Sequential Prophet 10 Keyboard

OSCILLATORS

• Two authentic CEM 3340 VCOs per voice
• Simultaneously selectable wave shapes. Oscillator A: sawtooth, pulse. Oscillator B: sawtooth, triangle, pulse.
• Pulse width per oscillator
• Hard sync: oscillator 1 syncs to oscillator 2
• Low frequency mode (oscillator 2)
• Keyboard tracking on/off (oscillator 2)

MIXER

• Oscillator 1 amount
• Oscillator 2 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

Full-sized, semi-weighted, premium Fatar 5-octave keyboard with velocity and aftertouch
Mod wheel
Spring-loaded pitch wheel with selectable range per program (1 to 12 semitones up and down)
Polyphonic glide (portamento)
Unison (monophonic) mode with configurable voice count, from one to all ten 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-10. 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; 28 watts maximum power consumption
PHYSICAL SPECS
37.37” L x 16.35 W x 5.95″ H (94.92 cm x 41.52 cm x 15.11 cm)
32 lbs (14.51 kg)
Roadworthy all-steel construction with premium black walnut heartwood body and trim