Pricing and availability
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Average Price: $3,282
High-end/Boutique
$500
$1501+
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Based on price data from 4 merchants for "Dave Smith Prophet X". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
The Dave Smith Prophet X synthesizer is a masterful blend of analog warmth and digital precision, making it an essential tool for any musician looking to push sonic boundaries. Crafted with the expertise of legendary designer Dave Smith, this 61-key hybrid synth combines bi-timbral capabilities with a robust sound engine that drives dual 16-bit, 48kHz sample-based instruments and high-resolution digital oscillators. Its 150GB sample library, curated by renowned developers 8Dio, offers an expansive range of acoustic and electronic sounds, along with ambient effects that inspire creativity.
The real magic of the Prophet X lies in its ability to shape and manipulate sound. With features like loop manipulation, sample stretching, and a versatile modulation matrix, you have all the tools needed to craft unique soundscapes. Also, its stereo analog filters add depth and presence, ensuring your tones are always rich and engaging. Whether you're in the studio or on stage, the Prophet X's semi-weighted keys with velocity and aftertouch deliver a premium playing experience, complemented by its sleek design featuring three OLED displays for easy navigation.
Professionals will appreciate the dual effects engine, offering a range of reverbs, delays, and modulation effects to enhance each layer uniquely. The polyphonic step sequencer and fully-featured arpeggiator expand your performance possibilities, syncing effortlessly with external MIDI devices. The Prophet X isn't just a synthesizer; it's a powerful instrument that honors the Prophet legacy while paving the way for new musical innovations.
Key Features:
- 61-key semi-weighted keyboard with velocity and channel aftertouch
- Bi-timbral, 8-voice stereo (16-voice mono) synthesizer
- 2 simultaneous 16-bit/48kHz sample-based instruments
- 150GB sample library by 8Dio and 50GB for user-imported samples
- Dual high-resolution digital oscillators with waveshape modulation
- Stereo analog filters for enhanced depth
- Polyphonic step sequencer with up to 64 steps
- Modulation matrix with 16 slots
- Dual effects engine with multiple effects per layer
- USB support and three OLED displays for intuitive control
Product specs
| Type | Keyboard Synthesizer with Sequencer |
| Sound Engine | Sample plus Synthesis |
| Analog/Digital | Digital |
| Number of Keys | 61 |
| Type of Keys | Full Size, Semi-weighted |
| Aftertouch | Yes |
| Velocity Sensitive | Yes |
| Other Controllers | Pitchbend, Mod wheel |
| Polyphony | 8 Stereo, 16 Mono |
| Number of Presets | 512 factory (4 banks of 128), 512 user |
| Oscillators | 2 x Digital Oscillators per voice |
| LFO | 4 x LFO per voice |
| Filter | 2 x Analog 4-pole Lowpass Filters, 1 x Digital Highpass Filter |
| Effects Types | Delay, Reverb, Chorus, Flanger, Phaser, Distortion, Modulation |
| Arpeggiator | Manual, Rise, Fall, Rise Fall, Random, Assign |
| Sequencer | 64-step polyphonic sequencer |
| Sampling | Sample Playback, 150GB factory installed 8Dio instruments |
| Storage | 50GB Internal |
| Audio Outputs | 2 x 1/4" (main), 2 x 1/4" (output B) |
| Headphones | 1 x 1/4" |
| USB | 1 x Type A, 1 x Type B |
| MIDI I/O | In/Out/Thru/USB |
| Pedal Inputs | 1 x 1/4" (volume), 1 x 1/4" (sustain), 1 x 1/4" (sequencer), 1 x 1/4" (pedal/CV) |
| Mod Matrix | 16 Slots, 28 Sources, 92 Destinations |
| Power Source | Standard IEC AC connector |
| Height | 4.13" |
| Width | 38.44" |
| Depth | 13.53"" |
| Weight | 24 lbs. |
FAQs
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What type of synthesis does the Sequential Prophet X use?
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The Sequential Prophet X utilizes a sample plus synthesis engine, combining digital oscillators with a powerful sample playback system to create a wide range of sounds.
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How many keys does the Sequential Prophet X have, and are they velocity-sensitive?
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The Sequential Prophet X features 61 full-size, semi-weighted keys that are both velocity-sensitive and equipped with aftertouch for expressive playing.
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How many voices of polyphony does the Prophet X offer?
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The Prophet X provides 8 stereo voices and 16 mono voices of polyphony, allowing for rich and complex sound layering.
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What are some of the standout effects included in the Prophet X?
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The Prophet X includes a variety of effects such as delay, reverb, chorus, flanger, phaser, distortion, and modulation, enhancing its sound design capabilities.
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Can the Sequential Prophet X integrate with other MIDI devices?
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Yes, the Sequential Prophet X features MIDI In/Out/Thru and USB connectivity, making it compatible with a wide range of MIDI devices and DAWs.
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Does the Prophet X have sampling capabilities?
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The Prophet X offers sample playback with 150GB of factory-installed 8Dio instruments, allowing for extensive sound customization and versatility.
Videos
Perfect Circuit
Sequential Circuits Prophet X Sounds
Reviews
PROS
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Versatile hybrid synth with sample and analog oscillator combination
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Warm, high-quality stereo analog filters enhance sound richness
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61-key Fatar keybed with aftertouch for expressive performance
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50GB free space for custom samples and additional libraries
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Intuitive "knob per function" interface aids creative process
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High build quality with three helpful OLED screens
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Unique onboard samples inspire deep sound design
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Strong community support and sample sharing
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Capable of revitalizing old samples with improved sound quality
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Known for superb sound output with proper impedance headphones
CONS
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Sample implementation can be clumsy and editing is not ideal
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Reports of "bricking" require potential hardware fixes
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Output jacks may cause hiss with low-impedance headphones
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Discontinued due to chip unavailability raises service concerns
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Dave Smith Prophet X.
Build quality
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Some users report repeated boot errors and unreliable performance requiring service, even after repairs, indicating potential ongoing quality issues.
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Comparisons
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The Nord Wave 2 is often mentioned as a close alternative, but lacks the modulation depth and sample playback quality of the Prophet X.
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Roland Fantom EX users appreciate its versatility, though note it may not fully replace the Prophet X's unique sound design capabilities.
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The Prophet X is noted for its advanced sampling capabilities and sound design potential, surpassing the Jupiter X in versatility and depth.
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User experience
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Owners of the Waldorf Quantum and Iridium have mixed experiences, with some reporting severe QA issues like screen detachment and random crashes.
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Some owners of Waldorf synths report improved build quality in newer units, though early models had significant issues.
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Owners praise the Prophet X for its rich sound palette, particularly for cinematic orchestral sounds, making it a favorite for diverse music genres like HipHop/RnB and EDM.
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Features and functionality
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The Korg Modwave offers similar sample and wavetable capabilities, though lacks the Prophet X's analog filters and sample shaping features.
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The Prophet X includes expansion packs like the 8DIO, offering 16GB of deep-sampled oscillators from iconic synths like Jupiter, Prophet 5, and Moog One.
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Mods and upgrades
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Users recommend adding outboard filterbank EQ and compressors for more hands-on controls and enhanced tonal shaping.
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Critic Reviews
5.0 out of 5
Based on 0 Reviews and 2 Ratings
Artist usage
Add artistAlbum Usage
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Genre Usage
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Based on how musicians on Equipboard use Dave Smith Prophet X, it is most commonly used with the following gear.
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