Crumar DS-2
A synthesizer combining a monophonic synth engine with a 44-voice polyphonic strings section, notable for early use of DCOs.
Overview
The Crumar DS-2 is a synthesizer manufactured by Crumar. It features a monophonic synth section paired with a 44-voice polyphonic strings section, offering dual sound capabilities. The "DS" in its name stands for "Digital Synthesizer," reflecting its hybrid design approach. It was among the first synthesizers to implement Digitally Controlled Oscillators (DCOs), contributing to improved tuning stability compared to traditional VCOs.
Specifications
| Synth Type | Monophonic synth engine with 44-voice polyphonic strings section |
| Oscillator Type | Digitally Controlled Oscillators (DCOs) |
| Name Meaning | "DS" stands for "Digital Synthesizer" |
Design
The Crumar DS-2 was one of the first synthesizers to use DCOs, marking an early step toward digital control in analog synthesis. While the oscillators are digitally controlled, there is discussion among users about whether they are fully analog or incorporate digital waveform generation, though definitive technical details are not confirmed.
Market
A serviced Crumar DS-2 is valued around $1,000. Some users note that the build quality is not robust and that the A-series CMOS chips used in the circuitry are prone to failure, which can affect long-term reliability. A service manual and schematic are available, though some versions in circulation may be incomplete.
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