Sequential Prophet 10 Module

Legendary 10 Voice Analogue Polyphonic Synthesiser

The Ultimate Prophet-10 from Synth Legend Dave Smith

Renowned synth designer Dave Smith is back, and he’s brought with him the most powerful Prophet-10 yet! A reimagination of the iconic 10-voice polyphonic synth, the Prophet-10 Rev4 is packed with features from every iteration of the Prophet-10. It inherits its ultra-stable voltage-controlled oscillators from the Rev3 and provides you with a choice between the Rev1 and Rev2’s Rossum-designed filter or the Rev3’s Curtis-designed filter. A unique vintage knob even lets you choose from behavior characteristics of the earlier versions. With its knob-per-function architecture, the Prophet-10 never fails to inspire! To get you started right out of the box, the Prophet-10 comes loaded with a stellar selection of factory presets, and it includes 200 user slots for storing your custom-made patches. Dave Smith and the folks at Sequential struck gold with the Prophet-10, a drool-worthy synth for analog aficionados!

Rock-solid oscillators

The twin beating hearts of the Prophet-10 are its dual Curtis analog CEM 3340 VCOs. Found on Rev3 Prophet-10s, the CEM 3340 VCOs are rock solid, with virtually no tuning drift. Their implementation in the Rev3 represented a major turning point in the design of the Prophet-10, enhancing the performance and sonic quality of the powerhouse synth. As on the legacy models, the Prophet-10 Rev4 offers simultaneous selectable waveshapes — sawtooth and pulse on oscillator A, and sawtooth, pulse, and triangle on oscillator B, with pulse width modulation on both and hard sync for shaping the timbres of the oscillators. With the CEM 3340 VCOs, you have the ideal building blocks for creating harmonically rich analog patches.

Lush, dreamy analog filters

Dave and the team at Sequential went above and beyond for the Prophet-10’s filter section. Users can choose from two authentic re-creations of classic four-pole resonant lowpass filters — the Dave Rossum-designed 2140 (a modern update of the original 2040 found on the Rev1 and Rev2), and the Doug Curtis-designed CEM 3320. The 2140 is perfect for gristly bass lines and dense, sweeping pads, while the 3320 excels at dialing in laser-sharp high end for cutting lead lines. Both filters can be driven into maddening self-oscillation, and a dedicated 4-stage ADSR filter envelope gives you ample control over shaping the behavior of the filters.

Mountains of modulation

If you’re the kind of synthesist who likes to strip things back to the INIT patch and dig into some serious sound design, then the Prophet-10 is for you! Though simple, its modulation controls give you incredible flexibility to create vintage-style basses, leads, pads, brass, and strings, or generate brain-bending textures and effects. The Prophet-10’s single LFO offers three simultaneous waveshapes — sawtooth, triangle, and square — and an initial amount control. Use the LFO for pitch modulation and PWM of oscillators A and B or send it to the filter cutoff. And assign any of the mod destinations to an external mod wheel. Additionally, Prophet-10’s Poly-Mod section lets you use the filter envelope and oscillator B as mod sources for affecting oscillator A’s frequency and pulse width, as well as the filter cutoff.

Deluxe performance controls

One of the most appealing aspects of analog synthesizers is the tactile experience of interacting with their knobs, switches, sliders, and wheels — and the Prophet-10 has plenty! With a knob-per-function design, the Prophet-10 treats you with detailed control over every parameter, so you can turn patches into living, breathing performances. Plus, the Prophet-10 includes inputs for volume, filter cutoff, and sustain.

Crank up the vintage vibe

While inspired by vintage Prophet-10s, this latest iteration boasts modern reliability and high-fidelity sonics. But what if you want to inject a little bit of old-school instability into your sound? No problem! The Prophet-10 features a nifty Vintage control knob that lets you alter the behavior according to its revision model. Keep it pristine or go back in time all the way to the rare and highly temperamental Rev1. Do you think part of the charm of vintage analog synths is their unpredictability? Then you’ll dig this feature!

Sequential Prophet-10 Module Features:

• 10-voice polyphonic synth with pure analog signal chain
• Dual Curtis VCOs with PWM and hard sync
• 2 Selectable filter types — Rossum-designed 2140 and Curtis-designed CEM 3320
• LFO with sawtooth, triangle, and square waveshapes and initial amount control
• Modulation destinations include oscillator A and B frequency, pulse width modulation, and filter cutoff
• Knob-per-function architecture inspires expressive performance
• Unison mode with configurable voice count for fat monophonic tones
• Polyphonic glide
• 200 user and 200 factory patch memory slots
• USB MIDI and 5-pin MIDI in/out/thru
• Volume, filter cutoff, and sustain pedal inputs
• Mod line and stereo headphone outputs

Prophet-10 Module Specifications

OSCILLATORS

• Two authentic CEM 3340 voltage-controlled oscillators per voice
• Simultaneously selectable wave shapes. Oscillator A: sawtooth, pulse. Oscillator B: sawtooth, triangle, pulse.
• Pulse width per oscillator
• Hard sync: Oscillator A syncs to Oscillator B
• Low frequency mode (Oscillator B)
• Keyboard tracking on/off (Oscillator B)

MIXER

• Oscillator A amount
• Oscillator B amount
• White noise amount

LOW-PASS FILTER

• Four-pole, resonant, low-pass filter per voice
• Switchable between authentic versions of the Prophet-5 Rev1/2 filter and Prophet-5 Rev3 filter
• Rev1/2 filter is a Dave Rossum-designed 2140, the modern counterpart of the original 2040 filter found in the Prophet-5 Rev1 and Rev2
• Rev3 filter is a Doug Curtis-designed CEM 3320
• Filter can be driven into self-oscillation with the Resonance control
• Keyboard tracking: off, half, full

FILTER ENVELOPE

• Four-stage (ADSR) envelope generator
• Velocity modulation of envelope amount

AMPLIFIER ENVELOPE

• Four-stage (ADSR) envelope generator
• Velocity modulation of envelope amount

LOW FREQUENCY OSCILLATOR

• Three wave shapes: sawtooth, triangle, square. All waveshapes can be engaged simultaneously
• Both Initial Amount and mod wheel control
• Mod destinations: oscillator A frequency, Oscillator B frequency, Oscillator A and B pulse width, filter cutoff

POLY MOD

• Sources: filter envelope and Oscillator B
• Destinations: Oscillator A frequency, Oscillator A pulse width, filter cutoff

VINTAGE KNOB

• Recreates the characteristics of various Prophet-5 models by varying the behavior of oscillators, envelopes, amplifiers, and other parameters. Go from a very stable “4” — as in Prophet-5 Rev4, (the new version) — all the way to “1,” as in Prophet-5 Rev1, the rarest and most temperamental of all Prophet-5s.

AFTERTOUCH

• Channel (mono) aftertouch
• Destinations: filter cutoff frequency, LFO amount

BI-TIMBRAL OPERATION

• Layer mode: two different 5-voice programs stacked together simultaneously
• Split mode: two independent, user-assignable performance zones, with a different 5-voice program assigned to each.

PERFORMANCE CONTROLS

• Polyphonic glide (portamento)
• Unison (monophonic) mode with configurable voice count, from one to all five voices and key modes
• Preset switch: when off, the front panel is live; what you see is what you hear

PATCH MEMORY

• 200 user and 200 factory programs in 5 banks of 40 programs each
• Direct program access, including Prophet 5-style single-button access to the current set of 8 programs

IN/OUT

• Mono output (1 x 1/4” phone jack)
• Headphone output (stereo, 1/4” phone jack)
• MIDI in, out, and thru ports
• USB for bidirectional MIDI communication
• Control voltage in/out (1 x 1/4” phone jack) 0- +5V input/output signal. Configured for 1-volt-per-octave operation.
• Gate in/out (1 x 1/4” phone jack). Accepts a 1.5 to 15-volt on/off signal to gate the envelopes of a single voice on the Prophet-5. Outputs a 15-volt on/off used to gate the envelopes of an external synth.
• Low-pass filter cutoff expression pedal input
• Volume expression pedal input
• Sustain footswitch input

POWER

• IEC AC power inlet for internal power supply
• Operates worldwide on voltages between 100 and 240 volts at 50 to 60 Hz; Prophet-5: 20 watts maximum power consumption.

PHYSICAL SPECS

• 20.75″ L x 7.4″ W x 3″ H (52.70 cm x 18.8 cm x 7.62 cm)
• Roadworthy all-steel case with premium black walnut heartwood trim