Pricing and availability
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Price
Average Price: $1,918
High-end/Boutique
$500
$1501+
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Budget
Standard
High-end
Price History
Based on price data from 8 merchants for "Sequential Pro-3". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Meet the Sequential Pro-3, the pinnacle of mono/paraphonic synthesizers. This phenomenal instrument is a hybrid of robust, old-school analog synthesis harmoniously paired with versatile digital technology. Its two voltage-controlled oscillators deliver warmth and presence while the third wavetable oscillator provides a digital edge and grit. The Pro-3 is a powerhouse that presents near-endless tonal possibilities.
This synth doesn't just sound incredible; it's also a joy to use. The Pro 3 is a programmer's dream, boasting three oscillators, three vintage filters, three LFOs, and four loopable envelopes. Beyond that, it features a massive 32-slot mod matrix and an intuitive and complex 16 x 16 x 4 sequencer. This instrument is as exciting to program as it is to play, making it an absolute must-have for any serious synthesist.
The Pro 3 is also designed to play well with others, particularly modular synths. Its flexible architecture, complete with 4 rear-panel control voltage inputs/outputs and a dedicated gate output, allows it to interface easily with modular synths. With its ability to process external audio and assign and route control voltages at audio rates, the Pro 3 can become the heartbeat of your modular or multi-synth setup.
Key Features:
- Two analog, voltage-controlled oscillators
- One DSP-based digital oscillator
- Three classic filter types
- Three syncable LFOs with phase offset and slew per LFO
- Four ADSR envelopes with delay
- 3-voice paraphonic mode with individually-gated envelopes per oscillator
- Massive 32-slot mod matrix
- Advanced 16 x 16 x 4 sequencer
- Four control voltage inputs/outputs and a dedicated gate output
- Dual digital effects plus tuned feedback and analog distortion
- 512 factory and 512 user presets
- Three-octave, semi-weighted keyboard with velocity and channel aftertouch
- Backlit pitch and mod wheels
- Position-sensitive latchable touch slider
- Programmable analog distortion
Owner's manual
Sequential Pro-3 User ManualProduct specs
| Type | Keyboard Synthesizer with Sequencer |
| Analog/Digital | Hybrid |
| Number of Keys | 37 |
| Type of Keys | Semi-weighted, Full Size |
| Aftertouch | Yes |
| Velocity Sensitive | Yes |
| Other Controllers | Pitchbend, Mod wheel, Touch Slider |
| Polyphony | Monophonic, 3-voice Paraphonic |
| Presets | 512 x User Programs, 512 x Factory, 32-slot Modulation Matrix |
| Oscillators | 2 x Analog VCO, 1 x Digital Wavetable Oscillator |
| Waveforms | VCO: Triangle, Sawtooth, Pulse ; Digital Wavetable: 32 x Digital Wavetables of 16 Waves each, classic Wave Shapes, Super Saw |
| LFO | 3 x Syncable LFO (triangle, saw, reverse saw, square, S&H) |
| Filter | 4-pole 24dB Prophet 6 Lowpass, 4-pole 24dB Tranistor Ladder, 2-pole 12dB OB-6 State-variable |
| Envelope Generator | 4 x ADSR with Delay, Repeat/Loop |
| Effects Types | Delay, Reverb, Chorus, Flange, Phase, Distortion, Rotary Speaker |
| Arpeggiator | Up, Down, Up+Down, Random |
| Sequencer | 16-track, 4 x Linkable 16-step Phrases, 3 x Modes (normal, gated, trigger), Multiple Playback Modes |
| Audio Inputs | 1 x 1/4" |
| Audio Outputs | 2 x 1/4" (L/R) |
| Headphones | 1 x 1/4" |
| USB | 1 x Type B |
| MIDI I/O | In, 2 x Out, Thru, USB |
| Pedal Inputs | 1 x 1/4" (sustain), 1 x 1/4" (expression) |
| Other I/O | 4 x CV in, 4 x CV out, 1 x Gate out |
| Mod Matrix | 32 Slots, 46 Sources, 171 Destinations |
| Power Source | Standard IEC AC cable |
| Height | 3.5" |
| Width | 26.5" |
| Depth | 13" |
FAQs
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Is the Sequential Pro-3 a fully analog synthesizer?
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The Sequential Pro-3 is a hybrid synthesizer, combining two analog voltage-controlled oscillators with a digital wavetable oscillator for versatile sound creation.
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How many keys does the Sequential Pro-3 have, and are they velocity-sensitive?
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The Sequential Pro-3 features 37 semi-weighted, full-size keys that are both velocity-sensitive and equipped with aftertouch for expressive performance.
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Can the Sequential Pro-3 be used for polyphonic playing?
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The Sequential Pro-3 is primarily monophonic but offers 3-voice paraphonic capability, allowing for limited polyphonic play.
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What types of filters are available on the Sequential Pro-3?
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The Sequential Pro-3 includes three filters: a 4-pole 24dB Prophet 6 lowpass, a 4-pole 24dB transistor ladder, and a 2-pole 12dB OB-6 state-variable filter.
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Does the Sequential Pro-3 include an arpeggiator and a sequencer?
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Yes, the Sequential Pro-3 features an arpeggiator with multiple modes and a 16-track sequencer capable of 4 linkable 16-step phrases, providing extensive rhythmic and melodic possibilities.
Videos
sonicstate
Sequential Pro 3 Synthesizer - SonicLAB Review
Reviews
PROS
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Exceptional sound quality across various types of patches
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Highly intuitive interface, minimal menu diving required
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Durable, high-quality build feels premium
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Innovative tuned feedback module for unique sound shaping
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Versatile sequencer and arpeggiator enhance performance and composition
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Multiple filter types (OTA, Ladder, SVF) for sonic variety
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Significant modulation possibilities with mod matrix and step sequencer
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Paraphonic capabilities offer expanded voice options
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External audio input for processing external sounds through its effects and filters
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Wavetable oscillator adds complex textures and sounds
CONS
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Some users report OS instability, including crackles, pops, and MIDI issues
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Built-in effects (reverb, delay) considered underwhelming by some users
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Factory presets may not appeal to all, requiring more sound design effort
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Sequencer usability falls short compared to competitors for some users
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Plastic side panels can detract from an otherwise premium aesthetic
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Paraphonic mode may not always work as expected
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Stiff knobs may require adjustment period for some users
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Occasional software bugs reported, though not deal-breaking for most
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Modulation routing can be complex and less intuitive for live performance adjustments
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Sequential Pro-3.
Features and functionality
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The Pro 3 is noted for its rawness and ability to deliver both punchy bass and mix-friendly leads, appealing to users who manage gain staging effectively.
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While the sequencer is praised, it's noted for lacking live recording capabilities, which some users find limiting.
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The Pro 3 includes assignable CV in/out for Eurorack integration, useful for modular synth users.
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Offers multiple filter types, but the ladder filter is considered weak compared to other options by some users.
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The Pro 3's portability is favored for live gigs and practice, with some owners choosing it over the larger SE version for ease of transport.
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User experience
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Owners appreciate the Pro 3's UI for its immediacy and inspiration, comparing it to a creative escape similar to the whimsical explorations of Mr. Benn on TV.
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The keybed on the Pro 3 is noted for its quality, contributing to a satisfying playing experience.
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Owners note that the Pro 3 feels like a genuine instrument, encouraging distinct playing styles compared to other synths with similar Fatar keybeds.
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Software and compatibility
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Updating to the latest firmware resolved initial issues with room temperature causing crackling and noise, enhancing reliability and performance.
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Comparisons
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The Pro 3 is contrasted with the Hydra, which was found time-consuming to program and lacking immediate sweet spots, whereas the Pro 3 offers more immediacy despite some menu-diving.
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The Pro 3 stands out for its versatility and ability to explore "crazy territory," differentiating it from more traditional mono synths like the Moog GM.
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The Pro 3's modulation matrix offers 32 slots, doubling the Take 5's 16 slots, enhancing modulation complexity.
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The Pro 3's sequencer is highly praised for its depth, surpassing the basic sequencer of the Take 5.
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Users highlight that while the Moog Matriarch sounds superior in isolation, the Pro 3 integrates better in tracks and offers more convenience for live adjustments.
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Use cases and applications
Critic Reviews
5.0 out of 5
Based on 2 Reviews and 5 Ratings
66
Nice Synth
Very Versatile to explore sounds. Nice Mod Matrix and Step Sequencer. Very Nice analog Sound, but you have to dive deeper and the factory presets aren't usefull.
198
Fun, useful and expressive monosynth
I purchased the Pro-3 because I wanted to replace a couple of analog monosynths with something that had patch memory. What I got not only fit the bill perfectly for that, it is also an absolute blast to play. I strongly recommend it.
Artist usage
Add artist
In an Instagram post by Justin Bieber, he is visibly using a Sequential Pro-3 synthesizer, as captured by photographer @rorykramer.
Vitalic has the PRO3 in his studio. From 0:50 you'll see him play around with it.
Overmono can be seen unpacking the Sequential Pro-3 in an Instagram post captioned "studio setup for the week," posted on December 14, 2020.
Kenny Larkin features the Sequential Pro-3 prominently in his studio, as seen in photos he shared on Facebook.
Ronan Harris is confirmed to use the Sequential Pro-3 synthesizer, as detailed in a news section on VNV Nation's official website, specifically in a post listing studio equipment.
In his 2020 studio setup video, Ricky Tinez discusses the Sequential Pro-3 as his favorite synthesizer.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Sequential Pro-3, it is most commonly used with the following gear.
Community setups
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