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Elka Synthex

 

 

 

elka synthex

info Country: Italy
Weight: 30 Kg
Dimensions: 1095 x 500 x 165 mm
audio demo trend price : 6000€
manual schematic demo comments

Elka Synthex (1981)

 

Impressive analog cult poly synthesizer designed by Italian organ societies Elka & Orla.

synthesizer Elka
left board

info KEYBOARD 61 keys (no velocity) optional pair of legs.
The main panel features 36 knobs, 84 buttons, 6 levers and a joystick for pitch bending and modulation.

Back panel terminal connectors:
- tape interface
- sequencer sync input
- stereo analog out
- expression pedal input control for filter cutoff
- footswitch input program up
- footswitch input sustain + EG release
- footswitch input glide control.


 

edit TECH main 8 bits CPU 6502 manages 8 voices polyphony organized on 4 voice boards with stereo mode . A synth basic patch is composed by 2 DCO oscillators + 1 white-pink noise generator.

dco

demo Hear stereo mode

 


edit
OSCILLATOR DCO1 and DCO2 can be ringomodualted and mixed with individual mixer and have similar characteristics:

DCO octave range: 16' 8' 4' 2' 1'

shapes: sawtooth / pulse (variable width) / square / triangle

detune: yes

Hardsynch: 2>1
demo Hear hardsync harp





edit PERFORMANCE
the multiplexed boards feature 4 playmodes:

elka synthex tech

- double mode: is a layer of 2 sound patches
- split assigns 2 patches on a different keyboard zones
- stereo panning mode: voice boards are sequenced to left or right stereo field
- polyphonic portamento with glide option and variable speed rate demoHear glide





filterFILTER
is a multimode resonant model based on 8 Curtis CEM 3320 chips.
The VCF works in 3 different modes with possible polarity inversion option:

filter4


- lowpass at -24 dB slope

- bandpass at -12 or 6 dB slope

- highpass at -12 dB slope.

demoHear filter sweeps




lfo LFO
there are 2 LFO, a main one (LFO1) and a simpler one (LFO2) triggered by joystick that modulates onlu pitch and filter with a triangle shape. LFO1 is quite complet:

lfo

shape: triangle /saw/ ramp / square

destinations: pitch / width / amplitude

delay: yes

depth: yes
demoHear Insane LFO






adsr ENVELOPE
2 EGs:

lfo

- EG1 VCF 4 segments ADSR

- EG2 AMP 4 segments ADSR.

In addtion 2 extra functions for envelope control: hold and sustain.





edit SEQUENCER
a 4 tracks recorder with real-time or step entry notes.

sequencer

Each track transmits Midi signals, then whole sequence can be shifted in real-time for performance.

Recording function are limited to 5 buttons and 2 knobs: write, beats, delete, loop mode, ready-reset, gate EG value.

edit SYNC internal frequency or slave-tempo mode controlled by external + trigger pulses.





fx EFFECT
based on TDA1022 is a 3-modes analog chorus fixed rate and depth values.

sequencer

demoHear Chorus modes




repair synthex
MAINTENANCE Synthex suffers from common issues fx

picture by Gallio


- voice boards lifespan that is quite unpredictable, fortunately there are not so many custom IC onboard, Synthex is mainly build with TTL and common electrical parts on the shelf


- maintenance requires patience and experience since there are a lot of circuits inside and a precise calibration.






memroy MEMORY:

big elka synthex


- 40 ROM presets
- 40 RAM user slots
- 128 events per track (512 total)


memroy Memory based on internal battery, created sounds can be saved only to tape interfac.



lfoMIDI
second and third Synthex versions implement a simple Midi interface manage only basic note ON-OFF data.

big elka synthex

According to Castelfidardo center there have been 1850 machines produced:

- wave 1: 50 units (no Midi)

- wave 2: 800 units (external Midi interface)

- wave 3: 1000 units (standard Midi)




lfo
RELATED FAMILY

elka synthex reissue

The 2015 Synthex reissue failure.
After a failed crowd-funding campaign named "indiegogo Bringelkaback" the Finnish company just gave up on this project- even J.M jarre made a vid to support this funding.

Reality is: elka synthex will NOT be come back.

elka ysnthex 2

SYNTHEX 2- "the evolution of a legend" The original italian engineer Mario Maggi is working a new digital project called "Synthex 2".


READ THE SPECS from Synthex 2 website.

 

 

effet VST PLUGIN / SAMPLED VERSION there are some free and commercial samples set:

free synthex sounds

Polynominal

2 sounds fully sampled at 4 octaves: bass and a kind of brass pad sound.

30 MB FREE!
Free donation

FREE SAMPLES

FREE SAMPLES
synthex VST

ZOOTOOK

Xils-Lab
Syn'X

SYNTHEX VST- Free

Commercial
VST plugin
 





edit GALLERY:

german scan

flyer
synthex data sheet music messe jarre synthex
german scan scan germany gadget scanning magazine scan germany
synth cat elka synthex serial
Early model
     

 

Company: Elka
Model: Synthex
Class: Synthesizer
Keyboard: 61 keys
Dates: 1981
Display: none
Synthesis: analog sub
Polyphony: 8 voices
Oscillator: 2 DCO
Crossmod: hard sync
Ringmodulator: fixed
Multitimbric: 2 part
Filter: LPF / HPF / BPF
LFO: 2 modulators
Memory: 64 slots
Effect: chorus
Sequencer: 80 notes
Sync: trigger
Storage : tape
Midi: IN / OUT / THRU
CPU: 6502
IC: CEM 3320 /
TDA1022

demoDEMO:

demo laser harp classic
demo filter sweeps
demo modulation strings
demo Small town with SCI drumtraks
demo jam with TR-909
demo Lucky square with PDD-14
demo sounds like an air
demo Noise experiments
demo Synthex withDRP-16
demo Stereo Mode
demo Glide stereo
demo funky
demo chord progression
demo another bass liner
demo Square waves
demo Insane LFO
demo Chorus I - II - III
demo Bouncy bass
demo Bassline stereo
demo mix demo by S.Codazzi
demo mix demo by R.Gallio

demohave some Synthex
demo?
upload!

 

manual



manual

 

edit Sample SHOP
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edit SUPPORT US


laser harp
the LASER HARP

 

ELKA SYNTHEX FOR SALE
elka synthex for sale

CHECK OUT EBAY OFFERS


 

lfo

 

 

synthesizer Elka serial slider

awardSPECIAL AWARDS:

solid solid
analog king rare

comment

REVIEW "The Elka Synthex is one of few analog polyphonic-structured synthesizer that boasts deep bass, rich strings and complex magical electronic sound. A true sonic cult, few true alternative, even today!"

manual manual
-Massive polyphonic

- technical care

-sound
- basic Midi
- Sequencer - High price
- rare  

title synthex

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all snapshots*, sounds, texts copyright Polynominal.com / Eric Pochesci -* overhaul picture by Riccardo Gallio: thanks! also for some demos.
polynominal.com is not associated or affiliated with ELKA / ORLA / Mario MAGGI in any manner.

Elka synthex Elka Synthex
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