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The SEM, Two Voice, Four Voice, and Eight Voice were eventually replaced by a series of microprocessor-controlled synthesizers, beginning with the OB-1 and culminating in the OB-X and OB-Xa, which were fully programmable and significantly more compact than their predecessors, which Oberheim discontinued production of in 1979. [1]
Oberheim OB-X internal view. The OB-X was the first Oberheim synthesizer based on a single printed circuit board called a "voice card" (still using mostly discrete components) rather than the earlier SEM (Synthesizer Expander Module) used in Oberheim semi-modular systems, which had required multiple modules to achieve polyphony.
In May 2022, the Oberheim OB-X8 was released, the first Oberheim-branded synthesizer in decades. As with the OB-6, the OB-X8, which offers features from all of Oberheim Electronics' classic OB-series polysynths-the OB-X, OB-Xa, OB-SX, and OB-8-in a single unit, was designed and built in collaboration with Sequential. [27]
The OB-Xa was the first Oberheim product adorned with blue horizontal pinstripes on black background that would become standard trade dress for future Oberheim products. While the OB-Xa offered the same polyphony as its predecessor (4, 6 and 8-voice models were offered), its keyboard could be split into two halves (each with its own voice) or ...
2-Voice, DPX1, OB-MX, OB-SX, SEM Pages in category "Oberheim synthesizers" The following 13 pages are in this category, out of 13 total. ... Oberheim OB-Xa; Oberheim ...
The OB-8 features eight-voice polyphony, two-part multi-timbrality, a 61-note processor-controlled piano keyboard, sophisticated programmable low-frequency oscillation (LFO) and envelope modulation, two-pole and four-pole filters, arpeggiator, external cassette storage, MIDI capability and 120 memory patches, 24 bi-timbral patches, and used the ...
Thomas Elroy Oberheim (born July 7, 1936), known as Tom Oberheim, is an American audio engineer and electronics engineer best known for designing effects processors, analog synthesizers, sequencers, and drum machines. He has been the founder of four audio electronics companies, most notably Oberheim Electronics.
The DSX equipped with the Oberheim Serial Buss, a pre-MIDI proprietary parallel bus designed to directly interface the DSX with Oberheim's OB-Xa or OB-8 synthesizers along with their DMX drum machine. Connection was via a heavy 1:1 cable, which plugged from the host DSX to the target synthesizer using a rear DB-37 connector.