GFI System Duophony Parallel Blender

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GFI System Duophony Parallel Blender

GFI System

Duophony Parallel Blender

4.6 Expert Rating

Product Info

Article Number: 571195
Model: Duophony Parallel Blender
Price: $383.90

* Prices may vary. Check retailer for current pricing and availability.

The Duophony Parallel Blender is a seriously creative tool for guitarists and keyboard players wanting to sculpt unique sounds. It’s perfect for players who love layering and blending effects, especially those seeking a more nuanced approach than a simple parallel loop. It’s a premium-priced unit, but the sonic possibilities justify the investment for the adventurous sound designer.

Product Description

  • GFI System Duophony Parallel Blender
  • Effects Pedal for Electric Guitar and Keyboards
  • Classic Signal Blender functionalities with modern features and intuitive user interface
  • True stereo on all signal paths
  • Parallel or Series routing modes
  • 3 Parallel blend modes
  • 16 Presets
  • 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
  • Controls: 2 x Rotary Touch Sliders (Mix/Dry Level/Mod Speed & Depth)
  • Loop Y Multifunction Control
  • Loop X Multifunction Control
  • Push Buttons: Touch Button (Slider Function select)
  • 2-Line LED display
  • Footswitches: A
  • Mono/stereo input: 6.3 mm stereo jack
  • Send & Ret X: 2 x 6.3 mm stereo jack
  • Send & Return Y: 2 x 6.3 mm stereo jack
  • Output L &R: 2 x 6.3 mm stereo jack
  • Expo/Aux: 6.3 mm stereo jack
  • Current consumption: 150 mA
  • Power supply via 9 V DC mains adapter (2.1 x 5.5 mm barrel connector
  • centre negative) - suitable power supply unit: Art.#409939# (not included in delivery)
  • Dimensions (W x D x H): 120 x 97 x 55 mm

*Note:* Battery operation is not supported

PROS
  • • Exceptional stereo blending creates wide, layered sonic textures.
  • • Intuitive touch sliders offer precise, real-time control over blends.
  • • Modulation engine adds depth and movement beyond basic blending.
  • • Parallel blend modes provide varied signal shaping possibilities.
CONS
  • • Complex interface demands practice to master efficiently.
  • • Size may be limiting for pedalboards with tight space constraints.
  • • Limited modulation effect types compared to dedicated units.

Product Video

Key Features

Effect Type Parallel Signal Blender with Modulation
Controls 2 x Rotary Touch Sliders (Mix/Dry Level/Mod Speed & Depth), Loop Y Multifunction Control, Loop X Multifunction Control, Touch Buttons (Slider Function Select), 2-Line LED Display
Bypass Type True Bypass with Trails
Power Supply 9V DC, 2.1mm center negative (not included)
Connections Mono/Stereo Input (6.3mm), Send & Return X (2 x 6.3mm), Footswitches A & B
Dimensions 145mm (D) x 98mm (W) x 35mm (H)

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Frequently Asked Questions

Inverting the phase on Loop X allows for constructive or destructive interference, creating thickening or thinness effects depending on the blend.
While stereo is ideal to maximize its potential, it works perfectly well with a mono signal—you’ll still get the benefits of parallel blending, just without the stereo width.
The MIDI input allows for preset recall and potentially some parameter control, expanding its integration into a larger MIDI rig.

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