OP-X PRO-II offers world unique features and a sound that will make your brain release endorphines. It will deliver the fattest and warmest strings, pads, brasses and solos you've ever heard from a virtual synth. An included library of more than 1500 of the finest presets inluding many of the most famous 80ies hits sounds and countless well known presets from various classic vintage synths builds the base for your work. Features like relative or fetched midi cc response make this synth a perfect live machine. Read more

General Features:
- 2 oscillators (saw, pulse, sine)
- fm, hard sync, ring mod, pw modulation
- morphable multimode filter (lp12/24, hp, bp, no)
- 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 unisono 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, asymetric bending
- MIDI learn & relative or fetched CC processing
- full MIDI feedback support
- 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 for custom tunings
- built in patch browser with patch change smoother
- 1500 built in presets

    The newest version of the synth (1.2.6) now offers three interface sizes provided by separate installers, plus additionally an alternative "economy-style" interface called "Rack Edition" in a separate package which itself too offers three interface sizes via separate installers.

    Learn all about the new interfaces on this dedicated site.

    To change the interface simply install the one you need over the existing one using its dedicated installer and the new interface will be available after new sequencer launch.

Home page: sonicprojects.ch/opxpro2/interfaces.html

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