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Siel EX-80

 

 

Siel EX-80

info Country: Italy
Weight: n/a
Dimensions: n/a
audio demo trend price : 150€
demo video comments

Siel Expander
EX-80 module (1985)

 

Module released as an expansion of the Italian synthesizer SIEL DK-80 (how to connect) technically slimmed-down, but keeping same synthesis structure.

siel expander 80
edit

info MODULE main panel features a segment display, 24 buttons and 2 knobs.
Module can be rackmounted with optional ears.

Back panel terminal connectors:

- stereo output (mainly for chorus effect)
- sequencer clock input
- headphones
- Midi interface
- pedalswitch input assignable to LFO retrig, sequencer start/stop or patch UP.


 


edit
TECHmachine handles 8 voices polyphony type DCO based on a custom SGS IC M112B1 which is also the VCA. The oscillator is digitally controlled DCO which basically features 2 shapes:

dco structure

- square with 3 summable harmonics octaves 16' 8' 4' (each harmonic has individual gain)


- sawtooth





editOSCILLATOR
EX80 can stack polyphony voices into 2 different DCO modes:

dco structure

- Single --> 1 DCO and 8 notes + 1 pink noise

- Dual --> 2 DCO and 4 notes with detune + 1 pink noise




edit
FILTER paraphonic resonant filter based on a single SSM2045 at 4-poles slopes:

ssm 2045 vcf

SSM 2045 can be found also on other italo- machine like Solton Project 100 or famous milestone like EMu Emulator II or some Fairlight CMI versions. Worth to mention a useful keytracking option.

demo HEAR resonant ilter in action




edit
ENVELOPE 2 EGs:

adsr

- EG 1 voice A.D.B.S.S.R
- EG 2 filter A.D.B.S.S.R

NOTE: A.D.B.S.S.R. stands for: attack, decay, break-point, slope, sustain and release

demo HEAR slow pad EG




edit LFO up to 2 delayed modulators range from 0,25 Hz to 10 Hz:

LFo - LFO1 DCO pitch
- LFO2 VCF cutoff
Extra modulation options are: initial and final depth, free flow or manual retrig mode demo HEAR LFO on VCF


 


edit
SEQUENCER manages up to 2 tracks with no special functions but an internal Metronome.

siel expander 80

Sequencer clock can be synched to either:

- analog trigger input

- digital Midi clock

demo HEAR synched drum machine







edit MIDI
all parameters can be controller by Midi control change.


midi edit

-> full CC list







edit
EFFECTS just one analog chorus based on BBD TDA1022P with no possible edit.

tda ex80

editNOTE :Chorus is not available when using WHOLE DCO detune.Other machine with TDA 1022 chorus: Elka Synthex / Siel Cruise / Orla DSE24 / Elka Omb5.

demo HEAR TDA chorus on noise



edit EDIT EX80 Just a few editors are available:

- Midiquest Ex80 editor (pc/mac)


- GD80 for Commodore 64, absolutely no info but this pic

siel ex80 editor



edit
OS is burnt on a single EPROM TMS2564-45JL

TMS2564-45JL

LEFT OS EPROM

LATEST?edit

- CLICK to ENLARGE PICTURE -



edit
MEMORY:
- ROM 40 sounds (read list)
- RAM 10 sounds
- RAM 300 notes
RAM can be expanded using special cartridge RAM PACK which adds 50 slots.

siel ex80 internal

LEFT - Battery replacement: soldered CR-2032 battery 3V

- CLICK to ENLARGE PICTURE -

zak

 



edit MAINTENANCE
common issues is the power supply model PS-80 weird 16 V AC with 500 mA and custom pinout - be sure to get this one before buying one unit!

PS-80

 

edit RELATED FAMILY:

Suzuki sx500

Suzuki SX-500 - same machine but rebranded for other markets.

Siel Dk80 Siel Dk-80 - essential double DCO structure (bi-timbric) twice powerful than ex80.
Korg Poly800 Korg Poly-800 - the Ex80 is often compared to the poly800 for similar structure (sum square + paraphonic, script) but they have different electronics guts and sound different.



edit
GALLERY:

siel ex80 brochure scan siel ex80 brochure scan
siel ex80 brochure scan
original advert    

 

Company: Siel
Model: EX-80
Class: synth module
Dates: 1985
Display: 7 segments
Technology: analog
Synthesis: subtractive
Oscillators: 8 DCO
Polyphony: 4/8 voices
Multitimbric: 1 part
Filter: LPF paraphonic
LFO: 2 modulators
Envelope: 2 Egs
Sequencer: 2 tracks

SYNC: Midi clock / trigger
Effect: analog chorus
Midi: IN / OUT / TRHU
Memory: 10 slots
Storage: RAM cartridge
DCO IC: SGS M112B1
Filter IC: SSM 2045
FX IC: BBD 1022P
PSU: 16V AC- AC

 

demoDEMO:

demo track: full ex80 but drums
demo organ: kinda blues
demo piano: "piano"
demo Pad: chill chords
demo Pad: last one
demo Pad: ambient
demo bass-TB
demo String: resonant
demo String: s& Hold fake
demo String: another SH
demo String: ssm
demo Synth: 8 bits drama
demo String: LFO
demo Synth: pulsed
demo Synth: Zak and Sushi
demo Synth: the harrier
demo Synth: lofi
demo Synth: c64 and molière
demo Synth: high lfo
demo Synth: mystery
demo Synth: dark filter
demo FX: danger
demo FX: droned
demo FX: lfoized
demo FX: sh
demo FX: chorus

demohave some EX80
demo?
upload!

 

manual

manual

manual
-SERVICE MANUAL / SCHEMATICS
-Free soundset
- OS EPROM BINARIES

 

edit Sample SHOP
edit Report Error
edit DONATE


siel ex80 brochure scan
adsr Siel Buggy
is also based on the IC m112

 

SIEL EX80 FOR SALE

siel ex80 for saleCHECK OUT EBAY OFFERS

 

 

 

 

 

sgs m112b1 ex80 eprom sgs
awardSPECIAL AWARDS:
underrated bread and butter
edit nervous Plastic design


comment

REVIEW "A cheap box with a LOT of limitation: , just some simple analog polyphonic sounds. "

manual manual
-price -paraphonic
-Midi implementation
- limited
  -edit interface

 

Add Comment or Review

 

 

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