Gear Hunter

Bold, Timeless Sound and Popular Prophet-6/OB-6 Form Factor

The Trigon-6 is Sequential's polyphonic take on the classic, thick and creamy, 3-oscillator-plus-ladder-filter analog sound that defined the dawn of the synth era. It's a sound that bridges genres and styles - now refined and redefined with Sequential's own modern imprint.

The Trigon-6 features three newly-designed, discrete voltage-controlled oscillators per voice, with simultaneously selectable waveshapes (triangle, sawtooth, reverse sawtooth, and variable-width pulse). The 2- and 4-pole ladder filter design with feedback and drive puts Sequential's own stamp on the classic transistor ladder filter sound that has proven its appeal since the dawn of the synth era. Analog voltage-controlled amplifiers complete the analog signal path.

The Trigon-6 takes inspiration from its acclaimed stablemates, the Prophet-6 and OB-6, borrowing their form factor and easy-to-navigate knob-per-fuction panel design. Also present is the much-loved Poly Mod section, also with enhancements. Modulation sources are filter envelope and oscillator 3 (both with bi-polar control). Destinations include oscillator 1, 2, and 3 frequency, oscillator 1, 2, and 3 pulse width, low-pass filter cutoff, and feedback. Another welcome reprise is Unison mode, which features configurable voice count (1-6 voices) and key modes.

The knob-per-function front panel is free of menu-diving, offering immediate access to virtually all parameters. Toggling off the Preset switch enables live panel mode, in which the sound of the instrument switches to the current settings of its knobs and switches.

A dual effects section provides studio-quality reverbs, delays (including modeled digital and analog types), chorus, flanger, phase shifter, and ring modulation. While the effects themselves are digital, with 24-bit, 48 kHz resolution, a true bypass maintains a full analog signal path. An independent stereo distortion is also provided and is 100% analog.

Additionally, the Trigon-6 features a multimode arpeggiator and a polyphonic step sequencer with up to 64 steps (and up to 6 notes per step) plus rests. It allows polyphonic keyboard input and can sync to external MIDI clock. The full-size, four-octave, premium, Fatar semi-weighted keyboard is velocity and aftertouch sensitive.

Specifications

OSCILLATORS
* Three discrete VCOs per voice
* Simultaneously selectable wave shapes: triangle, sawtooth, reverse sawtooth, and variable-width pulse
* Pulse width per oscillator
* Hard sync: oscillator 1 syncs to oscillator 2
* Low frequency mode (oscillator 3)
* Keyboard tracking on/off (oscillator 3)
* Oscillator feedback and drive controls for increased signal saturation
* White Noise source
* Keyboard pitch tracking on/off

LOW-PASS FILTER
* Switchable two/four-pole, discrete, resonant, low-pass, ladder filter per voice
* Filter can be driven into self-oscillation with the Resonance control
* Bi-polar filter envelope amount
* Velocity modulation of envelope amount
* 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
* Five wave shapes: sine, sawtooth, reverse sawtooth, square, and random (sample and hold)
* LFO sync
* Initial amount
* Mod destinations: oscillator 1 frequency, oscillator 2 frequency, oscillator 3 frequency, oscillator 1 pulse width, oscillator 2 pulse width, oscillator 3 pulse width, filter cutoff, amp (VCA)

POLY MOD
* Sources: oscillator 3 (bi-polar) and filter envelope (bi-polar)
* Destinations: oscillator 1 frequency, oscillator 2 frequency, oscillator 3 frequency, oscillator 1 pulse width, oscillator 2 pulse width, filter cutoff, feedback amount

VINTAGE KNOB
* Recreates vintage synth characteristics by adding voice-to voice variations in component behavior

AFTERTOUCH
* Source: channel (mono) aftertouch with bi-polar amount
* Destinations: Destinations: oscillator 1 frequency, oscillator 2 frequency, oscillator 3 frequency, LFO amount, amplifier envelope amount, filter envelope amount, FX mix A, FX mix B

CLOCK
* Master clock with tap tempo
* BPM control and display
* MIDI clock sync

ARPEGGIATOR
* Selectable note value: 16th note, 8th note triplet, 8th note, dotted 8th note, quarter note
* One, two, or three octave range
* Up, down, up/down, random, and assign modes

SEQUENCER
* Polyphonic step sequencer with up to 64 steps and rests

EFFECTS
* Stereo analog distortion
* Dual, 24-bit, 48 kHz digital effects, including: reverb (room, hall, plate, spring), delay (full bandwidth digital delay and emulated bucket brigade), chorus, flanger, phase shifter, and ring modulator
* Delay sync
* True bypass maintains fully analog signal path when digital effects are off

PERFORMANCE CONTROLS
* Full-sized, semi-weighted, 4-octave keyboard with velocity and aftertouch
* Backlit pitch and mod wheels
* Spring-loaded pitch wheel with selectable range per program (1 to 12 semitones up and down)
* Transpose controls for an 8-octave range
* Hold switch latches held notes on
* Polyphonic portamento
* Unison (monophonic) mode with configurable voice count, from one to all six voices, chord memory, and key modes
* Preset switch: when on, the front panel is live what you see is what you hear

PATCH MEMORY
* 500 user and 500 factory programs in 10 banks of 100 programs each
* Direct program access, including single-button access to the current set of 10 programs

IN/OUT
* Left/mono and right audio outputs (2 x 1/4" phone jack)
* Headphone output (stereo, 1/4" phone jack)
* MIDI in, out, and thru ports
* USB for bidirectional MIDI communication
* Filter cutoff expression pedal input
* Volume expression pedal input
* Sustain footswitch input
* Sequencer start/stop 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; 30 watts maximum power consumption

PHYSICAL SPECS
* Dimensions (L x W x H): 31.8" x 12.7" x 4.6" (80.7 cm x 32.3 cm x 11.7 cm)
* Weight: 20 lbs (9.5 kg)
* Maple end panels