GFI System Duophony Parallel Signal Blender Pedal

£299.00

This is the GFI System Duophony Parallel Signal Blender Pedal from GFI System, listed in Specialist Effects Pedals on Just Pedals. Read More below.

View Just
more
and , ,

The GFI System Duophony is a mono/stereo parallel blender pedal of unparalleled depth and flexibility, allowing the user to blend two separate signal chains of any kind in myriad different ways. Its rotary touch slider mix control is both intuitive and eye-catching, requiring but a swipe of the finger to tweak the blend ratio of Duophony’s X and Y loops. Each loop is further equipped with dedicated, easily-accessible controls — including gain, dry level, phase, trails (for reverbs and delays), and there’s even an onboard modulation engine with its own expansive control set!

Duophony offers three parallel blend modes for its loops, two routing options (parallel or series), and 16 presets organised into eight banks. Besides the touch slider on the face of the pedal, each of Duophony’s knobs is also a button; allowing for quick access to any parameter while keeping the user interface clean and simple.

Options for outboard expression, aux switching, and MIDI control round out Duophony's exhaustive feature-set — making it the ultimate effects blending workstation for the dedicated sonic adventurer.

Key Features

  • True stereo on all (inputs, outputs, and FX loops) signal paths.
  • Parallel or series routing modes.
  • 3 parallel blend modes : XY mix, Y plus [X], and X plus [Y].
  • 16 presets.
  • Fully adjustable dry signal level.
  • Phase invert function on loop X.
  • Individual gain control for each loop.
  • Bypass function with or without trails.
  • Expression pedal and aux switches control input.
  • MIDI input.
  • Full-featured modulation engine.

Specifications

  • Input Impedance: 1 MOhm
  • Output Impedance: 500 Ohm
  • Input/Send/Return Jacks: 1/4" TRS
  • Output jJacks: 1/4" TS
  • Expression/Aux Input Jack: 1/4" TRS
  • MIDI Input Connector: 1/8" TRS
  • USB Connector: Type C
  • Dimensions: 9.7 x 12 cm (3.8" x 4.7")
  • Power Requirements : 9V DC / 150 mA, centre-negative plug (power supply not included)

Related videos

Brand

GFI System

GFI System is a boutique pedal company based in Jakarta, Indonesia, recognized for its high-quality guitar effects pedals and advanced signal processing units. Founded by Henry Widjaja, GFI System has gained acclaim for its commitment to innovation, craftsmanship, and sonic excellence.

The company offers a diverse range of effects pedals, including modulation, delay, reverb, and overdrive pedals, each designed with meticulous attention to detail and utilizing cutting-edge technology. GFI System pedals are celebrated for their versatility, pristine sound quality, and intuitive user interface, making them a favorite among discerning musicians and recording engineers worldwide.

One of GFI System’s standout products is the Specular Tempus, a stereo delay and reverb pedal renowned for its studio-quality sound and extensive feature set. The Specular Tempus offers a wide range of delay and reverb algorithms, customizable parameters, and MIDI functionality, making it a powerful tool for ambient musicians, sound designers, and performing guitarists alike.

In addition to effects pedals, GFI System also produces advanced signal processing units, such as the Clockwork Delay and the Cabzeus Mono, which offer studio-grade effects and amp simulation in a compact and portable format.

With its dedication to innovation, quality, and sonic excellence, GFI System continues to be a respected name in the guitar effects industry, inspiring musicians to explore new sonic territories and push the boundaries of their creativity.

Category

Specialist Effects Pedals

Specialist effects alter the signal in ways that do not sit cleanly inside one established family. They may use granular processing, frequency shifting, resonators, freeze or sustain, bit reduction, ring modulation, feedback networks or combinations of several techniques. The relevant distinction is the underlying process, its tracking or latency, and how completely the dry signal can be blended or replaced.

Tags

MIDI

Sends, receives or responds to Musical Instrument Digital Interface messages rather than carrying the instrument audio itself. Program changes recall presets, continuous controllers move parameters, and MIDI clock or transport messages synchronise timing between devices.

Presets

Stores complete groups of parameter values for later recall. The number of locations, switching time, spillover behaviour and whether presets include routing, expression and MIDI assignments determine how completely one sound can change into another.

Stereo

Processes, creates or passes two audio channels. True stereo preserves separate left and right inputs, while mono-to-stereo effects generate spatial differences internally; routing, phase behaviour and whether trails remain stereo determine the resulting image. Some outputs sum to mono when only one socket is connected, which can change level or modulation depth.