Yamaha DX21
(image courtesy of Yamaha )
Released: 1985
MSRP: Y139,650 ($795US)
Synopsis:
Expands the DX9 Program memory and adds velocity (via MIDI) and bitimbral capabilities, while sacrificing some LFO waveforms. Operator EGs lose dedicated stages for ADDSR (pitch EG loses a stage).
Architecture Class: FM.
Ebay Description:
The Yamaha DX21 is a 61 key (8 voice) bitimbral FM synthesizer, featuring 4 operators (8 algorithms) with dedicated (ADSDR) envelopes, a pitch envelope, an LFO (saw:up square triangle random waveforms), 160 presets (32 editable), tape interface, breath-control input, chorus, and MIDI.
Physical
Form Factor
Dimensions
Weight
Audio Input
Audio Output
Communication Port
Control Input
Control Output
Switch Input
Power
61 keys
W:909mm(35.8in)
D:270mm(10.6in)
H:82mm(3.2in)
8kg(17.6lbs)
no
stereo
no
breath-controller MIDI volume-pedal
MIDI
portamento sustain
AC (7W)
Interface
Compatibility
Multitimbral Memory
Program Memory
External Storage
External Programming
UI Input
UI Output
B200
DS55
DX11
DX21
DX27
DX27S
DX100
FB-01
TQ5
TX81Z
V50
WT11
YS100
YS200
32
preset:128
user:32
tape MIDI-SysEx
MIDI-SysEx
mode based buttons
LCD display
Architecture
Multitimbral
Polyphony
Unison
Architecture
2
8 (split:4+4)
no
FM (4 operator, 8 algorithm)
Output
Effects
Pan Modulator
Volume Modulator
Headphone
chorus
no
breath-controller
MIDI-CC1
MIDI-CC2
MIDI-CC7
mod-wheel
pedal
velocity:MIDI-RX
yes
Control
Arpeggiator
Arpeggiator External
Sequencer
Sequencer Memory
Sequencer External
Continuous
Program Change
no
N/A
no
N/A
N/A
breath-controller
mod-wheel
pitch-wheel
volume-pedal
MIDI-CC1
MIDI-CC2
MIDI-CC5
MIDI-CC7
MIDI
Keyboard
Key Pressure
Chord Memory
External Control
External Sustain
Key Scaling
Velocity Curves
no
no
MIDI:IN/OUT/THRU
pedal MIDI
yes
1
Source
Name
Signal Class
Waveform
Octave Range
Amplitude Modulator
Harmonics Modulator
Pitch Modulator
Wave Assign Modulator
DCO1
digital
sine
16-1/4'
EG1
LFO
FM
breath-controller
LFO
MIDI-CC2
pitch-wheel
PitchEG
portamento
no
DCO2
digital
sine
16-1/4'
EG2
LFO
FM
breath-controller
LFO
MIDI-CC2
pitch-wheel
PitchEG
portamento
no
DCO3
digital
sine
16-1/4'
EG3
LFO
FM
breath-controller
LFO
MIDI-CC2
pitch-wheel
PitchEG
portamento
no
DCO4
digital
sine
16-1/4'
EG4
LFO
FM
breath-controller
LFO
MIDI-CC2
pitch-wheel
PitchEG
portamento
no
Envelope
Name
Level
Rate
Loop
Polarity
Trigger
Level Modulator
Rate Modulator
EG1
sustain
ADDR
no
no
key
key
breath-controller
MIDI-CC1
MIDI-CC2
mod-wheel
key
EG2
sustain
ADDR
no
no
key
key
breath-controller
MIDI-CC1
MIDI-CC2
mod-wheel
key
EG3
sustain
ADDR
no
no
key
key
breath-controller
MIDI-CC1
MIDI-CC2
mod-wheel
key
EG4
sustain
ADDR
no
no
key
key
breath-controller
MIDI-CC1
MIDI-CC2
mod-wheel
key
PitchEG
3
3
no
no
key
no
no
LFO
Name
Waveform
Delay
Polarity
Sync
Delay Modulator
Level Modulator
Rate Modulator
LFO
saw:up
square
triangle
random
yes
no
key
no
MIDI-CC1
no
