D-550 is a rackmount version of Roland’s popular D-50. The unit features fewer controls though the circuit is identical.
D-550 is based on the capabilities of one of the most popular digital synthesizers not only ever created by Roland but ever emerged on the market D-50. The rack version was released in 1987. It features 16-voice polyphony which becomes an 8 one in a split or a dual mode. The architecture offers bitimbrality, 32 oscillators providing 2 per voice while in dual or split mode there are 4 per voice available. The synthesis is based on Roland’s Linear Arithmetic technology combined with 8-bit PCM samples onboard. The structure includes 3 LFOs. The filter section is represented with a low pass resonant filter TVF (Time Variant Filter) while the amp is also defined as TVA. Memory stores up to 64 patches.
Roland D-50 received a TEC Award in 1988 beating Yamah DX7 in popularity and waiting for the Korg M1 to come and take its laurels already the next year. D-50 was among the first synths to offer digital chorus and reverb as well as to include sample-based sounds not being a sampler.
D-50 was also unique back then owing to its digital wave generating while many other synths used to fill their structures with complete PCM wave samples. D-50 used PCM to sample acoustic instrument attack nuances as well as delivered samples of famous analog synthesizers processed through the analog path LFO, filter, amp stages.
As well as D-50 the instrument is MIDI compatible but the transmiting is possible only via one channel at a time.
Synthesizer, Digital (D), Digital Voices: 32, Multi Timbral Capacity: 9part(s), Oscillators overall: 4, Number of Keys: 61, Velocity Sensitivity, Size: 5, Production start: 1989, Production ended: Yes.
D-10 has taken the synthesis core features from D-50. The synthesizer was priced quite reasonably. D-10 is capable of multitimbral operating and included a rhythm machine function. The instrument comprised several types of reverb. The engine was a bit...
D-20 is a 32-voice polyphonic synthesizer based on Roland’s digital Linear Arithmetic synthesis and ROM samples. The instrument is 9-part multitimbral. Memory provides with 128 preset patches, 64 user patches and 128 performances. The effects section...
D-50 is one of the most popular digital synthesizers not only ever created by Roland but ever emerged on the market. The 61-note velocity sensitive keyboard with aftertouch was released in 1987. It features 16-voice polyphony which becomes an 8 one in a...
2.0/5 1
Roland PG 1000D50/ D550 External Control Panel300.00U.S.Dollars
Sound Module/ Tone Generator External Control Panel, Production ended: Yes.
/5 0
Roland D-550Rackmount Sound Module/ Tone Generator500.00U.S.Dollars
D-550 is a rackmount version of Roland’s popular D-50. The unit features fewer controls though the circuit is identical. D-550 is based on the capabilities of one of the most popular digital synthesizers not only ever created by Roland but ever emerged...
Sound Module/ Tone Generator, Hybrid, Digital+Analog, Voices: 8, Multi Timbral Capacity: 8part(s), Oscillators' hard sync, Oscillators per voice: 3, Production start: 1986, Production end: 1988, Production ended: Yes.
/5 0
Korg M1RRackmount Sound Module/ Tone Generator300.00U.S.Dollars
Korg M1R is a sound module, a rack version of Korg M1 synthesizer. It was produced by Korg company since 1988. The unit includes all the functionality of the legendary M1, enclosed in a compact housing.
/5 0
Kurzweil K2000RRackmount Sound Module/ Tone Generator550.00U.S.Dollars
Sound Module/ Tone Generator, Digital (D), Voices: 24, Multi Timbral Capacity: 16part(s), Oscillators per voice: 4, Production start: 1991, Production ended: Yes.