Crumar DS-2

Crumar DS-2 Image

The DS-2 is basically a monosynth with an added 44-voice polyphonic strings section. The DS-2 was one of the first synthesizers to use DCOs (digitally controlled osc.) making it stable in tune but maybe not as fat as VCO synthesizers. That isn't to say it can't sound fat...it can. Especially if you use the polyphonic string section and apply some slow LFO modulation to the pitch. This is a very big and good looking synth with a lot of knobs for instant hands-on control. And you don't need a hardcase, it's built into one. Just lift the cover and there it is (smart!).

FYI: This is possibly one of the most unreliable synths when found on the used market! Models almost always have failed components in either the monosynth or polysynth stages. Most frequently encountered are failures of one or both DCOs, or the entire polysynth stage in of itself. Purchase of a DS-2 can be a VERY risky proposition!

What's good about it then? Well it has two nice LFOs, one with S&H and staircase waveforms. You can use either or both LFOs for modulation of Osc 1, Osc 2, VCF and the VCA. Pulse-width can be set manually or modulated by either LFO. The VCF is killer, it has a nice Moog sound in it that fattens up the sound. The two ADSRs are very fast so there's no problem making bass and drum sounds with it. It has an external input for processing other sounds through its lovely filter too. It is used by Cirrus, the Cardigans, Tambourine Studio, and Sun Ra.

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19 Visitor comments
Joseph Franco
March 12, 2014 @ 9:52 am
Hey Patrick, I just ordered a Korg MS10 from your store and plan on buying some more things this week. My DS2 has been fine since I bought it but it's been having various problems recently with the oscillators,filter, and LFO's. I'm in Connecticut and wanted to know if it be worth shipping to you to fix it. If you read this let me know.
Patrick E.
October 16, 2013 @ 11:35 pm
@Romannis1972

I work at a synth company called Switched-On in Austin, Tx. I own a DS-2 and have restored another, so I am very comfortable poking around inside. My DS-2 was completely nonfunctional when I got it. The only thing to worry about is that there are programmed chips in the digital keyboard scanning section. If those go then you are pretty out of luck unless there are parts chips lying around. I need to figure out how to read the data off the chips... Most of the other components are relatively easy to find. Where are you located?
COLDWAR1977
September 12, 2013 @ 3:57 am
Giancarlo Toniutti has used it for the recordings of his first album 'La Mutazione'.
Romannis1972
January 22, 2013 @ 1:40 pm
I have had two of these (the first one died, the second one I still have as it was flat out given to me). I loved the sound of the monosynth! The one that was given to me has a totally failed monosynth section, but the polysynth section is still going. It does sound nice, although I do not use the polysynth section without effects. too bad they didn"t add an envelope section to the polysynth. I have full schematics for it, so I hope one day to find some poor soul who's life isn't riddled with problems enough to take on restoring the monosynth section hahaha...
francesco
November 10, 2012 @ 6:41 pm
crumar ds-2 REUP : http://www.enricobassi.it/digitalsynth2.htm
 
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  • Check Price
  • The link above will take you to an eBay 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 synthesizer section; 44 voice polyphonic string section
  • Oscillators - 2 DCOs
  • LFO - 2 LFOs; LFO 2 has Sample&hold and Staircase waveforms
  • Filter - 1 4-pole LPF with Cutoff, Resonance, ADSR and ENV-amount
  • VCA - ADSR
  • Keyboard - 44 keys
  • Memory - None
  • Control - Gate
  • Date Produced - 1978
  • Resources & Credits
  • Submitted by John Melon and Magnus. Visit their site for more sizers and MP3's.

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