Obxd is based on the Oberheim OB-X. It attempts torecreate its sound and behavior, but as the original was very limited insome important ways a number of things were added or altered to theoriginal design.
If you're unfamiliar with the OB-X, its user manual caneasily be found from various sources on the net. This manual will makeno attempt to explain basic synth programming or the operation of theOB-X, but will discuss modifications from the basic design and in somecases their ramifications.
The Obxd was designed to sound as goodand as rich as the original. It implements micro random detuning whichis a big part of that sound. However, it was not designed as aself-contained completely independent soft-synth. It needs to becontained within a VST framework where things like transposition,automation, layering, arpeggiation, etc., are available.
Also, like manysynths of the OB-X's generation, the Obxd has no internal effects soits sounds and textures can be greatly enhanced by the use of additionalprocessing like chorus, reverb, delay, etc.