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Sequential Circuits Pro 3

Hybrid Synth (2020)

Pro3

Overview and synthesis

KEYBOARD  A compact 3-octaves keyboard, with  60 knobs and 70 buttons, it's basically a classic monophonic synthesier with 3-voice paraphonic mode. Two editions have been released:
- The Pro 3 standard edition black
-  The Pro 3 Special edition,  same synthesis  into a collector with Minimoog-like tilt-up control panel and walnut trim.

OSCILLATOR Two voltage controlled oscillators provide traditional triangle, saw, and pulse waves with waveshaping, while a third digital wavetable oscillator provides 32 tables of 16 waves each with wave morphing. Also White noise generator and hard sync mode.

Sequential circuits pro3
2 versions 

Filter, EG and LFO

FILTER Three vintage-style filters shape the sound of these oscillators with Drive control provides additional punch to all three filters:
- Filter 1 is a 4-pole low-pass design based on the Prophet-6 filter
 -Filter 2 is a classic Moog transistor ladder filter with optional resonance compensation to preserve its low-end punch.
- Filter 3 is a classic 2-pole, state-variable design based on the OB-6 filter that can be continuously varied between low-pass, notch, and high-pass operation, with an optional band-pass mode. 

ENVELOPE   4X ADSR delayed envelopes with delay with loop segment mode

LFO  Three syncable modulators with phase offset and slew per LFO and 5 waveshapes: triangle, saw, reverse saw, square, and S&H 

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Arpeggiator,  sequencer and memory

ARPEGGIATOR   up, down, up+down, random, assign/latch modes with Syncs to MIDI clock and external audio and CV inputs 

SEQUENCER
  16-track sequences of up to 64 steps, with ratcheting, variable gate and sequence lengths, multiple playback modes, and paraphonic operation. It also syncs to MIDI clock and external audio input, and inputs/outputs control voltages. In addition to notes, sequence tracks can control any parameter in the 32-slot, 171-destination modulation matrix.


MEMORY 512 user and 512 factory programs

Pro3

PRO3 Technical Data

PRO 3 SPECIFICATIONS

3 OSCILLATORS
  • Two analog, voltage-controlled oscillators
  • One DSP-based digital oscillator
  • Analog oscillators produce three classic wave shapes: (triangle, saw, pulse) with variable shape modulation/pulse width on each
  • Digital oscillator produce 32 digital wavetables of 16 waves each with wave morphing, plus classic wave shapes (sine, triangle, saw, variable-width pulse) and super saw
  • Digital oscillator 3 can function as an LFO for complex wavetable-based modulation
  • White noise generator
  • Hard sync, per-oscillator Glide, Oscillator Slop
3-Voice PARAPHONIC PLAYABILITY
  • 3-voice paraphonic mode with individually-gated envelopes per oscillator
3 FILTERS
  • Three classic filter types
  • Filter 1 is a 4-pole, 24 dB per-octave, Prophet-6™ low-pass filter
  • Filter 2 is a classic, 4-pole, 24 dB per-octave, transistor ladder filter with optional resonance compensation
  • Filter 3 is a 2-pole, 12 db per-octave, OB-6™ state-variable filter. It can be continuously varied between low-pass, notch, and high-pass operation, with an optional band-pass mode.
3 LFOS
  • Three syncable LFOs with phase offset and slew per LFO
  • Five waveshapes: triangle, saw, reverse saw, square, and S&H
4 ENVELOPES
  • Four ADSR envelopes with delay (Filter, VCA, and two Auxiliary envelopes)
  • Envelopes freely assignable to multiple modulation destinations
  • All envelopes can repeat/loop
DIGITAL EFFECTS
  • Dual digital effects
  • Stereo delay, BBD delay, chorus, flanger, phaser, ring mod, vintage rotating speaker, distortion, high-pass filter, super plate reverb
FEEDBACK AND DISTORTION
  • Tuned feedback with Grunge for extra-aggressive tonal destruction
  • Programmable analog distortion
32-Slot MODULATION MATRIX
  • 32 slot modulation matrix with over 46 mod sources and over 171 mod destinations
  • Modulation assignment buttons enable quick and easy modulation routing
  • Mod Matrix runs at audio rates
4 CONTROL VOLTAGE INS & OUTS AND GATE OUT
  • Four control voltage (CV) inputs and outputs for interfacing with modular synths and other CV-compatible devices
  • Parameters that can be sent to CV outputs include oscillators, LFOs, envelopes, sequencer tracks and any other source within the modulation matrix. Runs at audio rates.
  • Gate Out for triggering external CV-compatible devices. Any CV in can be used as a gate input.
16-track SEQUENCER
  • Advanced sequencer with three modes: normal, gated, and trigger
  • 16 tracks and 4 linkable 16-step phrases
  • Per-step ratcheting, duration, and velocity
  • Multiple playback modes: forward, reverse, forward/reverse, random
  • Supports real-time/step input, rests, and variable-length sequences
  • Syncs to MIDI clock and external audio and CV input
  • Sequences freely assignable to any modulation destination
ARPEGGIATOR
  • Sophisticated arpeggiator with up, down, up+down, random, assign modes
  • Syncs to MIDI clock and external audio and CV inputs
  • Re-latching arpeggiation
  • Runs concurrent with Sequencer for arpeggiated patterns with parameter automation
CONTROLS
  • Over 60 knobs and 70 buttons enable deep, comprehensive editing with minimal menu diving
  • Backlit pitch and mod wheels are easily visible in low-light situations and have a smooth, precise response.
  • Independently adjustable upper and lower pitch wheel range
  • Position-sensitive latchable touch slider for enhanced interactivity and control
  • Full-sized, three-octave, semi-weighted keyboard with velocity and aftertouch
MEMORY
  • 512 user and 512 factory programs
  • Playlist mode for generating easily accessible set lists of your favorite programs
IN/OUT
  • 1 MIDI In, 1 MIDI Out, and 1 MIDI Thru/Out 2 port
  • USB port for bidirectional MIDI communication
  • 4 CV inputs (4 x 1/8″ jack) with -10v to +10v voltage range
  • 4 CV outputs (4 x 1/8″ jack) with -10v to +10v voltage range
  • 1 Gate Out  (1/8″ jack)
  • 1 Sustain/footswitch input
  • 1 Expression pedal input
  • 1 External audio input  (1/4″ phone jack)
  • Main stereo output (2 x 1/4″ phone jack)
  • Headphone out (stereo 1/4″ phone jack)
POWER
  • 1 universal IEC AC power inlet for internal power supply
  • Operates worldwide on voltages between 100-240v, 50-60Hz, 30 watts maximum power consumption
PHYSICAL SPECS
  • Premium, 3-octave, semi-weighted Fatar keyboard
  • 26.5″ L x 13″ W x 3.5″ H (67.3 cm x 33 cm x 8.9 cm)
  • Weight: 16 lbs (7.25 kg)

Sequential circuits

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Sequential circuits PRo3 Sequential circuits PRO3
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