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Crumar Stratus


Released: 1982



Similar to a Trilogy without the string section or presets. Architecture Class: Conventional (subtractive).

Ebay Description:

The Crumar Stratus is a 49 key, ensemble synthesizer, featuring polyphonic organ and dual oscillator synth sections, with dedicated outputs. Synth section features a resonant low pass filter, envelope, and LFO.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
49 keys ? 40lbs no Organ PolySynth Signal:saw no filter TouchModulator no sustain sync AC


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
- no no no no knobs/sliders LED


Multitimbral Polyphony Unison Architecture
2 full (paraphonic) no Organ:DCO->VCA PolySynth:DCO1+DCO2->VCF->VCA


Effects Pan Modulator Volume Modulator Headphone
N/A no LFO no


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A no N/A N/A Joy-Stick no


Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
no no no pedal no no


Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
DCO1 digital saw square (alternate) (mix) -1 no no auto-bend Joy-Stick LFO no
DCO2 digital saw square (alternate) (mix) -1 no sync auto-bend Joy-Stick LFO no
Organ digital square? 4' 8' 16' 32' (mix) no no auto-bend Joy-Stick LFO no


Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
Synth analog CEM3320 yes low pass EG LFO pedal no no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
StringEG - attack release no no key no no
SynthEG sustain attack decay release no no key no no


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO square triangle delay attack no no no Joy-Stick TouchModulator no
Conventional Models
Orchestrator DS-1 DS-2 Performer T1 T2 T1-C CPB-1
CPB-2 Trilogy Stratus Composer Spirit Bit One Bit01 Bit99