Oberheim OB-Xa

Oberheim OB-Xa

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OB-Xa, Analog Synth from Oberheim.

3 user reviews

Oberheim OB-Xa tech. sheet

  • Manufacturer: Oberheim
  • Model: OB-Xa
  • Category: Analog Synths
  • Added in our database on: 04/09/2004

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Oberheim OB-Xa user reviews

Average Score:5.0( 5/5 based on 3 reviews )
 3 reviews100 %

Loul11's review (This content has been automatically translated from French)

Oberheim OB-Xa
Keyboard 61-sensitive, two lever modulation, humidification and complete ease, full audio output, 32 memories, 8 voice polyphony.


The ergonomics are exemplary, as each button and its function is to everything.


Trs pain for special effects, the brass are beautiful and the synth itself is trs beautiful.


Trs reliable device for analog and trs used today.
You can not down an entire studio around it but it can be a pice matress!

VinceBlood's review (This content has been automatically translated from French)

Oberheim OB-Xa
I own the model 120 with 8 channels programs. The characteristics of the OB-Xa is rather small compared to modern synths, but it is a standard small end.

What to remember here is two inland VCO (Saw and Pulse), 12dB and 24dB filter (one or the other), a noise (on / off), an LFO (sine / square / sh ) modulating the frequency, the filter or pulse width, an envelope follower to create VCO2 glides.

There is NO original MIDI or CV / gate (unlike his elder, the OB-X). There is, against an interface 'computer' to connect the DSX sequencer. With modification from a specialist, it is possible to install a kit noon (Kenton, for example) for those who can not do without MIDI.

Finally, this synth uses a technology mainly based Chipset Curtis, reliable but is completely obsolete today.


After starting the synth, it takes about 20 minutes to stabilize the VCO. Auto-tune button allows any time to give each card's synth tracks.

The grip is on the other hand could not be more simple because all parameters are directly accessible. Buttons and knobs are large enough, clearly organized and well spaced apart. The keyboard is a bit noisy but I find it enjoyable.

Programming is easy enough, its a good program to quickly is surprising.


This is the highlight of the synth, it has a personality, a character, the sound is very warm and fat. It sounds just Oberheim. The sound is quite typed 80 (Queen - I Want To Break Free, for example), so we will not use it for a main function as rightly pointed out the previous post. This is something that will no doubt add value to a piece if used rightly.

Sounds typical of the OB-Xa is the ground 'brass' presence with major media and remarkable, ground light, sound scripts Sweet Dream, percussive sounds such organ (excellent), the sync leads and special effects simple (not a modular either).


I own this synth for about eight months, it gives me great pleasure every time I play with, it has a sound that moves me. An happiness for me!

jed's review (This content has been automatically translated from French)

Oberheim OB-Xa
I think it went well vinceblood expressed on this ... I will not here too caratristiques its own (not quick or envelopes, filter ... but not aggressive or plutt the sound of synth gnral)

My MODEL is 8 voice polyphony / 120 programs and the noon (Mountain of the last of the era MODELS).

- It has the possibility of rlger pans of all the ways that indoor Expanded sound. In the outgoing stro, we get a super large one plus the possibility to go into effect stro ...

- Its weight and dimensions are quite leves. In addition, the stability of boards and components do not make a synth Designed for dplacements wild. It's a synth amricain (like Moog and Prophet SCI) and their poor ahrit to ask a reputable prchauffage before use.
And yes, it's a living BCAN and scrolls ... This may be the low point and highlight both ;-)


- It is the RSID o the power of the Oberheim OB SERIES gnrale in: their simplicity!
It can download any factory patches easily on the internet and rinsrer in the synth. And we meet all 120 programs are Different.

The edition of the sounds is simple and clear, thanks in part to the large panel and switches that are placed intelligently.

Possibility to edit according to manual, which contains all true rglages of knobs and not rglages memory: trs useful!

The modulation is part of OB sries ... Two joysticks fawn airplane pilot that are super effective. Should we still be able and know how to use!


Ha, finally, I waited to get this picture with impatience!
The OBXA is not a machine like the others. Compared too often wrong with the Jupiter 8 and Prophet 5 when he has nothing do with.

Really, he is able to sound out the sweetness of an angel and when pushed a bit into a corner, then a rise in bte dmoniaquepeut ... Lol I'm not kidding, believe me!

In my opinion, this is THE machine for pads and leads. how many groups have used ... I know he is capable of making good trs low because it is one of synths that does not lose too low when you go up the rsonance the filter. But I find that other synths do better than him then ...

'll Cost me with the DMOS Fully couraging obxa in the forum and the topic "My com 100% OB-XA". You will find all links on page 6 to cost 3 DMOS which show a wide stretched sound that can come bte. Look for a little more in the forum and you will find other DMOS diffrent, more aggressive, shorter etc ...


It's been a year now I have my big bb and I can not get enough. I understand why it is hard to find now. People want more but all homeowners do not want it Sparer: too prcieux ... I understand. Besides, I either I do not spare finally until it loose.

I love especially for pads, leads (or the soft vangelis or aggressive the Van Hallen). It is also capable of outputting sounds like those found in the albums of AIR ... Queen ... Vangelis ...

- The use of split mode allows both hands to work directly with the left pad and a lead right. It's great practice to find Młoda.
- The use of dual mode increases the potato sounds. It may contain eg the same patch of duplication and drgler their tuning, which grazed on his back!
- The use of unison mode uses 8 channels on a single note, and j'vous not tell you to take the slap in the speakers when you set off. APRS can use the dual mode and mode unison both what divides unison with 4 channels per note and gives a different timbre to the sound.

Finally you see that even if the obxa is not a synth sound research, even when it allows for lots of things in s'explorer cratives. I think people who want or possdent this synth are aware of everything I say and in the end, they s'intressent more at LEGEND CHARACTERISTICS own this synth.

@ + Good and MUCH ;-)

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Oberheim OB-Xa manuals and other files

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Other names: ob xa, obxa

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