16% price drop

Latest revision
Six voice polyphony
56 preset patches in memory
All new key bushings installed


The OB-SX was envisioned by designers to be a smaller, lighter, more durable "live performance" version of their (then) flagship OB-X. The OB-SX featured the same VCO/VCF/VCAs of the OB-X and a voice card design similar to the OB-Xa in which polyphony was based on the number of 2-voice PCB cards installed (using CEM/Curtis chips). Sacrifices were made to the OB-X's "knob for each function" programming interface (replaced in the "SX" by a few realtime only filter and envelope controls), the ability to save patches (all sounds were preset in ROM) and the last octave of the keyboard ("chopped" to 48 notes).

Despite the sacrifices, the OB-SX faithfully reproduces the character (and at times the "ill temper" of an all analog design) of the OB-X and OB-Xa. The preset sounds are a bit dated (e.g. early funk & late prog rock), but still usable and the realtime controls allow a good amount of "shaping" to be done. It's important to note that like all Oberheim synths, the OB-SX was a continual work in progress and there were many different revisions made to the OB-SX during its life time. Major revisions included: Early units had 24 presets and mid units had 48 presets and late units had 56 presets (later units had a slide switch on the back to change between banks of presets). The color/case design was changed from the (early units) black & gray of the OB-X to the (later units) black & blue pinstripes of the OB-Xa and OB-8.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed.

Product Specs

Condition:
Very Good (Used)
Brand:
Oberheim
Model:
OB-Sx
Categories:
Analog Synths
Year:
1982
Made In:
United States

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Thomas's Gear Outlet
Joined Apr 2017
Savannah, GA, United States

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This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed.
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Thomas's Gear Outlet

Savannah, GA, United States
Joined: Apr 2017

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