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Presenting the all new GFI System Duophony Advanced Parallel Blender Pedal.
The Duophony is GFI's take on the lowly 'parallel blender' pedal. They took the basic concept of blending two effects together to the next level by integrating the classic signal blender functionalities with modern features and intuitive user interface. The result is a solid blending machine, optimized to help you unleash the unexplored ideas of parallel blending and discover new ways of sculpting limitless soundscape!
The Duophony features full stereo signal paths throughout. The TRS jacks support both mono and stereo connections for the inputs and effect loops, while dedicated Left and Right TS jacks are provided for the outputs.
Key Features of the Duophony:
- True stereo on all (inputs, outputs, & 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.
Get Hassle Free Blending with Presets: Duophony offers 16 presets, readily accessible via the two on-board footswitches, external aux-switches, and MIDI. Adjust blending ratio or the Dry signal level at will with an expression pedal! Fully configurable Heel and Toe values for flexible expressive control. Expression pedals with 10 KOhm pot value are supported.
A unique feature that Duophony has is “Modulated Blending”, which gives you the ability to modulate the blending action with an internal LFO. When modulation is activated, an internal LFO will produce a waveform whose shape maps directly to the blend ratio. Modulation speed can be controlled via expression pedal, tap-tempo, or MIDI clock. Comprehensive external control:
- Expression Pedal - with adjustable heel and toe values
- Aux Switches - accepts up to 3 external switches for versatile control (tap-tempo, bank up/down, etc)
- MIDI In - nearly all features and functionalities of the pedal are opened to MIDI access, including MIDI clock.
Purity and Precision: 100% analog signal paths, coupled with high headroom and low-noise design preserve your signals and tone, while Precise digital control provides a seamless user interface and ease of use.
Demos in the Dark tests out the GFI Duophony
GFI System: Duophony // Advanced Parallel Signal Blender
The BEST Parallel Effects Blender! GFI System Duophony | Secret Weapons Demo & Review
Input impedances : 1 MOhm.
Output impedances : 500 Ohm.
Current draw : ~150 mA.
Input / Sends / Returns jacks : 1/4 inch TRS.
Output jacks : 1/4 inch TS.
Expression / Aux input jack: 1/4 inch TRS.
MIDI Input connector: 1/8 inch TRS.
USB connector : Type C
Dimensions : 9.7 x 12 cm (3.8 x 4.7 inch)
Power requirement : 9VDC / 150mA, negative-center plug (Power supply is not included).
We are open Tuesday-Saturday from 10am until 6pm CDT. Any order placed before 3pm CDT Tuesday through Saturday is processed for shipment the same day. Orders placed Sunday-Monday will be processed for shipment the following Tuesday. For Free Shipping items, Effects pedals and small goods items are generally shipped via USPS Priority Mail, and Guitars and Amplifiers are generally shipped via UPS Ground. Due to our central location in the middle of the US, most orders will be delivered within 1-3 days delivery time. Other shipping methods are available (at an additional cost), including next day air.
Please call us directly at (972)540-6420 if you have any questions regarding shipping for your order. 
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