Jen SX1000

“Cosmetically it’s in good condition for its age with a few surface marks but nothing major. A few knob caps are missing too.

The synth plays and works fine however quite a few of the knobs are scratchy when turned. Every knob does what it is supposed to do but as I say some scratchy noises happen when they are moved – I’m not sure if a good clean would fix this or not.”
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Jen SX1000

“This is a very vintage synth. It does have some crackle on the pots. Everything works. Some blemishes and wear on paint.

Does very good PWM lead sounds and Square Basses among other things. Highly modifiable synth if that’s your thing.” Click here to visit listing on eBay

Jen SX1000

“Jen SX 1000 Vintage Monophonic Synthesizer. Made in Italy. Sounds and looks awesome. This machine has been gone through thoroughly by a tech last year and is completely working. No missing knobs or damage – a few scrapes and nicks, superficial corrosion and missing color button tops. A back-up oscillator chip is included in case the current goes out in the future. The small chip underneath one of the keys shown in the photos doesn’t affect play and isn’t visible from any other angle.” Click here to visit listing on eBay

Jen SX1000

“Jen SX1000 in working order.
All the keys and all the knobs are fully operational.
The fascia has some age deterioration as can be seen in the pictures.
There are a number of coloured caps missing from the control knobs which are all original and otherwise complete.
Prior to my ownwership it had been modified to include an internal amplifier and speaker which I had removed and put back to original when I had it serviced. The holes that were drilled to act as a speaker ‘grill’ are still there, as seen. There are a few marks and chips but none of this affects the operation.
It comes with it’s own purpose built wooden carry case. The case is lined with carpet underfelt which has become discoloured and could do with replacing.
I have fired it up and played with all the knobs and keys and all seems fine. The output level pot is a bit scratchy in operation but it’s been stored in it’s case unused for about 15 years so a bit of use may clear that.” Click here to visit listing on eBay

Jen SX1000

“Funky little Jen synthesizer received from a clearance. Not entirely sure of the complete workings of it but seems to work absolutely fine. All controls do something & handily has these cardboard guides to tell you where to turn the knobs to which helps. Couple of caps missing & controls may need a clean but in good general condition. No buy it now price as not sure of worth.” Click here to visit listing on eBay

Jen SX1000

“Here’s a great little keyboard in fantastic condition, especially considering it’s been around for about 40 years! As well as retaining all the shiny coloured caps that usually seem to go missing from the knobs and switches, it even still has the cardboard templates that feature suggested settings.
There are a few crackly pots that could probably do with a blast of switch cleaner, but every key works just fine and it makes some great noises. I’m no synth expert, so feel free to come and have a look/play and maybe someone can tell me what all these controls do!
You will not find a more complete (and shiny) example of this, which I’m told is becoming a very rare and sought after instrument.” Click here to visit listing on eBay

Jen SX1000

“Lovely little JEN SX1000 that has seen a major refurb to get it into really nice condition.

All the electrolytic capacitors have been replaced with new but most importantly all the horrible old crackly potentiometers have gone to be replaced by very high quality new items. None of the pots make any crackles anymore and the JEN works just how it should. New knobs have been fitted to match the new potentiometer spindles and a headphone amplifier has been added to allow practice without an amp.

The SX1000 was many peoples first synthesiser back in the early 80’s and its sounds still hold a fond place in the hearts of many. They used to be everywhere but are getting increasingly hard to find these days.

Cosmetically this is clean and tidy but its does have age related knocks on the case and the lettering on frequency control have been rubbed away and the paint has needed touching up in that area.” Click here to visit listing on eBay

Jen SX1000

“Model: SX1000
MPN: Does Not Apply
Serial: 05767

Cosmetic Condition: Item is in used condition with marks and scratches on the housing. Unit has some missing screws on the back.

Functional Notes: Unit tested to power, audio output and all keys are responsive.

Includes: Comes as pictured, no additional accessories included.”
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Jen SX1000

“I dont mind admitting I have not got a clue how to use this, all I can tell you is all the keys work and when turning the knobs they all do something to the sound.

It is in a very good used condition considering its age, it does have some small age related marks and signs of use but nothing that I think needs pointing out. It comes with its original manual but nothing else is included in the sale.” Click here to visit listing on eBay

Jen SX1000

“Hi, here I have for sale a used Jen SX1000 Vintage Analogue Synthesizer.

This mono-synth was made in Italy by Jen and in production between 1978-1982. It has a lovely sound and I personally love the pulse width modulation. Unfortunately I am having to sell due to the amount of room I have and for financial reasons, otherwise it would be a keeper!

It has recently had all of the pots cleaned and they function perfectly, no scratchy pots on this one, the keys all function as they should too and it plays really well for a synth around 35+ years old.

Cosmetically it has 8 of the coloured knob caps missing, this is very common with the SX1000. The keys are not as white as they once would have been due to age. It does have some marks and scratches on the unit but nothing to major, I have pictured a slight dent above the ‘n’ on the rear. Also some very superficial (and common) surface rust marks to the chassis. The mains lead is in great condition.” Click here to visit listing on eBay

Jen SX1000

“Great mono analogue synth for newbies or pros who want something different and don’t want pay silly prices that other brands go for. Nice build quality. Two of the pots are a bit noisy when being turned, but all overall in excellent working order.” Click here to visit listing on eBay

Jen SX1000 Project Machine

x1000 “you are bidding on a Jen synthetone sx1000. Firstly: this doesn’t power on. A few years ago it did the same thing and came back to life after a month or so but no joy this time. Have tried changing the fuse but didn’t work and that’s about the extent of my expertise. It may be something you can fix easily and in which case this is a bargain for a fantastic sounding analogue monosynth. The pots were a bit crackly but functioned when it was working so a good clean might help. ” Click here to visit listing on eBay

Jen SX1000

jensx1000 “Had this for a few years now and it is a great synth to learn on, however I haven’t used it for a few years so it’s up for sell.

Overall, it’s in really good condition with only light cosmetic wear and a few knob caps missing.

I’ve fitted an IEC connector on the rear so it can be used with a mains lead, plus I’ve replaced some of the capacitors in order to improve it’s tone. I’ve also given the noisy pots a clean with some play and they’re now sounding really good.” Click here to visit listing on eBay

Jen SX1000

sx1000 “This keyboard is in full working order and was serviced by Synth Professor ( in August 2012. It has also had the original short power cable replaced with a longer one.

Generally in good condition with only the odd scratch and mark on the wooden exterior. As you can see from the photos, 12 of the 24 coloured labels on the controls are missing but this is only a cosmetic issue. ” Click here to visit listing on eBay

Jen SX-1000

sx1000 “It obviously shows signs of wear, and this is understandable, as it has been on earth longer than myself! Made in 1978. (The synth not me)

The pink noise generator can sometimes take a bit of persuasion to get into place, but i am told this is just a £1 chip replacement from maplin. Not brave enough to open her myself! ” Click here to visit listing on eBay

Jen SX1000

sx1k “Offering in VERY GOOD CONDITION…

a Vintage JEN Synthetone SX1000 Monophonic Analog Synthesizer
with power cord and a one-page Service Manual Schematic (pdf file)
and a 13-page Midi Upgrade Installation and User Manual (pdf file).

Made in Italy. Produced from 1978 to 1982.
A low cost alternative to an ARP or Moog synthesizer with a similar big fat analog sound.
It has a 3 octave 37-key keyboard and has been tested thoroughly and everything seems
to function as it should. Eight of the twenty-four Metallic Colored Knob Caps are missing.
The two veneered wood end caps have some bumps, minor wear and chipping.
One key is chipped underneath (hard to see and does not affect play).
There is quite a bit of superficial rust spots on the back black panel. See pictures.” Click here to visit listing on eBay

Jen SX1000

jen sx1000 “Vintage JEN SX1000 Vintage Analog Monophonic Synthesizer (1978)

Great Analog Synth, originally Italian built, internal transformer modified to work both 120V & 240V without need for switch or external step down transformer.

Fully functional, all keys, knobs, jacks, in full 100% order. A very capable synth on its own with a myriad of filter & midi mods available online (not included.) Very slight surface rust on rear panel which has not changed or degraded in the 22 years I’ve owned this synth. Power throw switch illuminates bright red when synth is on.

Wood cheeks show minimal wear, really not bad for a 35 year old instrument. A number of colored knob decals have fallen off over the years, very easy and inexpensive to replace with DIY adhesive foil or decals (instructions online, not included) none of which effects functionality.

Auction includes:

– JEN SX1000 Analog Mono Synth
– Power cable
– 2 prong to 2 pole power adapter ” Click here to visit listing on eBay

Jen SX1000

sx1k “Jen Synthetone SX1000

I have tried this through an amp and it sounded really good although I dont mind admitting that I’m not really sure how to use this but all the keys work, the knobs all turn, I have messed around with the functions and all of them seem to do something.

It is in a very good used condition with just a couple of scratches to one or two of the knobs and just a little tarnishing to the metal at the back of the unit.

I try to describe my items to the best of my ability and add the appropriate pictures but there If there is any other information you require then please feel free to ask.” Click here to visit listing on eBay

Jen SX1000 Project Machine

sx1000 “Whilst it has obviously seen better days and is in need of TLC from someone who knows what they’re doing, this one is definitely rescuable. The issues as stands, as far as I can tell are:

• one knob is broken off through the shaft, so will need a new pot. Still have the knob though.

• Somewhere between a quarter and a third of the keys are dead. A pretty easy fix, this.

• One key is broken as pictured.

• Keyboard slanted; generally needs attention as per the above.

• It has clearly had some kind of retrofit in its life, but I have no clue as to what, or whether that element works at all.

• Cosmetically a bit of the usual Jen mottling, and scuffs and nicks to the wood. Keys are grubby too; suspect a good clean when the keyboard issues are address wouldn’t go a miss!

The good point however are that is still sounds pretty lovely – filter and envelope seem to work fine. Noise generator a bit hit and miss, but glide, vibrato etc all working.

A bit of an ugly duckling as stands, but potentially great again; used by The Prodigy, Ladytron etc. just needs someone to give it the love it needs. ” Click here to visit listing on eBay