Siel DK 700 Project Machine

“SIEL DK 700 SYNTHESIZER – MIDI WORKS – Keyboard Not Operating.

Power cord included, does have a substance melted to it, power cord function unaffected.

The midi works, which is the desirable part of this rare 80s keyboard. the keys themselves are not functioning. One key has damage underneath, seen in one of the pictures.

Perfect for the person who can repair the keyboard or good for use just as a midi.” Click here to visit listing on eBay

Siel Orchestra Project Machine

” Rare Siel Sielorchestra synth. Sold as spares or repair as there is no audio output. When the switches are moved the lights come on.

Later it became the Arp Quartet when Siel were acquired.

Obviously no returns.

Previously sold to a buyer who didn’t notice that it needed repair.” Click here to visit listing on eBay

Siel DK 80

“Used Siel DK 80 FM Synthesizer. From 1985. Very similar to the DX-7 Yamaha. I used this for a few years and it always worked well. Pulled it out of storage yesterday (a temperature controlled bedroom in my parents house) to test before selling and it doesn’t seem to work anymore, however. The unit makes somewhat loud (relative to the sound of the synth sound) buzzing sound, or the synth level seems quite low. Also, the synth doesn’t seem to want to change programs but honestly maybe that is simply because I can’t quite remember what to do to make that happen!” Click here to visit listing on eBay

Siel Expander 80

” Siel EX 80 Synthesizer with PS 80 Power Supply and Case – Great Condition.

So, what’s this?! The Italian company Siel released their DK80 synth keyboard in 1985, which was a 12 voice analogue bi-timbric (2 sounds at once) synth. The Expander 80 was also released at the same time (costing only £399, the cheapest instrument in it’s class by a long way) being essentially (but not just) half a DK80 – 8 voice polyphonic and one sound at a time. Originally the Expander 80 was not supplied with a power supply, as the DK80 one was designed to drive the pair (Siel expected the DK80 owner to be the typical owner of the Expander 80). The Expander 80 still retained the 300 event two track sequencer, although both tracks have to play the same sound. Similarities to the Korg EX800 cannot be ignored, especially as the voice architecture and front panel layout do have similarities. The Korg EX800 was released a year earlier in 1984, so the Siel Expander 80 definitely followed it. Internally, they share no common electronics – so it’s no surprise they sound different.

Of course, people realised pretty quickly that if you didn’t need yet another set of keys, the EX 80 was actually probably a much more useful and versatile instrument, as part of a wider rig.

Over time, this has become a) rare as hens teeth and b) quite sought after as a seriously quirky (and with some tweaking, surprisingly aggressive) monosynth, with a real analogue sound, digital control, and a lot of character. The other major issue with these is the ludicrous power supply which is very hard to find indeed, and which have started selling for silly money on their own (and which can power both a DK 80 and EX 80 at the same time, if needed – two outputs). Luckily, this listing includes an original power supply, so no trouble in store with that.

I’m also selling this with the case it’s currently living in – it fits it well (minus power supply, which could handily double as a boat anchor) – it’s a good solid well-padded case, so that’s a nice bonus.”
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Siel Orchestra

” Good condition for age (see photos). A few scratches and chips to woodwork, but nothing major. All keys and controls work, except for the spring on the Brass Mute key (but Muting still works if switch held)

The Orchestra is a 4-part orchestral synthesizer from the classic Italian synth company, Siel (later bought by ARP and relabelled the Quartet). The Orchestra has 4 presets: Brass, Strings, Organ and Piano.

The 4 tone color families can be played individually or two can be simultaneously played. They are also individually tweakable. Selected presets will light up each bank’s LEDs to show you which sliders and buttons can be used to modify the sounds.

Its a classic instrument, so no Midi or external control, but however its analogue sounds are rich and warm, and it is, after all, a classic analog string synth.

The Brass section creates Trumpet and Trombone sounds with independent attack and sustain controls.

The String section creates Cello and Violin sounds with independent attack and sustain controls.

The Organ section is 2-voice and has a Celeste sound available as well.

The Piano section offers two types, traditional or Honky Tonk. The ARP Quartet, which is completely identical to the SielOrchestra has been used by 808 State and Massive Attack for some of its great string sounds. ”
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Siel DK-600

“Good condition, display board also may have some technical issues/need parts, keyboards work well, audio output has technical issues may need replacement parts, unit has small imperfections from normal use, see photos for details, case has small exterior scuffs/marks”
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Siel PX

“For auction

Siel PX analog electric keyboard

In good working condition with a few scuffs and scrapes, however, it seems to take a very long time to warm up. Given that it has analog circuitry, it is expected to take some time to flow but it does seem to take exceptionally long. Once it warms up, every preset works on every key. If you plan to give this keyboard extended usage, this should not be a problem. I like the pattern on this keyboard quite a lot, but it is quite bulky for what it is. That being said, the sound is typical of italo-synths of the era, warm and quirky and through effects, the presets are very workable. I believe there was a soft-sampler version of this synth on KVRaudio a while back if you don’t have space for it. ;)” Click here to visit listing on eBay

Siel DK600

“You are bidding on the rare and vintage Siel DK600 analog synthesizer in great cosmetic condition. One of the keys (C-note) sits lower than the others. Synth powers on and lights up but sound output does not seem to work. Sold as is. Comes with power cable.” Click here to visit listing on eBay

Siel MK900

“THIS IS BEING SOLD FOR PARTS OR REPAIR, IT IS NOT WORKING. THE PLASTIC COVER HAS BEEN REATTACHED.

What is pictured is exactly what you will receive, if it is not pictured or stated as included, then it is not included.” Click here to visit listing on eBay

Siel Orchestra

“Lovely old siel orchestra Synthesiser

This unit works and sounds great it doea have a couple of issues.

The mute switch toggle has come off switch does work you just need to push something in the slot to flick it. The volume pot is very crackly if you set it in a good position and leave it it sounds fine and is very useable. Top of the reed button is missing but button still works.” Click here to visit listing on eBay

Siel Mono

siel mono “Siel Mono – an Italian Monosynth from the early 80’s. Siel were in partnership with ARP and some of the Siel range were also badged as ARP such as the Quartet. I have had a couple of these Monos and this is by far the best example I have ever seen – see pictures for condition. There is no rust – which is common on these – and all button caps are present. All sliders, switches and lights work. This one has a rare volume pedal with it that fits the din style socket on the back. This one also still has the back legs to tilt it up – these are often missing on these synths. It can do a good impression of a Moog, fantastic basslines, lovely Pink Floyd horn synths and nasty leads. Still has original Owner’s Manual and Schematics which show it has been cared for. ” Click here to visit listing on eBay

Siel MONO

siel-mono “Der Siel MONO wurde durchgecheck und ist voll funktionsfähig.

Leider fehlt eine Potikappe und am rechten oberen Gehäuseeck

ist leider etwas der Lack abgegangen.

Der kleine Synth klingt “mördermäßig fett” und läßt jeden virtuellen

Synth und jedes PlugIn weit hinter sich!” Click here to visit listing on eBay

Siel DK600

dk600 “The successor to the famed Opera 6.

2 DCO (12 voices), 3 LFO, SSM (2044 filter/2056 vca) goodness.

This thing was torn down, cleaned, recapped, calibrated, key bed supports redone, bus bars from keys to vel sensor board resoldered, osc mod, every knob conditioned, and all connectors hot glued to ensure long term and stage durability.

I assure you this is the finest DK600 on the market right now. All the tech work was done by my tech, Duane R. Balvage. ”
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Siel DK80 Project Machine

dk80 “HERE WE HAVE A VINTAGE 1980’S SIEL DK 80 DYNAMIC BITIMBRIC SYNTHESIZER KEYBOARD MADE IN ITALY. KEYBOARD DOES NOT COME WITH POWER CORD SO THEREFORE COULD NOT BE TESTED. SOME OF THE KEYS ARE LOOSE SO LOOK AT PICTURES FOR MORE DETAIL. SOLD AS IS. PLEASE LOOK AT ALL THE PICTURES BECAUSE THE ITEM YOU SEE IN THE PICTURE IS THE ITEM YOU WILL BE RECEIVING. ONLY WHAT IS PICTURE IS WHAT IS INCLUDED IN THE AUTION. THANK YOU AND HAPPY BIDDING.” Click here to visit listing on eBay

Siel DK600

dk600“SIEL DK600 Analog Synthesizer Working Great and Sounds Awesome! See Pics & Desc! Up for sale today is my personal Siel DK600. I do a lot of buying and reselling but I have owned this one since around 1994! It was dead when I received it, but it turned out just to be the battery. Fortunately, this keyboard never suffered serious corrosion as I was able to replace the battery long before there were any major issues. I’ve had this keyboard in the closet for about 10 years and just don’t use it too much due to DAW plugins so I have reluctantly decided to let it go. The battery was once again dead, so I just put a fresh one in a few weeks ago. Also, I reprogrammed it using a sysex dump someone made on the Internet from an Opera 6 and it’s working great! Does everything work? Well, I do not know for sure. I know the tape interface which is used to save sounds never really seemed to restore the sounds correctly, but the sysex dump does! The controls for the DCO, LFO, etc are responsive and you can save and load sounds using the keyboard. However, there may be advanced functions I am missing. Anyone who is familiar with these keyboards know they are finicky and frankly, was not designed for travelling in my opinion. Since I have owned it, I moved to from Texas to Washington state, and back to Texas. Each time, I had to crack it open and reseat some of the connectors. When changing the battery, I attempted to clean them all as well as I could. What am I saying? It’s possible something could shift when I send it, but the worst case will be opening it up, and pushing all of the connectors tight. Hopefully, they are clean enough to make it. We package everything VERY well, and will take every precaution we can to keep it safe! ” Click here to visit listing on eBay

Siel DK 600

dk600 ” SIEL DK600 Analog Synthesizer. Oscillators and keys and controls seem to be functional and it produces interesting synthesizer sounds, very clean condition, nothing obviously physically broken and all knobs and rockers vary the sound and appear to be functional. Was purchased by a friend and traded to me for my studio in exchange for other items and services. Not much interest in a synth since we record blues and rock.

It has two programs, 11 and 12 loaded, and entering other numbers does not produce sound. Contact me if you have specific questions I will try to answer. I am willing to do a phone or FaceTime to discuss the operation of the unit.” Click here to visit listing on eBay

Siel Expander Project Machine

siel expander “Auction consisting of :

1- Siel A.C. design midi expander Synthesizer

weights approx. 17.7 Lbs.

If you aren’t a electronic instrument repair person or have access to one, please be advised that this is a no return auction. battery has leaked a little, missing the three screws that hold the cover down, I don’t know what this is or how to test it.” Click here to visit listing on eBay