Sequential_Circuits Prelude
Prelude
Released: 1982
MSRP: ?
Synopsis:
Rebadged Siel Orchestra2
Architecture Class: Conventional (subtractive).
Ebay Description:
The Sequential Circuits Prelude is a 49 key, analog ensemble synthesizer, featuring brass (trumpet/trombone), string (cello/violin/mute/percussion), reed (organ/accordion/musette), piano (piano/clavichord/honky tonk). The brass section has a variable attack and a resonant filter, while the piano section has a variable decay and the string section has a variable attack and release. Sounds can be further shaped by vibrato, chorus, and a 5 band EQ.
Physical
Form Factor
Dimensions
Weight
Audio Input
Audio Output
Communication Port
Control Input
Control Output
Switch Input
Power
49 keys
?
?
no
high
low
no
volume (5 pin DIN)
no
sustain
wired
Interface
Compatibility
Multitimbral Memory
Program Memory
External Storage
External Programming
UI Input
UI Output
N/A
no
4 presets
no
no
buttons/sliders
LED
Architecture
Multitimbral
Polyphony
Unison
Architecture
4
full (divide down osc)
no
VCO->VCF->VCA
Output
Effects
Pan Modulator
Volume Modulator
Headphone
chorus
no
EGs
pedal:(5-pin-DIN)
no
Control
Arpeggiator
Arpeggiator External
Sequencer
Sequencer Memory
Sequencer External
Continuous
Program Change
no
no
no
N/A
no
no
no
Keyboard
Key Pressure
Chord Memory
External Control
External Sustain
Key Scaling
Velocity Curves
no
no
no
pedal
no
no
Source
Name
Signal Class
Waveform
Octave Range
Amplitude Modulator
Harmonics Modulator
Pitch Modulator
Wave Assign Modulator
Brass
analog
saw
-
no
no
no
Piano
analog
mix
-
no
no
no
Reed
analog
mix
-
no
no
no
String
analog
saw
-
no
no
no
Filter
Name
Signal Class
IC
Resonant
Shape
Frequency Modulator
Resonance Modulator
Shape Modulator
Brass
analog
opamps
yes
low pass?
no
no
EQ
analog
opamps
no
5 bands (250Hz 500Hz 1kHz 2kHz 4kHz)
no
no
Envelope
Name
Level
Rate
Loop
Polarity
Trigger
Level Modulator
Rate Modulator
BrassEG
-
attack
no
no
no
no
no
PianoReedEG
-
decay
no
no
no
no
no
StringEG
-
attack
release
no
no
no
no
no
LFO
Name
Waveform
Delay
Polarity
Sync
Delay Modulator
Level Modulator
Rate Modulator
LFO
triangle
yes
no
no
no
no
