Yamaha SK50D
(image courtesy of Yamaha )
Released: 1980
MSRP: Y619,500 ($3875US)
Synopsis:
Adds lower (preset only) and bass organ sections and dual manuals
Architecture Class: Conventional (subtractive).
Ebay Description:
The Yamaha SK50D is a 61 key, 7 voice analog ensemble synthesizer, featuring organ, string, and poly-synth sections, dedicated organ and string/synth brilliance, tremolo, vibrato, string and mix volume pedal inputs, and dedicated Monosynth, Polysynth, Organ, and tone cabinet outputs. The Polysynth section features a slow attack button, release, and a resonant low pass filter with dedicated ADSR envelope. The Monosynth section features a resonant low pass filter, ADSR envelope, LFO, portamento. The organ section features 9 stops and an (AR) envelope.
Physical
Form Factor
Dimensions
Weight
Audio Input
Audio Output
Communication Port
Control Input
Control Output
Switch Input
Power
2x 61 keys
W:1128mm(44.375in)
H:237mm(9.375in)
D:642mm(25.25in)
?
no
mix
Bass
Polysynth
Organ
Monosynth
tone-cabinet(11pin)
no
(Monosynth) CV/gate bass-pedal(BP2)
keycode
Monosynth:CV/gate
portamento
sustain
AC (60W)
Interface
Compatibility
Multitimbral Memory
Program Memory
External Storage
External Programming
UI Input
UI Output
-
N/A
lower-organ:2
upper-organ:3
polysynth:3
string:2
(preset)
no
no
dedicated sliders/knobs
LED
Architecture
Multitimbral
Polyphony
Unison
Architecture
3 (monosynth, organ and polysynth can be split)
7
split:7+7+1+1
no
VCO->VCF->VCA+
VCO->VCF->VCA+
VCO->VCF->VCA+
VCO->VCF->VCA
Output
Effects
Pan Modulator
Volume Modulator
Headphone
"Ensemble" chorus
no
EG
Tremolo
pedal
yes
Control
Arpeggiator
Arpeggiator External
Sequencer
Sequencer Memory
Sequencer External
Continuous
Program Change
no
N/A
no
N/A
N/A
pedal
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
Organ
analog
square?
click:3
1' 1.3' 1.6' 2' 2.6' 4' 5.3' 8' 16'
(mix)
no
no
Vibrato
no
Polysynth
analog
variable
saw/square
synth:8-16'
string(mix):8'16'
no
no
Vibrato
no
Monosynth
analog
pulse
saw
4-64'
no
PWM:MonoVCFEG|LFO
portamento
auto-bend
Vibrato
no
Bass
analog
square?
pluk
8' 16'
no
no
no
no
Filter
Name
Signal Class
IC
Resonant
Shape
Frequency Modulator
Resonance Modulator
Shape Modulator
Organ-Brilliance
analog
?
no
band pass (+-7dB at 5kHz)
no
no
no
Polysynth-Brilliance
analog
?
no
band pass (+-12dB at 5kHz)
no
no
no
PolysynthVCF
analog
?
yes
12dB low pass
saw8':6dB band pass
PolyVCF-EG
no
no
MonosynthVCF
analog
?
yes
low pass
Aftertouch
MonoEG
LFO
no
no
Envelope
Name
Level
Rate
Loop
Polarity
Trigger
Level Modulator
Rate Modulator
OrganEG
-
DR
no
no
key
no
no
PolysynthEG
-
switch:A
R
no
no
key
no
no
PolyVCF-EG
sustain
attack
decay
release
no
no
key
no
no
MonoEG
sustain
attack
decay
release
no
no
key
no
no
BassEG
-
R
no
no
key
no
no
LFO
Name
Waveform
Delay
Polarity
Sync
Delay Modulator
Level Modulator
Rate Modulator
Vibrato
triangle?
yes
no
no
no
no
no
Tremolo
triangle?
no
no
no
no
no
no
LFO
triangle?
no
no
no
no
Aftertouch
no
