Jen Electronics SX-1000 Synthetone

Jen SX-1000 Image

The Synthetone SX-1000 is an old Italian basic mono-synth. It has a single analog DCO with three waveforms: sawtooth, square, and PWM (Pulse Width Modulation). There is an analog filter (12dB/octave) with cutoff, resonance, and LFO modulation. There is also a simple ADSR envelope for shaping your sounds. In addition there are also white/pink noise generators a glide effect and a vibrato effect. It's known for fairly stable tuning too. Probably its best sounds are the lead ones, the basses aren't that deep but it sure can scream!

What it doesn't have is MIDI, CV/Gate or any other form of control. MIDI retrofits can take care of this however. Unfortunately there is no patch memory, and there is no way around this limitation. Its knobs are boldly colored and well layed-out for easy hands-on access; but you'll need a Polaroid camera if you want to store your patch settings! Also lacking are an arpeggiator, sequencer, pitch/mod wheels, and effects. Nevertheless, this Italian vintage synth is a very cheap entry-level analog synth that has some unique sounds and characteristics worth checking out if you find one. It's been used by Future Sound of London, LFO, Nexus 21, Altern 8, Eskimos & Egypt, Fillmore, Man Machine, Tim Simenon, Broadcast, Plone, Luke Vibert, Ladytron, Prodigy and Herb Legowicz of Gusgus.

Check Jen Electronics SX-1000 Synthetone Prices on eBay

The link above will take you to a search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

Related forum topics

Comments

Are you looking to buy or sell a Jen Electronics SX-1000 Synthetone? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

42 Visitor comments
BN
February 14, 2011 @ 7:46 am
@Fred, I got mine for 100 quid and use it all the time! I find it pretty versatile when I put the time in and mine is half broken (m110 is dying) the thing with these synths now is their prices tend to be that low that younger producers are starting buying these as their first venture into 'Analogue' synthesis (Had to be careful there...) I'd definatly disagree with it being a Novelty device, something like Tenori On is a novelty, This is one of the only still affordable vintage synths, It may not be as powerful as one of the japanese synths from the same time but it does it job, and well.
Lamster
February 6, 2011 @ 5:13 pm
I'll have them ?
gary
November 5, 2010 @ 9:43 pm
I have a yen sx 1000, best white noise box for it's year, only issue was when using the note follow, it failed going down. it's under my sons bed next to a guitar amp I found some time ago. we got it out and after a few mins of repeated key presses it sprung back into life! it had been there unused since 1995! next to my poly six and poly 61! as you may have guessed the korgs have issues! I will sell all of these only to someone who will nurture these as i did! so rare and mean so much to me that ill leave them there for another 15 years! and still wipe clean the battery terminals on the korgs!
Fred
September 22, 2010 @ 4:33 pm
A novelty, it will wear off.
Neil
August 20, 2010 @ 5:25 pm
That'll be me then :) More info here if you're curious: http://www.njohnson.co.uk
I do still have a couple of ready-built modules. Its not too difficult to fit - any decent synth service tech should be able to do it in an hour or two. And it supports pitch bend and mod.wheel (usually routed to filter cutoff).
The stuck pitch problem sounds like the glide oscillator has stopped working. Without it the M110 chip can't change pitch. Turn the glide control a few times, and if that doesn't work you need to open her up and try re-seating the 8-pin chip closest to the glide pot.
And yes, those M110s are very rare. I only have working pulls from conversions I've done. Even VintagePlanet hasn't got any. Unlikely to find an NOS these days.
Nice little synths. When set up properly they have a great sounding filter. Mostly standard parts (other than aforementioned M110). Easy to service and easy to mod as well.
 
Post Comment!
VSE Rating

It’s Good

User Rating

Rated 3.59 (283 Votes)

  • Check Prices on eBay
  • The link above will take you to a search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - Monophonic
  • Oscillators - One DCO (sawtooth, square, pulse-width modulation); 4-octave range (32', 16', 8', 4'); white and pink noise generators
  • LFO - 1 LFO; Vibrato
  • Filter - 1 Low-pass filter, 12dB/octave, with ADSR
  • VCA - 1 ADSR
  • Keyboard - 37 keys
  • Memory - None
  • Control - None (Kenton Midi Retrofits available)
  • Date Produced - 1978 - 1982
  • Resources & Credits
  • Image from the collection of Daniele Marziali found at the Jen Synth Pages

    Thanks to Jesper Odemark for providing some information.

Errors or Corrections? Send them here.