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 Mx-Jr by KBplugs is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
Product Mx-Jr
Developer KBplugs
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.1  Downloads Released
Miscellaneous Information
Copy ProtectionNone
Other / Unknown

A loose approximation of the Oberheim OB-Mx, which was designed by Don Buchla. A single voice structure, no layers or splits. The oscillators' waveform controls have been enhanced with continuously-variable sine>saw mixed with sine>pulse.

12-slot modulation matrix.

Panel can be 'Obie' ivory or a copper-tone color.

This does NOT emulate or model the actual sound of any Oberheim or any other vintage hardware synth, just borrows from the control design, layout and panel design of the OB-Mx.


32-bit, so will require jBridge, etc., (or a DAW that will bridge) for use on 64-bit systems.

The link on the website is to a Sync.com folder that also contains the .osm Synthmaker source 'schematics', so anyone with SM, or it's successor Flowstone, can alter it to suit. It's hoped that anyone who makes significant improvements will share the result with everyone.

As this was originally built for my own use only, there are no presets included; I wanted to come at the instrument anew each time, as one did with vintage analog hardware.

Made with SynthMaker

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