Sequential Prophet X



  • Bi-timbral 8-voice stereo (16-voice mono)
  • Semi-weighted keypad with 61 keys and Sftertouch
  • Sound production: Two 16-bit/48kHz sample-based voices plus two digital oscillators with Waveshaper
  • Analog stereo filter
  • 150 GB sample library with acoustic and electronic instruments as well as ambient and film effects
  • 50 GB of internal memory for importing additional samples
  • Various processing options: Loop manipulation, sample stretching, four envelope generators, four LFOs and modulation matrix
  • Three OLED displays
  • Two programmable touch sliders (Position and pressure sensitive)
  • Pitch and modulation wheel
  • Analogue line-output 4x 6.3 mm jack (L/R)
  • Stereo headphone-output 6.3 mm jack
  • MIDI In/Out/Thru
  • USB
  • USB Sample Import
  • Volume- and Sustain-pedal input
  • Dimensions (W x H x D): 976 x 109 x 343 mm
  • Weight: approx. 11 kg
Available since July 2018
Item number 438524
Sales Unit 1 piece(s)
Number Of Keys 61
Touch-Sensitive Yes
Aftertouch Yes
Split Zones Yes
Modulation Wheel Yes
Number of simultaneous Voices 16
Sound Engine Digital
MIDI interface 1x In, 1x Out, 1x Thru
Storage Medium Internal
USB-port Yes
Effects Multieffect processor
Arpeggiator Yes
Number of Analog Outputs 2
Digital Output No
Display Yes
Pedal Connections 1x Pedal, 1x Sustain
Dimensions 976 x 109 x 343 mm
Weight 11,0 kg
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5 Customer ratings

4.4 / 5

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3 Reviews

Great and versatile Synth
J_P_P 09.03.2020
This is a great synth, with a Warm and versatile sound.

Great Constrution , Intuitive to use (for such possibilities) and "fun." Pretty much "Hands-on" with lots of knobs, and a little Menu Diving (it has 3 for the sample selection other for effects and other for more Global and General options)

This is a Synth that works with a "Synth-like" workflow, but with Samples and Synth OSCs (and can combine, blend them), not a Workstation,
The included Sample Library from 8dio, is very large, covers many things from Pianos, Synth forms, Acoustic and electric Instruments, Choirs, Strings, Percussions , and you can import and map your own samples with an Utlility in your PC or Mac.

It has 2 OSC "Intruments" that use Samples, and 2 OSC "Synths" that uses more tradicional Waveshapes. The sound can be true Stereo or depending on the voice mode (8 , 16 or 32 Voces). You can use 2 layers per patch, that can be stacked or Spllt.

The Modulations possiblities are prettyy deep and extensive ! You can get the sort of more "Bread & Butter" sounds that are expected from a Synth, "Rompler" kinda sounds or you can get pretty crazy and experimental and combine, mix them in a easy way , but be ready to waste a lot of hours , because there are indeed lots of posibilities and very different kinds of Sounds you can achieve from straight Piano sounds to Synth pacthes.

The analog Filter has a round , pleasing and warm charater that takes it away from the more "cold" charateristic sound that you get with some Digital Rompler Workstations.

Yes... it is not cheap...but if you want a Synth that goes beyond the usual Subraticte Synth capabilities and sound possibilites and can also use use Samples with workflow similiar to a proper Synth (and not a Workstation with lots of menu diving) with a very Hands on Sound Design and possibilities , i would seriously consider this.

Listen to the Demos...and if it pleases you, this can be a very great option .


Best synth i have ever bought
eghanssen 07.10.2020
I love this synth. It can do things with the sound that opens up new doors. Just the fact that you can send both the oscilators and the sampling synth through the filters makes it possible to make new sounds that you easily can change hands on. It is easy to navigate, and to set up the controls like the sliders, or weel for each sound.

I highly recommend this synth. it is worth every penny.


google translate dk
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Analog/rompler hybrid
Synthesizers Will Save The Planet 22.08.2021
I second what J_P_P says above. This is not a workstation and the built-in effects are for the most part best left alone (this applies to most synths with built-in effects). It's not a sampler either and the sample manipulation is quite limited. Yet, its hybrid nature and the extensive modulation matrix make this synth very versatile. The analog synth engine is second to none. Addition: The PX has two major flaws. First, the user interface is inconsistent and often confusing if not frustrating. For example, switching between instruments/effects on the two smaller screens is done quite differently. Second, the sample playback is prone to cracks and pops even on some factory patches. Modulating sample start, stop and loop length is therefore virtually impossible. For these reasons I decided to return it.


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