Roland D-550
D-550 (image courtesy of Roland )
Released: 1987
MSRP: $1395US
Synopsis:
Rack version of the D-50
Architecture Class: Rompler.
Ebay Description:
The Roland D-550 is a 2U rack (velocity and aftertouch sensitive), 16 voice (bitimbral), digital synthesizer, featuring 2-4 oscillators (sample or resonant low pass filtered saw/square), dedicated pitch/filter/amp 5 stage envelopes, 3 LFOs (triangle, saw, square, random waveforms with delay, polarity, sync), effects (reverb, chase, chorus, 2 band EQ), card slot, 64 presets, and MIDI.
Physical
Form Factor
Dimensions
Weight
Audio Input
Audio Output
Communication Port
Control Input
Control Output
Switch Input
Power
61 keys
W:974mm(38.375in)
D:332mm(13.0625in)
H:94mm(3.6875in)
10.5kg(23.1875)
no
stereo
MIDI IN/OUT/THRU
MIDI (supports mono/guitar mode)
MIDI
sustain
program-inc
22W AC (IEC C13 to NEMA 5-15P)
Interface
Compatibility
Multitimbral Memory
Program Memory
External Storage
External Programming
UI Input
UI Output
D-50
D-550
no
internal:64
card:64
MIDI-SysEx
card:M-256D
MIDI-SysEx
menu based
LCD display
Architecture
Multitimbral
Polyphony
Unison
Architecture
2
16 or 8 (bitimbral)
no
[DCO->DCF->DCA]+[PCM->DCA]+[DCO->DCF->DCA]+[PCM->DCA]
Output
Effects
Pan Modulator
Volume Modulator
Headphone
reverb:16, chase, chorus, 2 band EQ (low shelving and high parametric
no
aftertouch
key
LFO-1-3
MIDI-CC7
TVA-ENV
velocity
yes
Control
Arpeggiator
Arpeggiator External
Sequencer
Sequencer Memory
Sequencer External
Continuous
Program Change
no
N/A
no
N/A
N/A
MIDI-CC1
MIDI-CC5
MIDI-CC6
MIDI-CC7
MIDI-CC38
MIDI-CC2-31
MIDI-CC100
MIDI-CC101
MIDI
Keyboard
Key Pressure
Chord Memory
External Control
External Sustain
Key Scaling
Velocity Curves
channel
no
MIDI-SysEx
PG-1000
MIDI
variable
1
Sample
Stereo
Sample Depth
Sample Rate
Sample RAM
Sample ROM
Sample Points
Sample Trigger
Sample Loop
Sample Edit
no
16bit
?
no
?
N/A
N/A
N/A
no
Source
Name
Signal Class
Waveform
Octave Range
Amplitude Modulator
Harmonics Modulator
Pitch Modulator
Wave Assign Modulator
Sample
digital
sample:100
-
no
ring
aftertouch
LFO-1
MIDI-PitchBend
P-ENV
portamento
no
WG
digital
saw
square
-
no
ring
PWM:LFO-1-3/aftertouch/velocity
aftertouch
LFO-1
MIDI-PitchBend
P-ENV
portamento
no
Filter
Name
Signal Class
IC
Resonant
Shape
Frequency Modulator
Resonance Modulator
Shape Modulator
TVF
digital
?
yes
low pass
aftertouch
key
LFO-1-3
TVF-ENV
no
no
Envelope
Name
Level
Rate
Loop
Polarity
Trigger
Level Modulator
Rate Modulator
P-ENV
5
4
no
yes
no
velocity
key
TVF-ENV
5
5
no
no
no
key
velocity
key
TVA-ENV
5
5
no
no
no
no
key
velocity
LFO
Name
Waveform
Delay
Polarity
Sync
Delay Modulator
Level Modulator
Rate Modulator
LFO-1
triangle
saw-down
square
random
yes
pitch/filter/amp
key
key
aftertouch
MIDI-CC1
no
LFO-2
triangle
saw-down
square
random
yes
pitch/filter/amp
key
key
aftertouch
MIDI-CC1
no
LFO-3
triangle
saw-down
square
random
yes
pitch/filter/amp
key
key
aftertouch
MIDI-CC1
no
