Synthex prototype.
The same day, having reported positive evaluation the company’s CEO, Mr. Piero Crucianelli, proposed to show the Synthex prototype at the incoming MusikMesse in Frankfurt.
After two months, the Synthex with improved features and renewed panel arrived at the MusikMesse, where its future demonstrator Paul Wiffen appreciated its very stable oscillators and several innovative modules: Chorus, Sequencer and Multimode Filter.
Back from Frankfurt, Mario was asked to supervise the production of the Synthex and to train technicians in performing the circuit boards testing and troubleshooting.
SYNTHEX VOICE BOARDS
After the Synthex introduction on the market it took a while for the instrument to gain popularity outside Italy.
When talented artists started featuring the Synthex in concerts and compositions the popularity of the instrument began to spread.
When also magazines showed the Synthex on their covers, the instrument became more known and desirable to a larger number of musicians.
Keith Emerson for Electronics & Music Maker
Nick Rhodes (DuranDuran)
The Synthex was produced during the period 1981-1985, with 1850 units built.
The last Synthex was assembled upon explicit request for Stevie Wonder, after a demonstration meeting with Paul Wiffen.
The full story can be read in Paul’s article on Sound on Sound here.
At the end of the 90s, some friends interrogated Mario about the possibility to create a new Synthex.
Mario embraced a development based on the new technologies that became available, allowing him to unleash previously unthinkable power.
Synthenoxe Part 1.0
Beethoven Sonata No. 8 2nd Movement
LASER ARP 33:30 / 1:28:00