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Yamaha CS-50

(image courtesy of Yamaha)

Released: 1977

MSRP: Y404,250


Simple polysynth with aftertouch and preset memory Architecture Class: Conventional (subtractive).

Ebay Description:

The Yamaha CS-50 is a 49 key (aftertouch sensitive), 4 voice polyphonic analog synthesizer, featuring a single oscillator (sine, saw and pulse waveforms), noise, resonant low and high pass filters, dedicated filter (IAADSR) and amp (ADSR) envelopes, LFO (saw:down|up, sine, square, S/H, external waveforms), ring modulation, and 13 presets.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
49 keys W:98.1cm(38.875in) H:25.2cm(9.375) D:51.1cm(20.125in) 35kg(79.4lbs) no mono no no no no AC (55W)


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
- N/A preset:13 no no dedicated sliders/knobs LED


Multitimbral Polyphony Unison Architecture
no 4 no VCO->VCF+sine->VCA->ring-mod


Effects Pan Modulator Volume Modulator Headphone
no no aftertouch LFO VCA-EG pedal yes


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A no N/A N/A brilliance-slider portamento-slider resonance-slider sustain-slider no


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


Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
VCO analog pulse saw sine +1/-2 octaves no PWM LFO portamento no
Noise analog noise no no no no no
RMO analog sine - no ring RMO-EG no


Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
VCF analog IG00156 yes low and high pass aftertouch LFO VCF-EG no no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
RMO-EG sustain AD no no key no no
VCF-EG IA attack decay release no no key no no
VCA-EG sustain attack decay release no no key no no


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO saw:down|up sine square S/H external no no no no aftertouch no
Conventional Models
SY-1 SY-2 CS-10 CS-30 CS-30L CS-50 CS-60 CS-80
CS-5 CS-15 CS-15D CS-20M CS-40M CS-70M CS-01 SK10
SK15 SK20 SK30 SK50D SY-20 AN1x