Curtis CEM
Curtis CEM chips are analog chips used in many synthesizers.
Curtis Electromusic Specialties, founded by Doug Curtis (d. 2007), developed a family of signal-processing products for electronic music synthesizers and audio equipment.
SSM and CEM
Chips list:
- SSM
- SSM = Solid State Microtechnologies by solid state music
- SSM2013 Voltage Controlled Amplifier
- SSM2014 Voltage Controlled Element
- SSM2015 Microphone Preamplifier
- SSM2120/22 Dynamic Range Processor/Dual VCA
- SSM2024 Quad Current Controlled Amplifier
- SSM2033 Voltage Controlled Oscillator
- SSM2044 4-Pole VCF
- SSM2045 Music Voicing System
- SSM2047 Music Voicing System
- SSM2056 Voltage Controlled ADSR type Envelope Generator
- CEM
- CEM = Curtis Electromusic Specialities
- CEM3310 ENV ADSR
- CEM3312 ADSR + VCA
- CEM3318 ADSR but microprocessor controlled
- CEM3320 24dB/Oct. Filter (multi)
- CEM3328 same but LPF only
- CEM3330 exp/lin VCA
- CEM3335 exp VCA
- CEM3340 VCO (Saw,Tri,Pulse)
- CEM3345 VCO (Saw,Tri,Pulse) with comparator
- CEM3350 12dB/oct Multimode Filter x2 (no notch)
- CEM3360 VCA x2
- CEM3365 DAC
- CEM3371 Envelope x2
- CEM3372 24dB/oct. Filter, Mix, VCA
- CEM3374 VCO x2 (PWMable Pulse, Tri, Saw)
- CEM3378 24dB/oct. Filter, Mix, VCA but microprocessor controlled
- CEM3379 24dB/oct. Filter, Pan, VCA but microprocessor controlled
- CEM3381 VCA x2 linear
- CEM3382 VCA x2 log
- CEM3385 24dB/oct Filter (LoFi)
- CEM3387 signal processor 3-4 pole cascade Filter, VC Pan/VCA
- CEM3389 signal processor 4 pole Filter, VC resonance, VC Pan/VCA
- CEM3391 Microprocessor Controllable: VCF,VCA,Env (ADSR)
- CEM3394 Microprocessor Controllable: 1 Synth Voice: VCF,VCA,Env (ADSR),VCMix
- CEM3396 Microprocessor Controllable: Wave-Shaper x2 - VCF,VCA
- PA381 VCA (low noise)
- PA382 VCA (low noise)
- PD508 S/H (8x)
- 5508 predecessor of PD508 same function
- 5530 30ch multiplex sample&hold (Prophet VS)
SSM CEM chips in synthesizers
At least these synths contain SSM CEM chip(s):
- Akai
- AX80: 6x CEM3372 uP Signal Processor -CEM3372 Filter/Mix/VCA
- AX60: 6x CEM3394 uP Voice
- Banana
- Banana created by Synthesizerstudio Bonn, since 1999 the SSB is closed..
- Poly Synth: 12x CEM3310 EG, 12x CEM3340 VCO, 12x CEM3360 Dual VCA, 6x SSM2044 VCF
- Buchla
- 296 Programmable Spectral Processor: 8x SSM2020 VCA, 1x CEM3360 Dual VCA
- Cheetah
- Cheetah MS6: 6x CEM3396 VC Waveshaper
- Crumar
- Spirit: 2x CEM3340 VCO, 2x CEM3350 Dual VCF, 3x CEM3360 Dual VCA
- Bit 01: 6x CEM3328 VCF Late Models, 6x SSM2044 VCF Early Models
- Trilogy: 6x CEM3310 EG, 6x CEM3320 VCF, 6x CEM3330 Dual VCA, 1x SSM2020 VCA
- Doepfer
- A107 Morph. Filter: CEM3379
- A121 Multi Mode Filter/A122 LPFilter/A123 HPFilter: CEM3320
- A-106-6 XP Filter: CEM3379
- A-109 VC Signal Processor: CEM3379
- A-111-1 High End VCO: CEM3340
- A-130 VCA (linear)/A-131 VCA (exp.)/A-134 VC Panning: CEM3381
- possibly: A111-2 Dyn. VCO uses CEM3394
- Dark Energy , Monophonic Synthesizer: CEM3394
- Elka
- Ensoniq
- ESQ1: 8x CEM3379 VC Signal Processor Filter/Mix/VCA, 1x CEM3360 Dual VCA, 4x SSM2300
- Mirage: 8x CEM3328 VCF
- SQ-80: 8x CEM3379 VC Signal Processor - Filter/Mix/VCA, 1x CEM3360 Dual VCA, 4x SSM2300
- Fairlight
- Fairlight CMI II: 8x CEM3320 VCF in earlier versions, 8x SSM2044 VCF in later versions
- Fender / Rhodes
- Chroma: 8x CEM3350 Dual VCF, 8x CEM3360 Dual VCA
- Polaris: 6x CEM3374 Dual VCO, 6x CEM3372 uP Signal Processor - CEM3372 Filter/Mix/VCA
- Kawai/Teisco
- K3: SSM2044 as in the K3m
- SX-240: 8x SSM2044
- Keytek
- CTS-2000: 1x CEM5530 30ch S/H, 8x CEM3389 VC Signal Processor
- Korg
- MonoPoly: 4x SSM2033 VCO, 1x SSM2044 VCF
- PolySix: 6x SSM2056 EG, 6x SSM2044 VCF
- Poly 61: 6x SSM2056 EG
- Linn
- Linndrum: 2x CEM3320 VCF, 1x CEM3360 Dual VCA
- Moog
- MemoryMoog: 19x CEM3340 VCO, 26x CEM3360 Dual VCA, 12x CEM3310 EG
- Oberheim
- OB8 & OBX-a: CEM3360 Dual VCA, 16x CEM3340 VCO, 16x CEM3310 EG, 16x CEM3320 VCF
- OB-SX: 2x CEM3340 VCO, 1x CEM3320 VCF, 2x CEM3310 EG, 1x CEM3360 Dual VCA
- Matrix 6 & 6R /// Matrix 1000 Both Matrix use 6x CEM3396
- Xpander: 3372 Signal Processor - CEM3372 Filter/Mix/VCA, 6x 3374 Dual VCO, 2x 6809 processors, CEM3320 VCF or equivalent, CEM3372
- OB-1 (ame as OBI or OB-I): 2x CEM3310 EG
- Prommer: 1x CEM3328 VCF
- PAiA
- Proteus: 2x CEM3340 VCO, 1x CEM3320 VCF, 1x CEM3310 EG, 1x CEM3330 Dual VCA
- PPG
PPG Wave (2.0) series used the SSM filter
- Wave 2.0: 8x SSM2044 VCF
- Wave 2.2 / 2.3: 4x CEM3320 VCF, 4x CEM3310 EG
- Roland
- SH101 and MC202: 1x CEM3340 VCO, CEM3360 Dual VCA
- MKS-20: 5x CEM3360 Dual VCA
- Jupiter 6: 12x CEM3340 VCO, 6x CEM3360 Dual VCA
- MKS-80 (serial #511800 up, later models): 4x CEM3360 Dual VCA
- RSF
- Kobol Expander I: 2x SSM2050 VCO, 1x SSM2040 VCF
- Sequential Circuits / Dave Smith Instruments
- Evolver series: Curtis for Filters
- PROPHET 5: the first Prophet 5 series used the SSM filter, later they were changed to CEM
- Prophet 5 Rev 1 & 2: 11x SSM2030 VCO, 5x SSM2040 VCF, 10x SSM2050 EG, 21x SSM2020 VCA
- Prophet 5 Rev 3: 11x CEM3340 VCO, 10x CEM3310 EG, 5x CEM3320 VCF
- Prophet 10: 22x CEM3340 VCO, 20x CEM3310 EG, 10x CEM3320 VCF
- Prophet 600: 12x CEM3340 VCO, 6x CEM3372 VCF/VCA, 4x CEM3360 Dual VCA
- PRO-1 (PRO ONE): 3x CEM3340 VCO, 2x CEM3310 EG, 1x CEM3320 VCF
- Prophet T8: 16x CEM3340 VCO, 8x CEM3372 Signal Processor - CEM3372 Filter/Mix/VCA
UPDATE: T8 used 5x CEM3360(4 for polymod 1 for volume)
- Six-Trax: 6x CEM3394 uP Voice, CEM3372 Filter/Mix/VCA
- MAX: 6x CEM3394 uP Voice
- Split8: 8x CEM3394 uP Voice
- Prophet VS: 1x CEM5510 Fast Sample/Hold, 1x CEM5530 30ch S/H, 8x CEM3382 Dual Low Noise VCA, 8x CEM3378 VC Signal Processor - CEM3372 Filter/Mix/VCA
UPDATE:
VS used 2x CEM5530,4x CEM5510 (8chan s/h), 2X CEM3365(dual vca for vector mix)
- Prophet 2000: CEM3379 VCF/VCA
- Prophet 3000: CEM3387
- Studio 440: 8x CEM3389 VC Signal Processor, 1x CEM3360 Dual VCA, 1x CEM5530 30ch Sample/Hold
- Siel
- DK600: 3x SSM2020 VCA, 6x SSM2024, 6x SSM2044 VCF
- Opera 6: 6x SSM2024, 2x SSM2031, 6x SSM2044 VCF
- Simmons Drums
- SDS9/SDS1000: 3x CEM3394 VC Synth
- SDS8: 5x CEM3372 VC
- SDS5: SSM2044 - 1x per module
- SDS800: 2x CEM3394
- Solton
- Solton SM100 analogue synthesizer (6 voices)： Each voice uses 2x SSM2056 (ADSR) and 1x SMM2045 (VCA+VCF)
- Steiner Parker
- EVI: CEM3340 VCO -SSM2040 VCF
- Synton
- Synrix: 2x CEM3310 EG, 2x CEM3340 VCO, 2x CEM3350 Dual VCF, 1x CEM3360 Dual VCA
- Waldorf
- Wave: 16x CEM PD508 Multiplexer/S&H, 16x CEM 3387 VCA/VCF
- Microwave1: 8x CEM3387 VCF,VCA,VCP, (later models) 8x CEM3389 VCF,VCA,VCP
See also
- Early clients
- Synthesis & signal processing
External links