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Elka Synthex

 

 

 

elka synthex

  audio demo trend price : 6000€
manual schematic demo video comments

Elka Synthex (1981)

 

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

* HOT* read new about the 2015 synthex reissue and Synthex 2 project

synthesizer Elka

left board

info KEYBOARD (weight: 30 Kg) 61 keys, 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 out
- expression pedal input control for filter cutoff
- footswitch input program up
- footswitch input sustain
- footswitch input EG release
- footswitch input glide control




editVOICES
system CPU 6502 manages 8 voices polyphony split on 4 voice boards.
A voice is composed by 2 DCO oscillators + 1 white-pink noise generator.
Some DCO functions:
- second DCO can be hard-synched to first one 2>1
- digital ringmodulator with fixed value


structure

edit OSCILLATORS Synthex DCO structure:


  DCO1 DCO2
octave range 16' 8' 4' 2' 1' 16' 8' 4' 2' 1'
waveforms saw / pulse / square / triangle saw / pulse / square / triangle
detune yes yes
PWM yes yes
sub oscillator no no
mix volume yes yes


edit PERFORMANCE the multiplexed boards features different playmodes:
- double mode: is a layer of 2 sound patches
- split: assign 2 pacthes on a different keyboard zones
- polyphonic portamento with glide option and variable speed rate
- stereo pan mode: voice boards are sequenced to left or right stereo field


oscillators



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:
- lowpass at -24 dB slope
- bandpass at -12 or 6 dB slope
- highpass at -12 dB slope


filter

filter

 

lfo LFO there are 2 modulators with different characteristics:

  LFO1 LFO2
waveforms triangle /saw/ ramp / square triangle
destination pitch / width / amplitude pitch / filter
joystick trigger no yes
depth yes yes (joystick trigger)
delay start yes no



filter


adsr ENVELOPE
2 EGs:
- EG1 VCF: 4 segments ASSR
- 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.
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
- 2 knobs for gate EG value

filter

seq spec


edit
SYNC internal frequency or slave mode controlled by external + 5V trigger pulses.



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



memroy MEMORY
holds:
- 40 ROM presets
- 40 RAM user slots
- 128 events per track (512 total)
Sounds can be saved only to tape interface.



midi MIDI
second and third Synthex versions implement a basic Midi interface that manage only basic note ON-OFF data.



lfo Production Series
according to Castelfidardo center there have been 1850 machines produced:
- wave 1: 50 units (no Midi)
- wave 2: 800 units (external Midi box)
- wave 3: 1000 units (standard Midi)


repair synthexMAINTENANCE Synthex suffers from common issues:
- 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
- be friendly with you trusted technician.

serial

picture by Gallio



big elka synthex


lfo RELATED FAMILY

elka synthex reissue

REISSUE In 2015 General Music that actually owns Elka brand, announced that some famous synthesizers COULD have a reissue! maybe the italian beast could revive like the Korg Mini-Ms20 or the Korg Odyssey? VIDEO.



The brand ELKA is owned by a Finnish company that should rebuild the machine in Salo, a mix of modern and traditional vintage analog technologies (including NOS CEM) but apparentely the original engineer is not directly involved in this operation. Actually this "reissue" is not really well-defined, in fact there is a crowd-funding campaign (first deposit is 3181$) "Bringelkaback" but NO PROTOTYPES are officially ready.

There is actually no elka synthex reissue since reverse engineering is stil underway: the crowd funding will be the key and the faith of this reissue. There are a LOT of hoaxes around this, but I am personally skeptical about this operation. Will Synthex ever coming back?

elka ysnthex 2

SYNTHEX 2 it is not a secret that original italian engineer Mario Maggi is working a new project called "Synthex 2". I heard this gossip years ago, but maybe this could be real, but once again nothing sure about this. It MIGHT be a vaporware, but the 2015 synthex probably project maybe moved something in Italy. More to come.

picture from Audiocentralmagazine

 

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


  name price link demo
free synthex sounds Polynominal

30 MB FREE!
2 sounds fully sampled at 4 octaves: bass and a kind of brass pad sound. ENJOY!

MORE TO COME.

FREE SAMPLES N/A
vintagelegends UVI Vintage Legends commercial
sample pack
effet demo
synthex VST ZOOTOOK FREE VST effet N/A
Xils-Lab Xils-Lab
Syn'X
Commercial
VST plugin
effet demo Syn_X.mp3
alesis fusion library The synthex Commercial
Library for Alesis Fusion synthesizer
effet video
nord library Synthex Nord Library Free library samples
only for Nord synth
effet nord demo



demoAUDIO DEMO

demo laser harp classic
demo filter sweeps
demo modulation strings
demo Small town with SCI drumtraks
demo trio jam with TR-909
demo Lucky square with Dynacord PDD-14
demo sounds like an air
demo Noise experiments
demo Synthex with cheap reverb DRP-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 / Chorus II / Chorus III
demo Bouncy bass
demo Bassline stereo
demo mix demo by S.Codazzi
demo mix demo by R.Gallio
demo  


cloud sound Soundcloud Synthex DEMO


beethoven cloud2 cloud1


video YOUTUBE VIDEO CLIP SELECTION

Paul Wiffen & The Elka Synthex Synthex Demo Sounds Synthenoxe Part 1.0
Paul Wiffen Demo Sounds Synthenoxe Part 1.0


Elka SYNTHEX - My Sounds 1 - 20 Laser Harp sound by Elka Synthex ELKA Synthex & Roland CR-78
My Sounds 1 - 20 Laser Harp sound with Roland CR-78


italian synthesizer


 




manual
ELKA SYNTHEX USER MANUAL

 

 



manual
service /schematics

 

 



PROTOTYPE

serial


Synthex prototype page featuring different voiceboards design.

 

 


german scan

 

 

 

 

german scan

 

 

 

synthex data sheet

 

 

 


flyer

 

 


music messe

 


scanning magazine

 


jarre synthex

 

 


scan germany

 

 

 

scan germany

 

 

 

gadget
Synthex Gadget :)

 

 

synth cat

 

 

FAMOUS VIDEO

rendez-vous

RENDEZ-VOUS CLIP

 

 

laser harp
the LASER HARP

 

 

ELKA SYNTHEX FOR SALE
elka synthex for sale
CHECK OUT EBAY OFFERS

 


 

 

synthesizer Elka panel slider


manual

-Massive polyphonic sound
- Sequencer
-Memories


manual

- technical care
- basic Midi
- High price


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."

title synthex


Please write only in english.

 

 

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all snapshots*, sounds, texts copyright Polynominal.com / Eric Pochesci
* overhaul picture by Riccardo Gallio: thanks! also for some demos.

elka synthex 4.5 out of 5 based on 101 ratings. price €5000