Best Sequential Electronic Keyboards: 13 Models Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This guide compares 13 best sequential electronic keyboards, focusing on their published specifications. Sequential offers a range of analog synthesizers, from compact desktop modules to full-sized 61-key instruments. The list includes units with varying dimensions, weights, and color finishes, such as black and multicolor options. The Sequential Prophet-6 Desktop Module leads this selection. It is the top pick because it delivers 6-voice discrete analog sound in a space-saving format. All rankings are based strictly on the technical data provided in the product listings.
Quick picks
Our 13 picks
Sequential Prophet-6 Desktop Module
Best for: desktop setups needing 6-voice discrete analog sound
- Dimensions
- 25.4 × 11.8 × 8.75 inches
- Weight
- 10 pounds
This desktop module delivers the Prophet-6 analog architecture in a compact format without an integrated keyboard. You get 6-voice polyphony powered by discrete VCOs and filters, alongside an enhanced Poly Mod section and dual onboard effects. It measures 25.4 by 11.8 by 8.75 inches and weighs 10 pounds. It suits you if you already own a dedicated MIDI controller and want pure Prophet-6 sound engine capabilities on your desk.
Pros
- 6-voice polyphony with discrete VCOs and filters
- Enhanced Poly Mod section for modulation routing
- Dual effects section built into the unit
- Compact 10-pound desktop module format
Cons
- Does not include an integrated keyboard
- Requires an external MIDI controller or sequencer to play
Good fit if
- You want 6-voice analog sound without taking up floor space for a full keybed
- You already have a primary MIDI controller ready to connect
- You need built-in dual effects and discrete analog filters in a desktop unit
Skip if
- You need an all-in-one synthesizer with built-in keys
- You need more than 6 voices of polyphony
Verdict: Sequential Prophet-6 Desktop Module delivers the complete 6-voice discrete analog engine and dual effects of the Prophet line in a space-saving module format. It is a practical choice when you want the hardware synthesis engine to connect directly to your existing keyboard rig.
Sequential Fourm 37-Key Analog Synthesizer
Best for: compact setups needing polyphonic aftertouch
- Number of Keys
- 37
- Key Action
- Polyphonic Aftertouch
- Color
- Black
- Dimensions
- 28 × 13.4 × 6.9 inches
The Sequential Fourm is a compact polyphonic analog synthesizer equipped with a 37-key keybed and polyphonic aftertouch. Its sound engine features two VCOs, two ADSR envelopes, and a modulation matrix, alongside a built-in sequencer and arpeggiator. Measuring 28 inches long and 13.4 inches wide, it suits you if you want analog sound synthesis and per-key expressive modulation in a smaller format for desk setups.
Pros
- Polyphonic aftertouch key action
- Two VCOs and two ADSR envelopes
- Built-in sequencer and arpeggiator
- Integrated modulation matrix
Cons
- 37-key range limits two-handed playing
- Profile height of 6.9 inches is relatively tall
Good fit if
- You need polyphonic aftertouch on a 37-key analog keyboard.
- You want dual VCOs, two ADSR envelopes, and an onboard sequencer.
- You have a workspace that fits its 28-inch width.
Skip if
- You require a 61-key or larger playing surface.
- You want weighted or hammer-action piano keys.
Verdict: Sequential Fourm 37-Key Analog Synthesizer provides two VCOs, deep modulation routing, and polyphonic aftertouch in a 37-key footprint. It delivers versatile analog polyphony and sequencing for compact desktop or performance rigs.
Sequential Prophet-6 49-Key Analog Synthesizer
Best for: six-voice analog sound design in 49 keys
- Number of Keys
- 49
- Color
- Black
- Dimensions
- 37.8 × 18.5 × 8.86 inches
- Weight
- 27.8 pounds
View on Amazon: Sequential Prophet-6 49-Key Analog Synthesizer
The Sequential Prophet-6 is a 6-voice polyphonic analog synthesizer built with discrete VCOs and filters. You get a 49-key layout paired with an enhanced Poly Mod section and an integrated dual effects section. At 37.8 inches long and 27.6 pounds, it provides a dedicated hardware keyboard setup. It suits you if you want a true six-voice analog sound engine without managing the footprint of a larger 61-key instrument.
Pros
- 6-voice polyphony with discrete VCOs and filters
- Onboard dual effects section
- Enhanced Poly Mod section for modulation
- Integrated 49-key keyboard
Cons
- 49-key limit offers less octave span than 61-key models
- Polyphony is limited to 6 voices
- Chassis weight is 27.6 pounds
Good fit if
- You want a 6-voice analog synth with discrete VCOs and filters.
- You prefer a self-contained 49-key instrument over an external module.
- You want built-in sound processing through dual effects and Poly Mod.
Skip if
- You require more than 6 voices of polyphony.
- You need a full 61-key playing surface.
- You prefer an ultra-light synth setup under 20 pounds.
Verdict: Sequential Prophet-6 49-Key Analog Synthesizer delivers 6-voice polyphony with discrete VCOs, filters, and dual effects in a medium-sized chassis. It offers a focused analog workflow for players who do not need a 61-key bed.
Sequential Prophet-10 10-Voice Analog Module
Best for: space-conscious setups needing 10-voice analog polyphony
- Sound Engine
- Analog
- Color
- Black
- Weight
- 11.6 pounds
View on Amazon: Sequential Prophet-10 10-Voice Analog Module
The Sequential Prophet-10 Module is a 10-voice polyphonic analog synthesizer designed as a desktop unit. It features an analog sound engine equipped with two voltage-controlled oscillators per voice, a 4-pole lowpass filter, Poly-Mod, and a dedicated LFO. At 11.6 pounds, it provides a compact hardware format without integrated keys. This setup suits you if you already own a dedicated MIDI controller and need ten voices of analog polyphony.
Pros
- 10-voice polyphony with an analog sound engine
- Two VCOs per voice, plus Poly-Mod and LFO
- Classic 4-pole lowpass filter design
- Weighs 11.6 pounds for desktop setups
Cons
- Desktop module format includes no built-in keyboard keys
- Modulation section is limited to Poly-Mod and a single LFO
Good fit if
- You already use a master MIDI controller or hardware sequencer.
- You want 10 voices of analog polyphony with dual VCO architecture.
- You need a compact 11.6-pound desktop module rather than a full keyboard.
Skip if
- You need an all-in-one synthesizer with an integrated keybed.
- You prefer digital synthesis or sampled instrument sounds over an analog engine.
Verdict: Sequential Prophet-10 10-Voice Analog Module delivers true 10-voice polyphony and classic dual-VCO architecture in a compact desktop chassis. It is an effective option if you want genuine analog sound shaping without sacrificing desk space for a full keybed.
Sequential Prophet Rev2 16-Voice Synthesizer
Best for: high-polyphony analog layering and sequencing
- Number of Keys
- 61-key
- Dimensions
- 41.3 × 18.7 × 9 inches
- Weight
- 26.2 pounds
View on Amazon: Sequential Prophet Rev2 16-Voice Synthesizer
The Sequential Prophet Rev2 is a 61-key polyphonic analog synthesizer equipped with 16 voices and dual DCOs per voice. It features 2/4-pole resonant lowpass Curtis filters, bi-timbral operation, waveshape modulation, and an onboard FX engine. A built-in polyphonic step sequencer lets you program complex patterns directly on the board. Weighing 26.2 pounds, this keyboard suits players who need high analog polyphony and sound-layering capabilities in a standard five-octave layout.
Pros
- 16 voices of polyphony with dual DCOs per voice
- Bi-timbral operation for splitting or stacking two patches
- Switchable 2/4-pole resonant lowpass Curtis filters
- Integrated polyphonic step sequencer and onboard FX engine
Cons
- Weighs 26.2 pounds, making it heavier to transport
- Substantial footprint at 41.3 inches long and 18.7 inches wide
Good fit if
- You need 16 analog voices to handle dense chords and bi-timbral splits
- You want a dedicated 61-key layout with onboard effects and sequencing
- You require waveshape modulation alongside resonant lowpass filtering
Skip if
- You need a compact, ultra-lightweight setup for frequent travel
- You require an 88-key piano-style weighted action
Verdict: Sequential Prophet Rev2 16-Voice Synthesizer delivers expansive 16-voice analog polyphony, dual DCOs, and bi-timbral flexibility across a 61-key frame. It provides extensive sound shaping and onboard sequencing without voice-stealing constraints.
Sequential Prophet-10 61-Key Analog Synthesizer
Best for: 10-voice analog synthesis with full-sized 61-key performance
- Number of Keys
- 61
- Key Action
- Semi-weighted Fatar, aftertouch
- Sound Engine
- Analog
- Dimensions
- 43 × 21.6 × 10.7 inches
- Weight
- 40.8 pounds
View on Amazon: Sequential Prophet-10 61-Key Analog Synthesizer
The Sequential Prophet-10 gives you a 10-voice polyphonic analog engine paired with a 61-key semi-weighted Fatar keybed. Its architecture features two VCOs per voice, a 4-pole lowpass filter, Poly-Mod, and aftertouch for real-time control. At 40.8 pounds, it is a substantial instrument designed for your studio desk or stage setup if you want a complete hardware polyphonic synthesizer with full-sized keys.
Pros
- 10-voice polyphonic analog engine with 2 VCOs
- Full-sized 61-key semi-weighted Fatar keybed with aftertouch
- Equipped with 4-pole lowpass filter and Poly-Mod
Cons
- Heavy build at 40.8 pounds
- Offers 61 keys rather than a full 88-key piano range
Good fit if
- You want 10 voices of analog polyphony on a 61-key Fatar keybed
- You use aftertouch and Poly-Mod for expressive sound shaping
- You have dedicated studio or stage space for a 43-inch, 40.8-pound instrument
Skip if
- You need a lightweight keyboard that is easy to move frequently
- You require an 88-key weighted piano keybed
Verdict: Sequential Prophet-10 61-Key Analog Synthesizer pairs a 10-voice dual-VCO analog sound engine with an expressive 61-key semi-weighted Fatar keybed. It delivers dedicated hardware controls and classic analog architecture for serious studio setups.
Sequential Prophet-5 5-Voice Analog Synthesizer Module
Best for: desktop setups needing 5-voice analog synthesis
- Sound Engine
- Analog
- Color
- Black
- Weight
- 11.3 pounds
View on Amazon: Sequential Prophet-5 5-Voice Analog Synthesizer Module
The Sequential Prophet-5 Module is a 5-voice polyphonic analog synthesizer built in a desktop module format. If you want classic analog sound without the space required for an integrated keybed, this 11.3-pound unit delivers. Its sound engine features two VCOs per voice, a 4-pole lowpass filter, Poly-Mod, and a dedicated LFO. You can easily integrate it into your existing setup.
Pros
- 5-voice polyphony with an all-analog sound engine
- Two voltage-controlled oscillators (2 VCOs) per voice
- Includes 4-pole lowpass filter, Poly-Mod, and LFO
- Compact module format weighing 11.3 pounds
Cons
- No built-in keyboard or physical keys
- Limited to 5 voices of polyphony
Good fit if
- You already have a dedicated MIDI keyboard controller or studio rig.
- You want a pure analog sound engine with two VCOs and a 4-pole lowpass filter.
- You need a compact desktop synth unit weighing 11.3 pounds.
Skip if
- You need an all-in-one instrument with an integrated keyboard.
- You require more than 5 voices of polyphony for complex chord arrangements.
Verdict: Sequential Prophet-5 5-Voice Analog Synthesizer Module packages authentic analog sound design into an 11.3-pound desktop chassis. It is a practical addition if you already own a controller and want a dedicated 5-voice analog engine.
Sequential Pro 3 Mono Synth
Best for: monophonic sound design and multi-filter synthesis
- Color
- Black
- Dimensions
- 34 × 21 × 11 inches
- Weight
- 22.2 pounds
The Sequential Pro 3 Mono Synth is a dedicated multi-filter monophonic synthesizer finished in black. Measuring 34 inches long, 21 inches wide, and 11 inches high, it provides a substantial desktop or stand footprint and weighs 22.2 pounds. If you need a specialized mono synth from Sequential rather than the polyphonic models across the rest of the lineup, this hardware unit gives you dedicated single-voice sound shaping.
Pros
- Multi-filter monophonic synthesis architecture
- Substantial 34 by 21 inch chassis footprint
- Classic black casing
Cons
- Monophonic design with no polyphony listed
- Heavier profile at 22.2 pounds
- Requires significant stand space at 34 inches long
Good fit if
- You need a dedicated monophonic synth with multi-filter shaping.
- You have desk or stand space for a 34 by 21-inch chassis.
- You prefer a sturdy 22.2-pound black synthesizer.
Skip if
- You need polyphony to play multi-note chords.
- You want an ultra-compact keyboard for tight spaces.
Verdict: Sequential Pro 3 Mono Synth delivers focused multi-filter monophonic synthesis within a substantial 22.2-pound chassis. It stands apart from the brand's polyphonic models by prioritizing single-voice sound design.
Sequential Prophet-5 61-Key Analog Synthesizer
Best for: players wanting a 61-key 5-voice analog synthesizer
- Number of Keys
- 61
- Sound Engine
- Analog
- Dimensions
- 43.3 × 21.8 × 10.8 inches
- Weight
- 39.6 pounds
View on Amazon: Sequential Prophet-5 61-Key Analog Synthesizer
The Sequential Prophet-5 61-Key Analog Synthesizer gives you a full-sized 61-key layout paired with a dedicated 5-voice analog sound engine. Its hardware measures 43.3 inches long by 21.8 inches wide and weighs 39.6 pounds. If you need a traditional five-voice polyphonic instrument with physical keys rather than a desktop module, this synthesizer suits your studio desk or stage stand setup.
Pros
- Full-sized 61-key layout
- Dedicated 5-voice analog sound engine
- Substantial build weighing 39.6 pounds
Cons
- Limited to 5 voices of polyphony
- Large footprint measuring 43.3 inches long and 21.8 inches wide
- Heavy 39.6-pound weight reduces portability
Good fit if
- You want a full-sized 61-key keyboard with an analog sound engine.
- You prefer a dedicated 5-voice polyphonic instrument.
- You have adequate studio desk space for a 43.3-inch long synth.
Skip if
- You require more than 5 voices of polyphony for complex chords.
- You need a lightweight keyboard that is easy to transport.
Verdict: Sequential Prophet-5 61-Key Analog Synthesizer delivers classic five-voice analog synthesis across a full-sized 61-key layout. It provides a dedicated physical keyboard setup for players who prefer an integrated instrument over a desktop module.
Sequential Oberheim OB-6 6-Voice Synthesizer
Best for: expressive 6-voice analog sound design and sequencing
- Key Action
- Semi-weighted
- Color
- Black
- Dimensions
- 37.5 × 18.3 × 8.25 inches
- Weight
- 2 pounds
View on Amazon: Sequential Oberheim OB-6 6-Voice Synthesizer
The Sequential Oberheim OB-6 is a 6-voice polyphonic analog synthesizer built with a semi-weighted keybed. It offers velocity and aftertouch sensitivity, giving you dynamic physical control over your sound. Each voice features two oscillators alongside a sub oscillator, paired with a state-variable filter and an onboard 64-step polyphonic step sequencer. It suits musicians who want classic Oberheim analog architecture combined with expressive keyboard performance tools in a single hardware unit.
Pros
- 6-voice polyphony with two oscillators and a sub oscillator per voice
- Semi-weighted keyboard with velocity and aftertouch sensitivity
- Built-in 64-step polyphonic step sequencer
- Analog state-variable filter per voice
Cons
- Polyphony is limited to 6 voices
- Semi-weighted keys rather than fully weighted hammer action
Good fit if
- You want analog polyphony with dedicated sub oscillators per voice
- You need expressive control via velocity and aftertouch
- You plan to build complex patterns using a built-in 64-step polyphonic sequencer
Skip if
- You need more than 6 voices of polyphony for complex arrangements
- You require fully weighted hammer-action piano keys
Verdict: Sequential Oberheim OB-6 6-Voice Synthesizer combines a classic analog voice architecture with a responsive, aftertouch-enabled semi-weighted keyboard.
Sequential Prophet X Hybrid Synthesizer
Best for: hybrid sample synthesis and sound design
- Key Action
- Semi-weighted, aftertouch-enabled
- Dimensions
- 44.5 × 18.5 × 8.2 inches
- Weight
- 31.5 pounds
The Sequential Prophet X Hybrid Synthesizer is a 16-voice instrument combining sample playback with synthesis. You get two 16-bit, 48kHz sample-based instruments, two digital oscillators, and stereo analog filters. Its semi-weighted keyboard includes aftertouch for expressive performance control, backed by a built-in 150GB sample library. At 31.5 pounds and 44.5 inches wide, it suits you if you require extensive sample manipulation alongside classic analog filter shaping.
Pros
- 16-voice hybrid engine with 2 digital oscillators and stereo analog filters
- Internal 150GB sample library with two simultaneous sample-based instruments
- Semi-weighted keybed equipped with aftertouch control
- Supports 16-bit, 48kHz sample playback
Cons
- Semi-weighted action lacks the hammer weight of an acoustic piano keybed
- Substantial 31.5-pound weight and 44.5-inch length require dedicated desk or stand space
Good fit if
- You want to combine deep sample playback with stereo analog filters.
- You need 16 voices of polyphony paired with an aftertouch-capable keybed.
- You prefer having an extensive 150GB factory sample library built into the hardware.
Skip if
- You require fully weighted hammer keys for classical piano performance.
- You need an ultra-compact or lightweight keyboard for easy travel.
Verdict: Sequential Prophet X Hybrid Synthesizer delivers expansive sound design capabilities by pairing a 150GB sample library with 16-voice hybrid synthesis and stereo analog filters.
Sequential Prophet Rev2 8-Voice Synthesizer
Best for: bi-timbral 8-voice analog sound design
- Number of Keys
- 61-key
- Color
- Black
- Dimensions
- 41.5 × 19 × 9 inches
- Weight
- 0.43 ounces
The Sequential Prophet Rev2 8-Voice Synthesizer is a 61-key analog keyboard designed for flexible sound design. It provides eight voices of polyphony featuring dual DCOs per voice, bi-timbral operation, and 2/4-pole resonant lowpass Curtis filters. You also have access to waveshape modulation, an onboard FX engine, and an integrated polyphonic step sequencer. It suits you if you want a dedicated 61-key polyphonic analog instrument for studio arrangements and stage performance.
Pros
- 8-voice polyphony with dual DCOs per voice
- 2/4-pole resonant lowpass Curtis filters
- Bi-timbral operation and polyphonic step sequencer
- Integrated FX engine and waveshape modulation
Cons
- Polyphony is capped at 8 voices
- Requires significant setup space at 41.5 inches in length
Good fit if
- You want an 8-voice polyphonic analog synth with dual DCOs per voice.
- You need a 61-key keybed with bi-timbral operation.
- You plan to use onboard effects and an integrated step sequencer.
Skip if
- You need more than eight voices of polyphony.
- You have limited room for a 41.5-inch wide keyboard frame.
- You prefer a compact desktop synth module without keys.
Verdict: Sequential Prophet Rev2 8-Voice Synthesizer delivers 8-voice polyphony, dual DCOs, and Curtis lowpass filtering across a 61-key layout. Its bi-timbral architecture, waveshape modulation, and onboard FX engine make it a versatile analog instrument.
Sequential Prophet 6 Keyboard
Best for: medium-sized Prophet 6 studio setups
- Dimensions
- 8.5 × 18.3 × 8.5 inches
The Sequential Prophet 6 Keyboard is a medium-sized keyboard instrument finished in a multicolored design. It measures 18.3 inches wide by 8.5 inches high and 8.5 inches long, shipping in a 27.2-pound package that measures 37.5 by 18.25 by 8.5 inches. If you want a dedicated Prophet 6 model hardware keyboard from Sequential with medium dimensions for your studio or stage stand, this unit delivers standard Prophet 6 specifications in a single package.
Pros
- Medium-sized physical footprint
- Packaged shipping weight of 27.2 pounds
- Multicolored exterior design
Cons
- Key count is omitted from the published specifications
- Voice count and polyphony details are not listed in the data
Good fit if
- You want a Sequential Prophet 6 model in a medium size.
- You need a keyboard that fits within an 18.3-inch width profile.
Skip if
- You need full voice architecture and polyphony specifications listed upfront.
- You need a lightweight instrument with a total shipping weight under 25 pounds.
Verdict: Sequential Prophet 6 Keyboard provides a medium-format Prophet 6 hardware unit with a multicolored finish for your studio desk or keyboard stand.
Specifications side by side
| Spec | Sequential Prophet-6 Desktop Module | Sequential Fourm 37-Key Analog Synthesizer | Sequential Prophet-6 49-Key Analog Synthesizer | Sequential Prophet-10 10-Voice Analog Module | Sequential Prophet Rev2 16-Voice Synthesizer | Sequential Prophet-10 61-Key Analog Synthesizer | Sequential Prophet-5 5-Voice Analog Synthesizer Module | Sequential Pro 3 Mono Synth | Sequential Prophet-5 61-Key Analog Synthesizer | Sequential Oberheim OB-6 6-Voice Synthesizer | Sequential Prophet X Hybrid Synthesizer | Sequential Prophet Rev2 8-Voice Synthesizer | Sequential Prophet 6 Keyboard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Keys | not specified | 37 | 49 | not specified | 61-key | 61 | not specified | not specified | 61 | not specified | not specified | 61-key | not specified |
| Key Action | not specified | Polyphonic Aftertouch | not specified | not specified | not specified | Semi-weighted Fatar, aftertouch | not specified | not specified | not specified | Semi-weighted | Semi-weighted, aftertouch-enabled | not specified | not specified |
| Sound Engine | not specified | not specified | not specified | Analog | not specified | Analog | Analog | not specified | Analog | not specified | not specified | not specified | not specified |
| Color | Multicolor | Black | Black | Black | Multicolor | Black,white,brown | Black | Black | Multicolor | Black | Multicolor | Black | MultiColored |
| Dimensions | 25.4 × 11.8 × 8.75 inches | 28 × 13.4 × 6.9 inches | 37.8 × 18.5 × 8.86 inches | not specified | 41.3 × 18.7 × 9 inches | 43 × 21.6 × 10.7 inches | not specified | 34 × 21 × 11 inches | 43.3 × 21.8 × 10.8 inches | 37.5 × 18.3 × 8.25 inches | 44.5 × 18.5 × 8.2 inches | 41.5 × 19 × 9 inches | 8.5 × 18.3 × 8.5 inches |
| Weight | 10 pounds | not specified | 27.8 pounds | 11.6 pounds | 26.2 pounds | 40.8 pounds | 11.3 pounds | 22.2 pounds | 39.6 pounds | 2 pounds | 31.5 pounds | 0.43 ounces | not specified |
| Model | DSI-1600 | SEQ-3900 | DSI-2600 | SEQ1110 | DSI-2816 | Prophet 10 | SEQ1100 | SEQ-3400 | 5 | SEQDSI-2700 | DSI-2500 | DSI-2808-08 | Prophet 6 |
| Size | not specified | not specified | medium | not specified | not specified | 21.6 x 43 x 10.7 inches | not specified | not specified | Full-Sized | not specified | not specified | 19 x 41.5 x 9 inches | medium |
Sequential Keyboards at a Glance
The list spans compact desktop modules to full-sized instruments. The Prophet-6 Desktop Module and Fourm 37-Key Analog Synthesizer offer space-saving solutions for limited desks. These units prioritize core analog engines without the bulk of a full keybed. You get discrete sound design in a smaller footprint.
Other models include the Prophet-6 49-Key and Prophet-10 61-Key Analog Synthesizer for players needing more keys. The Prophet Rev2 16-Voice Synthesizer provides high polyphony for complex layering. You can choose based on whether you need a module or an integrated keyboard with semi-weighted keys.
Who Sequential Keyboards Suit
Sequential targets studio-focused musicians who prioritize hardware analog synthesis. The range spans from compact desktop modules to 61-key instruments. You can choose space-saving units like the Prophet-6 Desktop Module or the Fourm for tight desks. Larger options include the Prophet Rev2 and Prophet-10 for full performance setups. Colors are mostly black, with some multicolor finishes. The lineup covers mono, polyphonic, and hybrid synthesis. However, the list lacks 88-key weighted options. You also will not find portable or battery-powered models here. This brand suits stationary studio environments.
If you want typing equipment rather than music hardware, compare switches among the best mechanical keyboards for office.
Choosing Sequential Keyboards By Specs
-
Check Polyphony Needs
Decide how many voices you need simultaneously. The Prophet-10 Module offers ten voices, ideal for dense chords. The Prophet-6 provides six voices for standard layering. The Prophet Rev2 scales up to sixteen voices for complex textures. The Prophet-5 models stick to five voices. Fewer voices mean simpler routing but less density. Match this number to your typical playing style. More voices allow richer harmonies without voice stealing.
-
Evaluate Keybed Size
Select a keybed that fits your performance style. The Fourm offers 37 keys for compact setups. The Prophet-6 49-Key model provides a medium span. The Prophet Rev2 and Prophet-10 61-Key models feature full 61-key layouts. Larger beds suit pianists and chordal players. Smaller beds save desk space. Consider your reach and comfort. A 61-key bed offers standard range. A 37-key bed is highly portable.
-
Assess Physical Footprint
Measure your desk space before buying. The Prophet-6 Desktop Module is 25.4 inches long. The Prophet Rev2 16-Voice unit is 41.3 inches long. The Prophet-10 61-Key model is the largest at 43 inches. Height varies from 6.9 inches to 11 inches. Weight ranges from 10 pounds to 40.8 pounds. Ensure your stand or desk supports the weight. Compact modules fit tight rigs. Full units need dedicated space.
-
Choose Form Factor
Determine if you need a standalone instrument or a module. Desktop modules like the Prophet-6 and Prophet-5 save space. They connect to existing controllers. Standalone units like the Prophet-10 61-Key include built-in keybeds. Modules require an external keyboard. Standalone units are all-in-one solutions. Choose modules for hybrid setups. Choose standalone units for dedicated performance rigs. This choice dictates your entire signal chain.
-
Review Control Layout
Examine the physical controls for your workflow. The Prophet-10 61-Key features a Fatar semi-weighted keybed with dedicated hardware controls. The Prophet Rev2 includes bi-timbral flexibility and onboard sequencing. Modules often prioritize raw sound engines. Some units include polyphonic aftertouch. Others focus on discrete analog architecture. Match the control density to your needs. Hardware controls offer tactile feedback. Software control requires a computer.
Frequently asked questions
Which Sequential keyboard has the most voices?
The Prophet Rev2 16-Voice Synthesizer offers the highest polyphony at sixteen voices. This allows for complex layering and sequencing without voice-stealing constraints. It features dual DCOs and bi-timbral flexibility across a 61-key frame, making it suitable for dense textures.
What is the lightest Sequential synthesizer module?
The Prophet-5 Module is the lightest option at 11.3 pounds. It packages authentic analog sound design into a compact desktop chassis. This makes it a practical addition if you already own a controller and need a dedicated five-voice analog engine.
Does Sequential offer a monophonic synthesizer?
Yes, the Pro 3 Mono Synth delivers focused multi-filter monophonic synthesis. It stands apart from the brand's polyphonic models by prioritizing single-voice sound design. The unit sits in a substantial 22.2-pound chassis, offering distinct control over individual tones.
Which model includes polyphonic aftertouch?
The Fourm 37-Key Analog Synthesizer provides polyphonic aftertouch in a compact footprint. It includes two VCOs and deep modulation routing for versatile analog polyphony. This feature supports expressive performance in tight desktop or live performance rigs.
Is there a Sequential keyboard with a sample library?
The Prophet X Hybrid Synthesizer pairs a 150GB sample library with hybrid synthesis. It combines stereo analog filters with expansive sound design capabilities. This model offers a unique approach by integrating sampled audio with traditional analog signal processing.
Which Sequential unit is best for a small desk?
The Prophet-6 Desktop Module is designed for space-saving setups. It measures 11.8 inches wide and weighs 10 pounds. This format allows you to connect the hardware synthesis engine directly to your existing keyboard rig without taking up much desk space.
Does the Prophet-10 come in a keyboard version?
Yes, the Prophet-10 61-Key Analog Synthesizer pairs a ten-voice dual-VCO engine with a 61-key semi-weighted Fatar keybed. It delivers dedicated hardware controls and classic analog architecture for serious studio setups, offering a full-sized performance layout compared to the module version.
What is the largest Sequential synthesizer by length?
The Prophet X Hybrid Synthesizer is the longest unit at 44.5 inches. It weighs 31.5 pounds and provides a large surface for its extensive controls. This size accommodates its hybrid synthesis engine and stereo analog filters within a single integrated chassis.












