OAX-1 Arranger Workstation Keyboard


All prices subject to change without notice.

Will be available as an organ option soon!

Available in Gloss Black, Gloss White or any colour of your choice.

The ABACUS KS1 was the world’s first keyboard, which included a complete Windows PC and set standards. The new OAX-1 continues the path and presents itself as a modern and innovative keyboard. The current operating system Windows 10, the fast processor, the intuitive operation and the certainty to be prepared for the future, are highlights of the OAX-1.


WERSI moves the bar of what is technically possible within a hardware instrument to previously unknown heights! Building on the success of the past 13 years with the OAS range, WERSI has created a new concept full of innovation and musical highlights! WERSI is a world leader in Sound Design and software development. Through the use of the latest technology and the results of years of research and development, the Sonic is the pinnacle of instrument design and playability!

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  • Full software control over all functions and sound colors
  • Continuous development of the entire system
  • Up to 16 sound colors
  • EASY mode to get going quickly without all the complication
  • 6 Effect sound buttons for playing effects such as crash basins or vocal effects.
  • 1500 tone colors for all musical styles.
  • Sampling, Wavetable synthesis, FM synthesis, analog synthesis.
  • 6 Easy-Sound-Controls individually for each sound color (equalizer, echo, sample start point, attack, release, vibrato, filter and much more).
  • Four sound effects with Hall 1, Hall 2, Chorus and Echo; Further effects individually already programmed in the sound colors.
  • Three sound colors on the upper and lower part, as well as a pedal sound color.
  • 6 Effect sound buttons for playing effects such as crash basins or vocal effects.
  • 5000 own total presets can be stored
  • Each of the factory styles has four preset presets. So you can start with any style directly!
  • Individual settings for the four sound effects.



Technical Feature Highlights:

  • Modern motherboard with i7 processor.
  • 8 GB RAM (of which 6 GB can be used for own samples), optionally up to a maximum of 32 GB RAM.
  • SSD hard drive with 250 gigabytes ensures the fastest loading times.
  • DVD or optional Blu-ray.
  • Windows 10, 64bit.
  • 4 x USB 2.0 on the front, further USB 3.0 on the back.
  • Headphone connector
  • 1 x high-end microphone preamplifier including phantom power (XLR / jack combo jack).
  • HDMI video output.
  • 1 x LINE IN Stereo right / left (XLR / jack combo jack)
  • 2 x LINE OUT Stereo right / left (jack).
  • 2 x MIDI IN / OUT / THRU.
  • MIDI over USB function for direct connection to PC and Mac
  • Pedal and sill connector via a sub-D connector.