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OP-X PRO-II OP-X PRO-II - Synth Interface (available in 3 sizes) OP-X PRO-II - Rack Interface (available in 3 sizes) OP-X PRO-II - Rack Interface - Presets (Famous Bank) OP-X PRO-II - Interfaces OP-X PRO-II - 1.3.0 interface switcher OP-X PRO-II - Interfaces iMac 27
OP-X PRO-II by SonicProjects is a Virtual Instrument Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin and a VST 3 Plugin.
Product
Version
1.3.0
Windows XP SP2 or higher
- CPU: Core2duo or higher
- A 32-bit or 64-bit host supporting VST2 or VST3
Product
Version
1.3.0
OS-X 10.8 or higher
- CPU: Core2duo or higher
- A 32-bit or 64-bit host supporting VST3 or AU
Instrument
Formats
Copy Protection
Serial Number

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OP-X PRO-II is a 12-voice virtual analog synth originally based on the famous Oberheim OB-X. During its evolution the engine however was extended with features borrowed from various other iconic synths of this era, which makes it incredibly versatile. The range of possible sounds reaches from early monophonic synths over classics like OB-X and Jupiter-8 up to Matrix-12.

OP-X PRO-II is a workhorse. It delivers a fantastic rich, full, fat and lively sound at virtually no CPU use. It comes pre-installed with more than 2'500 awesome signature sounds equalling $500 of value, offers 6 interfaces to choose from (2 types each in 3 sizes) and a compatibility of starting at Windows XP 32-bit and OS X 10.8 up to native support for the newest Apple M1/M2 silicon CPUs. OP-X PRO-II is being used by countless famous live-acts and studios all around the world.

Back in 2006 its predecessor OP-X Pro defined a new standard in the world of virtual analog synths by introducing the use of separate voices instead of the so far common voice-cloning and offered voice-based detuning features (trimpots) which in one way or another was adopted by most other VA synth manufacturers in the years after.

The engine of OP-X PRO-II exactly clones the technical structure of real analog voltage controlled polyphonic synths of the 80s, which were based on separate discrete circuits for each voice, which were slightly varying in sound by default because of device tolerances, and could be tuned globally by adding an offset voltage (auto-tune) or individually by adjusting trimpots on the circuit boards. All of this is implemented in OP-X PRO-II too. Which means: The single voices in fact are discrete separate mono-synths (no voice-cloning.) which slightly vary in sound by default (untuned), but can be quickly tuned or again de-tuned globally (also seamlessly if needed) by the click of dedicated buttons (imitating auto-tune) for different parameter groups. Virtual trimpots (imitating the calibration trimpots on the voice-boards) finally also allow to tune pairs of voices individually to achieve a custom detuning if needed.

Since the voices (12) are discrete they also can be individually attached or detached from the central voice allocation unit, which in the originals often could be done with device-internal dip-switches. In OP-X PRO-II this can be done with a combination of switchable master polyphony (6/8/12) and individually detachable voice-pairs (voice mute). This lets you create nearly any setup of choice. By including just one voice you e.g. can create a true mono-synth, by including 5 voices a Prophet-5 with original polyphony behaviour, by including 3 and engaging the "Oct Lower Upper" chord preset a typical 3-Osc Minimoog bass. It's all up to what you want to achieve.

Features like morphable multimode filters (dual filter design), frequency modulation, ring modulation, hard sync, voice panning with modulatable pans, an included arpeggiator/MIDI processor offering 32 modes (including chord presets, note doubling, step-sequencer), and finally an included effects processor give you nearly endless possibilities for sound creation.

OP-X PRO-II comes bundled with a huge included presets library offering more than 2500 awesome presets provided in themed banks. This meticulously crafted library has developed and grown over years and includes many of the most famous 80s hits sounds as well as countless well known factory presets from various classic vintage synths. Presets creation was based on extensive research and A:B tweaking to achieve a level of authenticity you won't find anywhere else. If you're into 80s sound or analog synth sound in general the presets library alone makes this synth a must-have.

General Features:

  • 12 tunable voices (virtual voice-boards) in 2 voice-banks.
  • 2 Oscillators per voice (saw, pulse, sine).
  • FM, hard sync, ring mod, pw modulation.
  • Morphable multimode filter (lp12/24, hp, bp, no).
  • Switchable filter self oscillation.
  • 2 LFOs (main, lever).
  • LFO 1 waveforms: sine, square, saw, triangle, sample&hold, sampled vibrato.
  • LFO 1 features: delay, note trigger, free phase adjustment.
  • 2 ADSRs (Filter, Amp).
  • ADSR 1: invertable, routable to pitch and pulse width.
  • ADSR 2: switchable attack (lin/log), routable to ring mod.
  • Stacked unison with variable amount of voices and spread control.
  • Switchable legato or retrigger (uni/poly).
  • Polyphonic portamento with switchable spread and detuning.
  • Arpeggiator offering 32 modes.
  • Chord hold, sequencer, double mode.
  • Built in effects processor (reverb/delay) offering presets.
  • Switchable dual engine effects processing.
  • LFO, effects and arpeggiator syncable to song tempo.
  • 32 wheel modes, mod to cutoff, asymmetric bending.
  • MIDI learn & relative or fetched CC processing.
  • CC remote patch switching.
  • Arpeggio hold and sequencer start/stop switchable by damper pedal.
  • Separate Voice Design (SVD).
  • Switchable master polyphony (6/8/12).
  • Deactivatable voices.
  • Individual Pan control per voice channel.
  • Panning modulation.
  • Global tuning options (OSC/FILT/ENV/POR).
  • Tuning trimpots per voice channel for custom tunings.
  • Built in patch browser with patch change smoother.
  • 2500 built in presets.
  • Includes many famous 80s sounds.
  • 2 interface types (synth/rack) each in 3 sizes (standard/large/huge).

{See video at top of page}

Latest User Reviews

Average user rating of 5.00 from 10 reviews
OP-X PRO-II

Reviewed By aaron aardvark [all]
May 17th, 2023
Version reviewed: 1.3 on Mac

I own several Oberheim emulation synth plugins, and this one sounds the best to my ears overall, if you want that Oberheim sound. Lots of great factory patches. Check it out! The patch & memory management system could be better, but that's a small price to pay for that sound.

aaron aardvark.

https://www.soundclick.com/artist/default.cfm?bandID=224436

Read Review
OP-X PRO-II

Reviewed By loungedumore [all]
September 20th, 2022
Version reviewed: 1.2.6 on Mac

Amazing Emulation. Sounds fantastic and despite a bad wrap is quite easy to use. If you're after the OBX sound check it out .

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OP-X PRO-II

Reviewed By OinkQuack [all]
May 29th, 2022
Version reviewed: 1.2.6 on Windows

Sonic Project's OP-X PRO-II 1.2.6 64-bit is the best and most authentic sounding Oberheim emulator I have ever heard. Their website information describes how much expertise, detail, precision and love went into developing this virtual instrument.

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OP-X PRO-II

Reviewed By ajdz [all]
November 12th, 2021
Version reviewed: 1.2.6 on Mac

This is simply an awesome sounding synth. It's obivously an Oberheim OB-X emulation from the looks, but this thing really can emulate the typical classic sounds of all kinds of iconic synths of this era including Jupiter-8 and Prophet-5. Especially the Jupiter-8 factory presets the synth ships with sound closer to the real thing than anything else I've heard so far. The synth furthermore comes with absolutely tons of included soundbanks which really all are absolutely outstanding.

The synth offers a nearly endless number of features including voice based detuning, dozens of arpeggiator presets, FM, ring modulator, effects, automated voice panning, step-sequencer and so on. This on one hand is great of course, but if you want to program your own sounds from scratch the plentora of features also becomes a disadvantage somehow since a lot of stuff isn't really obvious and often isn't laid out logically which makes reading the manual a must and therefore can be cubersome. There's really a steep learning curve and I hope they one day provide something like a video tutorial.

Luckily the provided soundbanks are as good and there are as many sounds that you don't necessarily need to program your own sounds. If I do then I almost never start from scratch but just edit an existing preset which already sounds alike which saves me a lot of work.

I initially also wasn't happy with the interface which was too small and hard to read. But then they luckily released bigger interfaces and also an alternative interface without keyboard and unnecessary stuff which is my favourite. Especially the largest version of this interface, the Rack Edition Huge, really is like day and night compared to the original interface with huge sharp controls and big sharp text. Still a bit complicated but a lot better than the original one.

Another positive point to mention is that this synth is very light on CPU for a virtual analog having such a great sound. I'm able to use more than 10 instances in a one session on my medicore computer which is really great.

So all in all I really can highly recommend this synth.

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OP-X PRO-II

Reviewed By manytalnts [all]
October 21st, 2021
Version reviewed: 1.2.6 on Windows

If you want the closest thing to having the actual OB-X keyboard this is the plugin to get. I bought this in 2015 and it is still by far the best plugin for this style of keyboard I have yet to use. I own this and there are other good ones out there (that I also own) but if you want the best, this is it.

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Comments & Discussion for SonicProjects OP-X PRO-II

Discussion
Discussion: Active
vinx98
vinx98
1 March 2021 at 9:48am

Hi I made this video on how to use the OP-X PRO-II arpeggiator (in my opinion) one of the best features of this monster synth.

https://youtu.be/qG8RpZ4K4l4

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