Ensoniq SD-1 90's Polyphonic Digital Additive Synthesiser & Sequencer - 100V
The SD-1 was released in 1990. It is an interesting digital synthesiser as it uses additive synthesis and waveform modulation to create sound, a kind of wavetable synthesis. This places the SD-1 among unique synthesisers such as the PPG Wave and Waldorf Microwave series.
The SD-1 can create all sorts of acoustic, electric, digital, and analog-like sounds. Its piano sound has over 1 MB of 16-bit waveforms to give it a full and rich realistic tone not found in other digital synthesisers of the time.
The SD-1 has 21 voices of polyphony and a single patch can contain up to 6 of the 168 waves in its ROM memory that can be combined and layered. Advanced and analog-like synth parameters including its dual multi-mode digital filters, three 11-stage envelopes, LFO, and 15 modulation sources allow you to further shape and morph your sounds. There's even a dual effects processor with reverb, chorus, flanging and delay.
The SD-1 has a professional quality on-board sequencer making it a complete all-in-one music production workstation. This is a 24-track sequencer with 25,000 note capacity and it holds up to 60 sequences and 20 songs.
Polyphony - 21 voices
Oscillators - 1 to 6 per voice. Wavetable has 168 waveforms (multi-sampled acoustic instruments, sustained waveforms, harmonic and inharmonic structures) 3.5 MB ROM.
LFO - 1 LFO
Filter - dual multi-mode digital filters
Envelopes - 3 11-stage envelopes
Sequencer - 25,000 note capacity (expandable to 75,000), 60 patterns, 20 songs
Effects - 24-bit Dual VLSI Multi-Effects: reverb, chorus, flanging, and delay
Keyboard - 61 keys (velocity and polyphonic aftertouch)
Memory - 180 Patches, 60 Performances
Control - MIDI (12-parts)
Date Produced - 1990
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