Crumar DS-2

http://elektrotanya.com [Service Manual]

In 1978, Crumar released their first full-fledged synthesizer with innovative features, Crumar DS-2 which had one of the earliest Digital controller oscillators (DCO). Crumar synthesizers are comparable and contemporaneous to Moog synthesizers and other analog synthesizers. In fact, Crumar Spirit synthesizer in 1983 was originally designed by Bob Moog himself, along with Jim Scott (co-designer of minimoog) & Tom Rhea (who wrote manuals of Moog synthesizers). In 1984, they started producing polyphonic synthesizer using DCO under the name of Bit, which were marketed in the US under the name Unique. http://en.wikipedia.org

• Specifications http://www.vintagesynth.com
• 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