GeneralMusic GEM S2 / S3 – ingenious pro-synthesizer

Maybe you’ve heard some of those ever-persistent murmurings about the GeneralMusic S-series: “The S2 synthesizer – a secret sound weapon”, “GEM S2 and S3 are among the best master keyboards on the market”, “great polyphonic aftertouch”, “some intriguing sounds”… and on and on.

Let’s have a look at that GeneralMusic S-Series. Are these synthesizers from the early 90s as innovative as rumours have it?

GeneralMusic S3 Turbo

GEM – a respectable name in the home organ/keyboard/e-piano market

GeneralMusic unfortunately filed for bankruptcy some time ago. It was among the last Italian keyboard manufacturers, along with Ketron (Solton). The company had grown substantially, especially in the late 80ies / early 90ies. But let’s start even further back and have a look at Crumar first. When the great keyboard & organ manufacturer closed its doors in 1986, it was bought by LEM. The latter was taken over by GEM a few years later, as was ELKA.

GeneralMusic S3 Turbo

1994 GEM changed their company name to GeneralMusic, but kept GEM as a brand. That means that GeneralMusic now hosted GEM, LEM and ELKA. GEM was still a name to take seriously in the portable keyboard, workstation and e-piano market. LEM produced mixing consoles and loudspeakers, while ELKA offered guitar/bass amplifiers and portable p.a. systems.

In the early 90ies, GEM/GeneralMusic had some 500 employees in five locations. The R&D (Research and Development) department alone employed 25 technicians. That’s where, among other things, some of the S-series custom chips were developed.


The S-series actually was one of the last products ELKA began. After its collapse in 1988, GEM/GeneralMusic took over the plans and brought the innovative “S” synthesizer project to realization. Sadly, the success of the S-series was limited, so GEM/GeneralMusic cancelled the whole product line once the Turbokit had been released. A few years later another, very “S”-like synthesizer appeared, the GEM Equinox. It closely resembles the S2/S3 and seems to be GeneralMusic’s last delving into high tech synthesizers.

I bought the GEM Equinox Pro 88 in 2010 and, to be honest, I can tell you the old S2 / S3 is much better (… it’s mainly the quality and originality of the sounds which is much better and a lot more inspiring).

In 2007, GeneralMusic’s product line contained arranger-keyboards, multimedia workstations, e-pianos, mixing consoles, loudspeakers and p.a. systems. But there was a time when the Italian company could easily have competed with any Japanese or American hi-tech synthesizer manufacturer. That was in the days of the S-series …

Meanwhile, Generalmusic closed its doors. On February 2009 Generalmusic fired all workers that immediately filed for bankrupt which has been declared in 2011. Very sad.

GeneralMusic S3 Turbo

We repeat, GeneralMusic made its first serious move into high tech with the GEM S2/S3 and S2R in 1992. Looking at the S2/S3, they seem like any ordinary sample + synthesis keyboard workstation. But these are professional, genuine synthesizers with some fresh new functions and – best of all – a wonderful sound. Physically speaking, they tote some outstanding features: The enormous, deeply sunken aquamarine LCD, the two moulded (freely programmable) wheels, the masculine 61-note/76-note keyboard, the many panel controls.

Although the panel is crowded with knobs, it doesn’t seem cluttered. Most knobs have a specific function, such as EFF. BYPASS, CLIPBOARD or MIDI OFF. The S-serie’s flexible (open) operating system (called MIOS) lets you move about the instrument in a free-flowing computer-like style.

GeneralMusic Equinox Pro 88

GeneralMusic Equinox Pro 88

The early 90ies – birth hour of many respectable S+S workstations

The field of highly professional S+S (sample + synthesis) concepts was quite crowded back in the early 90ies. Actually, the story should start back in 1988 with the all-time classic Korg M1. Its successor, the 01/W, had a bigger screen, more samples, double polyphony and a new “crazy” feature called waveshaping. It remains a very popular workstation up to this day. Roland tried to continue the success of the D-50 and released a PCM sample-based synthesizer called D-70. Sadly, it was too complex to program – a real pain, once you began delving beneath the surface! Yamaha’s SY77 (and its rack version TG77) equally suffered from a too-complex operating system. Although they could have been milestones in synthesizer history (as was the DX7), those wonderfully sounding synthesizers were a pain to operate. Not even the more flexible flagship SY99 was rid of those inherent complexities.

In 1991, Roland’s JD-800 should have been the big seller, but it wasn’t! Too many knobs! People were too easily intimidated by all those sliders and buttons – although synthesizer designers in their turn must have found it pretty nerve-wracking, trying to figure out what synthesizer-programming concept people were actually looking for. 1991 was the birthday of Kurzweil’s K2000, too. This highly respectable instrument was the beginning of a whole bunch of professional synthesizers – up to the latest K2661 now in 2007. One year later – in 1992 – GEM (later GeneralMusic) hit the market with the GEM S-series.

GeneralMusic Equinox Pro 88

GeneralMusic Equinox display

S2, S3 and the rack version S2R were hi-tech instruments, but the company name was by no way an asset. Not many pros knew GEM/GeneralMusic to be a producer of studio synthesizers. The Turbokit for 32-voice polyphony, equipped with an expanded ROM sound bank, didn’t help to turn the S-series into a pro’s instrument, either.

GEM/GeneralMusic stopped its production and support as soon as it became obvious that the whole range would turn out to be a flop. Completing the list of outstanding early 90ies professional synthesizer / workstation concepts, we should mention the Roland JD-990 and Ensoniq TS-10. Both were introduced in 1993. Finally, there was another innovative workstation from home keyboard producer Technics. The WSA-1, released in 1995, was a fully professional, future tech synth with acoustic modelling synthesis. Once again, the missing reputation in the pro user segment was the company’s biggest hindrance to establishing the instrument on the market.

GEM S2/S3/S2R are pro synths with some first-rate sounds, innovative editing procedures and a rarely-to-be-seen polyphonic aftertouch. The only limit was the professionals’ willingness to accept a new name. And maybe rumours were still around that the Italians could not manufacture a proper synthesizer. In its days, Crumar, for example, flooded the market with cheaply built instruments. Many of them toted serious sounds and were based on innovative concepts, but the hardware tended to be low quality. Buy a japanese synthesizer and you know what you get!

GeneralMusic (GEM)

GeneralMusic (GEM)

But history tells us that there were some great pro synths that the Italians definitely got out on the market. The Synthex, for example, is better constructed than the Jupiter-8 or any Oberheim OB-8/Xa/X. That’s not to say that it’s more reliable, but the whole concept and construction is more professional than any of its competitors’ products! The GEM S-series is at least at the same hardware level as a Yamaha SY77/99, or any Korg or Roland workstation. The implementation of polyphonic aftertouch (with release velocity!) afforded high GEM/Generalmusic production costs. And the S-keyboard panels were covered with a special finish (a sort of rubber-encased plastic) that looks very elegant. GEM even produced a Turbokit for the S2/S3 which boosts polyphony up to 32-voices and expands the ROM bank to over 500! IF GEM/Generalmusic had kept producing instruments like this, we might be listing the company name right next to Roland, Yamaha and Korg today – who knows!

Music Processor

Let’s have a close look at the S-series. Basically, the instruments are sort of expanded workstations. What’s new about them? The flexible operating system allows you to use the S2, S3 as a MIDI merge center. Without using the internal sound engine, you can take advantage of the sequencer or control sliders, route and control any external MIDI device in any way you desire. There are two (!) independant Midi busses – that’s a rare one on most workstations, isn’t it? But, sure, nowadays you don’t buy a S2, S3 solely because of its sequencer or MIDI functions. Today you might be interested in these synths because of their intriguing sounds.

GEM did everything to make the S-series as userfriendly as possible. For instance, there’s a row of seven sliders and buttons next to the display, foolproofly marked with volume, attack, release, filter, pan, etc. Although the good point is, you’re not locked into these functions. Switching to “user” mode, you may use the sliders and buttons to control any functions within the overall S2, S3 patch. There’s 6MB of sample material to start with, and the two 2 pole 12dB filter can be combined to a single 4 pole 24dB state variable multimode-filter.

Two independent effect machines are “standard” for this type of workstation concept, but here again, there’s a little bonus: the global rotary effect is not only nice, but extremely useful. I wish more instruments featured this function. The two wheels can be used for standard pitch/vibrato performances, or can be assigned to any other function you wish. Boy, it spells real fun playing a cutting leadsound while changing its attack with the modulation wheel! As with the wheels, the CV/Pedal-IN ports are freely programmable. You’re probably getting an idea of how powerful these instruments are!

GeneralMusic S3 Turbo - Music Processor

GeneralMusic S3 Turbo – Music Processor


By chance, I got to know Lothar Jenske, who worked for many years as a repair man in the German GeneralMusic compartment. “S2/S3 hardly break down” he says. “Generally, they are very reliable instruments”. Sure, as with all electronic gear, some voice less positive experiences as well. In 2002 a user posted the following bloq: “During my last gig the S3 suddenly caught fire. The audience was excited – they thought it was a pyro-effect and part of the show – but it was anything but funny to me”.

The instrument’s display is breathtaking, it’s extremely bright due to special neon background lights. The wheels have a rough surface and are very good to use…

Fader and switches are pretty good quality as well, though some of the switches are very petite. While programming, you need to concentrate in order to make those adjustments exact …

GeneralMusic S3 Turbo

GeneralMusic S3 Turbo

Last but not least, it’s the brilliant keyboard action that turns the S2, S3 into a potential master keyboard. The lightly weighted action (to use GEM’s own phrase) combined with polyphonic aftertouch sensitivity (with release velocity!) shows the great master key’s potential. I think polyphonic aftertouch opens a whole new world to the creative musician. Sadly, this great feature was among the most unpopular ones in the S-series’ history. Maybe keyboard (not piano!) players weren’t skilled enough to use the polyphonic feature correctly. To be honest, IT IS NOT EASY to control different keys with independent finger pressure.

The following list shows the basic specifications (dimensions, weight) of the GEM S-series:

  • S2 1055x116x350 mm, 16 kg, 61 keys
  • S3 1267x116x350 mm, 18,5 kg, 76 keys
  • S2R 434×132,5×276,5 mm, 7,3 kg, rack version
GeneralMusic S3 Turbo

GeneralMusic S3 Turbo


In 1992, when the S-series was released, the press immediately pointed up several missing or improvable features. 16-voice polyphony wasn’t sufficient, important sequencer functions were missing, some day-to-day functions needed to be improved, etc. GeneralMusic, still trying to establish its synthesizers on the pro market, didn’t hesitate and released a respectable Turbokit.

Some of the improved features:

  • a maximum of 32-voice polyphony
  • more than 500 ROM sounds
  • 100 preloaded performances
  • integrated sample translator 2
  • improved sound edit functions
  • improved disk management
  • upgraded sequencer

Let’s have a look at some details of the Turbokit version. For a start, performance titles are now displayed in BIG letters …

GeneralMusic S3 Turbo

GeneralMusic S3 Turbo

The main page on the display features an “Oct Up” / “Oct Down” option. It’s like a virtual silver switch of those good old Roland synths where you could easily transpose the keyboard up and down. Further, you may synchronize LFO to MIDI (!). Exciting, isn’t it? Even modern synths sometimes lacks this important function. All sorts of sys-ex data can now to be transmitted via MIDI (very important!). The demo-song is available directly from the ROM area (and not only from the disc), and well… with sample translator 2 you’re able to load Akai S-1000 samples …

All in all, I’d say the Turbokit version is the one to keep a look out for !!! IF you spend a couple of hundred Euros for this wonderful instrument, then why not get it right? I have to point out that some minor highlights of the original S-series’ sound edit functions were kicked out of the Turbokit version to create space. But to me, MIDI synchable LFOs, sending/receiving sys-ex data and other functions are reason enough to go for the Turbokit. By the way, the Turbokit Manual contains close to 100 pages!

S-Series – Programming and Performance

“The ‘theory’ behind every keyboard always takes a bit of head-scratching to figure out and, commendably be-buttoned, screened, and what-have-you’d thought it is, the S2 will still take time to understand fully.” (Colbeck, Julian: Keyfax 4, page 28)

The raw material for sounds is a bank of 208 waveforms. As usual, they are collected in groups: natural instruments, synth sounds, drums, etc. Their quality is quite good, and – as with Korg’s M1 – especially the sax sample seems to have attracted a lot of people. Once you’ve chosen the basic waveform, it is time to concentrate on the filter section, containing two independant multi-mode (digital) filters. What you get is lowpass, highpass, bandpass, parametric boost and parametric cut mode. Sadly, the filters are digital, which is audible. But they’re not too bad. I’ve personally taken a liking to the highpass mode …

GeneralMusic S3 Turbo

The Edit Page

The internal effects are organized in two separate effect units. Static effects contain reverb etc, while dynamic effects offer delay, pans, flanging, etc. The quality of the effects is sufficient. Pros, of course, will mute them in order to do external sound processing. But there’s an additional global effect that’s worth mentioning. The (stereo) rotary effect really brightens up sounds! This in addition to the vast panorama modulation function that the sound edit menu already offers. Add some high-quality external reverb (or delay) to your going-through-rotary-while-panorama-modulated lead sound, and you’re top dog!

I can’t tell you too much about the internal sequencer, as I’ve never used it. Basically, it’s a 16 track sequencer with detailed functions such as quantize, loop, track transpose, etc. It controls the internal sound engine and/or external synthesizers. Theoretically, you could run most of your studio equipment from the S2, S3 synthesizer with its two independent MIDI busses.

Although featured with tons of handy functions, the GEM S-series was designed to keep things as simple as possible. Most day-to-day functions are easily accessible. Switching the clock from internal to external mode is a matter of two clicks…

GeneralMusic S3 Turbo

Master Transpose …

Function Controller

Next to the very animating neon-lit display, the 7 sliders are among the most eye-catching physical aspects of the instrument. Volume, attack, release, filter 1, filter 2 and pan may be directly adjusted simply by moving the sliders. As already mentioned, you may re-program all functions to your own needs and save the new slider/buttons settings. In performance mode, with sounds “stacked” on each other, the sliders function as a little mixer… move the faders to get the right balance between the various sound volumes … very convenient, isn’t it?

Moving sliders intuitively may not always lead to absolutely exact programming results, so GEM / GeneralMusic implemented a Show function that displays each fader’s value on the large screen. That means you’re able to program sounds vaguely – on the run, so to speak – or, if you prefer, very precisely (with the help of that display).

GeneralMusic S3 Turbo

Excellent controllers …


You may have realized by now that some aspects of the S-series differ from competitor products. Here are a few more extras: The GEM S2, S3 offer…

  • Different Scalings, such as Equal Temp. (the boring one we’re all used to), Pure Major C, Pythag. C (the genuine mathematics is back!), Werck. (~meister), Invers (wanna perform a Joe Zawinul solo?), 1/4 Tone, Arabian, User 1-4. Yes, you may save your own scalings !!! I think this is a wonderful option. It might be a lot of work to programm personal scalings, but musical wise it opens new doors …
  • Stereo-outputs plus 4 single (sadly mono) outputs
GeneralMusic S3 Turbo

GeneralMusic S3 Turbo

  • There’s an UNDO function, just in case you made some potential heavy mistakes in programming …
  • Clipboard saves certain settings, it’s sort of a screenshot memory. Let’s say you created a very complex amplifier envelope (they may be up to 10 stages, in case I didn’t mention that!), and now you’d like to use the same settings for the pitch envelope. Simply “save” the amplifier envelope setting into the clipboard memory and recall it once you open the pitch menue. Couldn’t be easier …
  • Yes, the envelopes may be very complex. Up to 10 stages !!! Program a real complex envelope for dramatically different sound shaping once you get bored with the classic ADSR
  • Two totally independat MIDI busses (just to mention them once again)
GeneralMusic S3 Turbo

GeneralMusic S3 Turbo

  • Pan may be modulated by its own envelope, by LFO and key pressure
  • The Manual is quite good (at least the German version). It’s very detailed, and written in user friendly style …


Time to pay attention to the instrument’s sonical potential. Most presets are tasty, well programmed sounds that can be immediately implemented in your productions. In my opinion, many of them are too doused in reverb. But again, simply press EFF. BYPASS and use your outboard equipment instead of the internal effect units. The basic sound is very powerful and surprisingly strong. Thanks to all those modulation routings, the brilliant S2 and S3 engines give you expansive, atmospheric sounds.

Being interested in comparing both the original and the digital substitute, I played some simple chords on both the Elka Synthex and the GEM S3 (S3 first, to be exact). To my surprise, the GEM almost sounds better. Two small drawbacks (there’ve got to be some): The rotary function causes sort of a loop effect at the end, and the filter’s resonance is just not as colourful as on the original Synthex …

GeneralMusic S3 Turbo

Some of the buttons are too small …

In other words …

The GEM S-series is a real bargain. Right now in 2012, prices range from 250 to 400 Euros. That’s definitely reasonable, considering that any Roland D-50 costs the same money. If there’s a chance, try to get an S2 or S3 WITH A CASE (I didn’t, but that’s my advice!). The instrument’s special rubber-covered chassis is a little prone to injury, so a case really makes sense.

Sure, neither S2 nor S3 are dream machines. It takes quite a while to reach into the depths of the programming architecture. You need to learn that track and track may be two different things (a performance consists of up to 7 tracks = sounds, and, of course, the sequencer has its own, different tracks). Speaking about programming – I’d say it’ll take several months until you really feel at home.

GeneralMusic S3 Turbo

GEM S3: keyboard with polyphonic aftertouch (!)

But GEM/GeneralMusic did its best to create a synthesizer/workstation that offers heaps of functions for a better workflow. The gorgeous display, the freely programmable sliders, wheels and pedal-ins, the wonderful polyphonic aftertouch – just keep those aspects in mind. Most important, programming efforts end up in stunning, expansive sounds. I highly recommend these synthesizers to all programmers and players. GEM S2/S3 are both great sound engines and potential master keyboards as well.

GeneralMusic S2 / S3

Polyphonic Digital Pro-Synthesizer
(Music Processor)

SoundCloud-Link by Panu Talus (Finnland):
Generalmusic S3 Turbo – testing Bandpass with Polyphonic aftertouch

Filed under 2012, Reviews

“Es genügt, einen Ton schön zu spielen” sagte der Komponist Arvo Pärt im Jahre 2005. Diese Aussage ist ebenso einfach wie ich auch exzellent: Es braucht kein Meer an Tönen, denn entscheidend ist der Klang. Dass so mancher Vintage-Synthesizer der 70er und 80er Jahre teils unerreicht hochwertige Klänge liefert, steht außer Frage. Doch tatsächlich leben wir “heute” in einer nahezu perfekten Zeit. Einerseits hat man – mehr oder weniger – noch Zugriff auf die Vintage Analogen, andererseits wird auch bei Neugeräten die wichtige Komponente des hochwertigen Klanges wieder zunehmend berücksichtigt. Doepfer, Cwejman,, MacBeth, Moog, GRP, Studio Electronics, COTK, John Bowen und andere Hersteller bauen hervorragende Synthesizer, die den “Klassikern” in nichts nachstehen. All diesen (alten wie neuen) “großartigen” Instrumenten ist Great Synthesizers gewidmet. _________________________________________________________ In 2005 composer Arvo Pärt said: “Playing one tone really well is enough”. In other words, it is sufficient to play one tone 'beautifully'. I agree with that. All musical efforts are focused on the sound itself. Although I studied classical music (piano and drums), it’s the electronic sound that inspires me. Synthesizers are the epitome of new sounds and exciting tonal spheres. Today, many companies produce high-quality - excellent! - synthesizers: Doepfer, Cwejman, MacBeth, Moog, GRP,, COTK, Studio Electronics, John Bowen and others. It's their products I'm really interested in ... apart from Vintage Synthesizers, which I have been collecting for 20 years. Subsequent to our former websites Bluesynths and Blogasys, Peter Mahr and I have now created GreatSynthesizers. We hope you like it.


  1. George Beacroft

    I have a gem S1 having trouble with one of the speakers intend
    to replace it ( the speaker ) please your comments on this
    instrument have been very pleased with it since I bought it new
    early nineties

  2. John Carpenter

    I live in New York and I own S3 and Equinox61 synths for a long time.

    I think that Equinox61 is sonically is better, almost like an Analog sounding synth with digital controls. S3 has an older digital sound, which is also interested.

    My vote goes to Equinox which is the best digital synth ever manufactured, better than relative Kurzweil or Roland workstation models.

  3. Theo Bloderer

    … thanks for sharing your experience – thumbs up for the Equinox! What a shame GeneralMusic is no longer in existence …

  4. I have a S2 Turbo for about 17 years now without any major problems except a broken key . I sent it to some service for repair and they told me to not sell the synth ever. New synths have different keybed construction and the material (rubber?) has to be replaced after a few years, while GEM S2/S3 have some construction without any rubber and the service man said something like this keyboard will keep working for a very long time…
    But to be honest, I use it only as homestudio masterkeyboard, no gigs, no frequent transportations…

    > Stereo-outputs plus 4 single (sadly mono) outputs
    I think this is not true – you can also configure the mono outputs as stereo pairs – at least according to the manual.

    I have to figure out how to get those S2 sound images to floppy on Win7 64bit… OmniFlop should work hopefully!? Any experience?

    Also was anyone able to make a good supersaw simulation on this synth?

  5. Hi- don’t know if you ever found an S 3 yet- but I just noticed your post and I know they are hard to come by. I have an S3 Turbo I bought new- and was looking to sell it. I have a tone of software with it, video instruction manual, original manuals and box. Keyboard is in decent shape- never used on gigs, just home recording. Let me know if you would be interested. I live in the US.

  6. Hi Bill- Left the same post below also: I have an S3 Turbo with a ton of software that I have been thinking about selling. I bought it new.
    I have original the original manuals, video instruction manual, a ton of software- sounds etc. , and the original box. Keyboard is in decent shape and plays well. Let me know if you haven’t found one and would be interested. I live in the US.

  7. Hi, I own a GEM S3 Turbo for 22 years. Great keyboard used most as a midi master keyboard and mixed the acoustic sounds with the Roland JV1080. I read many forum topics about leaking batteries and many had replaced them, so did I. After that, the keyboard apparently loses its OS. Many asked for a OS disc. So am I, up to now nobody seemed to get any response on this, or there are no OS discs available? Can somebody please help to get me a OS disc. I’m Dutch, my email adress is tonnysnijders59 (at)

    Many thanks in advance


  8. Theo Bloderer

    … hello Tonny

    I’ll have a look, will send you an email …

    cheers, Theo

  9. Hi Theo,

    I received the mail, many thanks in advance.


  10. Theo, did you get a chance to look at the OS disc?

    Regards Tonny

  11. Still interested in purchasing
    the s2 turbo keyboard.

    Email, text or call me at

  12. HaniaSelim

    Hi all,
    I need to buy GEM S2 TURBO. Could you please help me find one in reasonable condition either in Europe or in USA?
    I appreciate your support.
    Thank you and best regards,

  13. Hi from Italy!
    My S3 turbo has the same problem.
    It is caused by the oxidation of some contacts on the main board (due to the leaking battery).
    This is not an os problem.
    After replacing the battery, I turn on the synth but I can hear no sound.
    But if I detach the display controller and I turn on again, the synth is working! But it very difficult to use it, because you can’t see what you are doing on the display…
    The solution is: clean the mainboard and check its contacts

  14. Felipe

    Hi all !! I have a GEM SX2 like new !! but i cant find info about it, i would like to sell it because its not my kind of keyboard …. or i can trade it for other synths like korg, moog, ensoniq …. Can anyone give me an orientation about the value? Thx a lot.

  15. Panu Talus

    Hi Theo. Maybe you don’t remember but I have got the scans of original Sound-On-Sound review of S-serie which was too early for online view so now anyone can read it. It’s very promising review which makes it sad how the synth ended being flop product. Besides the SOS review there’s also ads, schematics and floppy images of all original GEM disks and compatible samples from other brands:

  16. Theo Bloderer

    … superb, Panu – thanks a lot! That material may never (!) get lost … I’ll add the link to the review … Cheers, Theo



  18. Hi all:) if someone somewhere has a turbo kit for sale I’d be very interested in buying it :) best regards Lars

  19. Maybe if you are just using the gem as a Motherkeyboard you may as well uninstall the turbo kit.. (and sell it to me;)))

  20. Problem solved:) I disovered by disassembly that it was in fact already installed:)
    best regards

  21. victor tolentino

    Im looking to buy a general music sk760 and w8 se where can I buy these two keyboard? contact me ASAP thank you

  22. I had a dead GEM S3 Turbo. I replaced the leaking battery, it did not help. Also replaced Some parts around the battery, no cure. At last I bought e new(!) cpu board. It helped. Now my display freezes after a while playing the instrument. I still can play it, but the display does not react at all. If I switch it off and on again, the display is blank with Some blue lines. I checked the controlller board, but that seems to be fine looking at it. It looks like when getting ‘warm’ the refreshing gets disturbed. May be Someone recognises it and can help me. I’m not an electrician, but it may be just a small component causing this problem. When the instrument has been switched off for a couple of days, it starts working again. But when playing for a short time the screen freezes again. Many thanks in advance for your help.


  23. victor tolentino

    want to by a wk8 se or sk76 keyboard whats my next step thank you

  24. I am having similar problem with the display.

  25. Does anyone know if s2 turbo disk recordings can be salvaged and transferred to some other midi device?

  26. Still interested in purchasing
    s2 or s3 general music turbo keyboard
    located in US
    call 240-350-4822 – Bill

  27. A completamento della descrizione del progetto S2 e S3 voglio segnalare che il design è stato affidato allo studio IDEA di Marcello Gennari di Pesaro che si è confrontato e coordinato nel corso dello sviluppo con gli ingegneri che stavano elaborando hardware e software

  28. Karla Silvana Velani

    Olá, eu tenho um sx3 e ele não está funcionando, gostaria de saber onde tem assistência técnica?

  29. Grazie per aver completato l’informazione indicando il l’indirizzo del mio sito

  30. ola quero saber se agem ainda fabrica teclado arrangadores 6/8 eu eu stou procurando um eu vi uma vez genesyspro nunca mais vi se for atendido agradeço valeuu

  31. Larry Lockwood

    Do you know where I can get the floppy disk (or disks) for the S3? I do not have any disks with the keyboard and would like to have the disks to change sounds etc.

    Thank You …

  32. Lars Hauge

    Hi. I have an s3 turbo that won’t boot up.. and I’m very frustrated about it because this really is my favourite synth ever! The guy I bought it from had stored it for several years. It worked fine when I first powered it up but after 10 min it started smoking and making a buzzing noise from inside the synth. I of course unplugged it and ordered the right nicad battery for it but it still won’t boot up. Even the technician whom I’ve asked to repair it can’t figure out what is wrong. Is it possible that the turbo kit is causing the problem? And can it be removed? Or can you recommend a technician (in denmark or at least northern Europe ) best regards

  33. Theo Bloderer

    … hello Lars

    I believe any repair of the S3 will cost more than buying another one second hand … However, I’ll send you an email and we’ll talk about it … The S3 is such a brillant instrument, I can really imagine it’s your favourite synthesizer …

    Will contact you – cheers,

  34. Lars Hauge

    Hi. Thanks a lot for the reply ? I’ll look forward to receiving your mail? maybe you can repair it yourself? Or a part of it if I send it to you?

    Best regards and thank you!

  35. Hi, Theo, do you know where I can get the floppy discs for the S3, please. but just the music so I can listen to the keyboard as I don’t play. Thanks, Graham.

  36. Alan Crombie

    Hi Theo, -I know your review of the S3 was many years ago now, but what a great job anyway!

    I own an S3, (1992) which is non-turbo, and still functions in all respects. I’m kind of being forced to downsize, so might have to (regretfully) sell it. Is there still a following for the instrument out there?

    Thanks, Alan

  37. Theo Bloderer

    … hello Alan … great to hear your S3 is up and running! Sadly it’s only of limited value on the secondhand market. In Italy, the S3 is traded for approx 300 Euros, in Germany it’s only worth slightly more. So, I guess 250 – 350 Euros is probably all you will get for this wonderful instrument (regardless of its “polyphonic” aftertouch, its high-quality 76-note keyboard and its superb sound machine) … Cheers, Theo

  38. Alan Crombie

    Hi Theo,

    OK, thanks. If only I was in Europe. (I’m in the Mid-East). Ah well, see if there’s anyone interested in the local market. Thanks for your reply.

    Best wishes.


  39. Hi Theo,
    Thanks for writing such an excellent and deep review. It’s great find some other people that appreciate such an awesome underrated synth. I’ve got an Equinox, and also an S2 & S2 Turbo. Sadly, both S2’s need repair … the battery and OS. I read through all the comments but wasn’t quite clear, do you by chance have the OS available for the S2? If so, I would love to try and repair my synths and get them working again. Nothing sounds quite like the S2.
    Kind regards,

  40. Mr Vusi Vilakazi

    Hello Sir/ Madam
    I would really Love to replace my FLOPPY DRIVE in my old (WK 3-GENERALMUSIC WORKSTATION KEYBOARD)
    to a USB FLOPPY DRIVE EMULATOR, So that i can use a USB MEMORY FLASH DRIVE TO BOOT IT: Since there are no more “Blank STIFFY FLOPPY DISC” TO BUY …..
    Where and how can i get a ” GOOD ” REPLACEMENT ???


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