Next-Generation Dual-Engine Multi-Modulation

The GFI System Synesthesia redefines modulation processing by housing two independent DSP engines capable of running 38 classic and modern algorithms simultaneously. From lush analog-style choruses and vintage phasers to dynamic envelope filters and rhythmic pitch modulation, the Synesthesia replaces an entire row of modulation pedals on your board.

Its powerful routing capability lets you run Engine A and Engine B in Series, Parallel, or Split to separate amp rigs. Paired with GFI’s intuitive multi-function push knobs and clear screen layout, crafting complex modulation patches takes seconds, while full MIDI control opens up limitless automation for complex pedalboard setups.

Sanctuary Expert Note: Pairing the Synesthesia with an optional GFI Triple Switch gives you dedicated, single-tap access to bank switching and tap tempo without giving up valuable pedalboard real estate.

Key Architectural Features:

• 38 Built-In Algorithms: Covers Chorus, Flanger, Phaser, Tremolo, Vibrato, Rotary, Filter, Pitch, and Sequencer effects.
• 3 Signal Flow Modes: Cascade (Series), Mixture (Parallel), and Split (Stereo Dual Routing).
• Pre/Post Routing: Place modulation before your overdrive or after your time-based effects on a per-preset basis.
• Comprehensive MIDI & Aux Support: Full MIDI capability, Expression input, and 3-button Aux switch support.

Technical Specifications:

• Inputs/Outputs: Stereo Inputs & Outputs + FX Loop/Pre-Post insert point
• Power Requirement: 9VDC / 240mA center-negative
• Dimensions: 4.7" x 3.5" (12 cm x 12 cm) compact footprint

Key Features: Dual-engine runs 2 algorithms simultaneously. 37 classic and modern modulation effects. Flexible DSP Routings : Cascade, Mixture, Split. 32 Presets. Tap-Tempo. MIDI In / MIDI Thru. Expression Pedal and CV input. Aux Switch expansion.

Specifications: Input impedances : 1 MOhm. Output impedances : 500 Ohm. DAC / ADC resolution : 24 bits. Current draw : ~240 mA. Input / Output jacks : 1/4 inch TS. USB Connector : Type B Weight : 800 grams (1.6 lbs). Dimension : 12 (L) x 12 (W) x 5.5 (H) cm Power requirement : 9VDC / 240mA, negative-center plug