Crumar Polysynths
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Analogue Crazy
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themilford
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Re:
Sorry for the ancient bump... doing some digging and reading, may as well set the record straight.Micke wrote:I believe both the Stratus and Composer use DCO's.
The Trilogy and Stratus use TOS/Dividers... not sure that's quite the same as "DCOs".
The Polysynth section uses the following Curtis Chips:
6x CEM3310 EG, 6x CEM3320 VCF, 6x CEM3330 Dual VCA, 1x SSM2020 VCA
Also, from what I've read the Crumar DS-1 also has a strange sort of "hybrid" DCO as well. Not quite what we know as DCOs in synths like the Junos, Poly-800s and the like.
Bob Weigel sheds a little light here:
http://sounddoctorin.com/synthtec/synarch.htm
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nathanscribe
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Re: Crumar Polysynths
Necropost FTW!
Anyway, yes, Crumar were interesting. The Bit series uses a digital-clock-generated stepped sawtooth which is then shaped by analogue circuitry into square and triangle waves. It shares this idea with the Elka Synthex (both Mario Maggi designs I believe) but the Synthex is higher resolution. The Korg Lambda ES-50 is another unit I've seen working on a variation of this, beginning with top-octave divider technology with octaves summed at different levels to give an approximate sawtooth output.
The Bits sound good, and having 2 LFOs independently routable definitely helps in reducing the static feel of the raw waves.
Anyway, yes, Crumar were interesting. The Bit series uses a digital-clock-generated stepped sawtooth which is then shaped by analogue circuitry into square and triangle waves. It shares this idea with the Elka Synthex (both Mario Maggi designs I believe) but the Synthex is higher resolution. The Korg Lambda ES-50 is another unit I've seen working on a variation of this, beginning with top-octave divider technology with octaves summed at different levels to give an approximate sawtooth output.
The Bits sound good, and having 2 LFOs independently routable definitely helps in reducing the static feel of the raw waves.