Pay in installments of $5.33 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
signal blender pedal GFI System Duophony – Motor City GuitarGFI System Duophony Advanced Parallel Signal Blender Pedal About the Product Parallel Blender: A pedal that blends the signals from 2 or more sources. Duophony is their 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
GFI System Duophony Advanced Parallel Signal Blender PedalAbout the Product
Parallel Blender: A pedal that blends the signals from 2 or more sources.
Duophony is their 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!
Full stereo signal paths
Duophony features full stereo signal paths throughout. TRS jacks supports both mono and stereo connections for the inputs and effect loops, while dedicated Left and Right TS jacks are provided for the outputs.
Hassle-free blending with presets
16 presets, readily accessible via the two on-board footswitches, external aux-switches, and MIDI.
Expressive Flexibility
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.
Modulated Blending
A unique feature that Duophony has is “Modulated Blending”, 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.
Precise digital control provides seamless user interface and ease of use.
Features:
• Input impedances: 1M Ohm.
• 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
• Dimension: 9.7 x 12 cm (3.8 x 4.7 inch)
• Power requirement: 9VDC / 150mA, negative-center plug (Power supply is not included).
• 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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 14 reviews
Sort
Product Reviews
★★★★★ 5
Strong but Effective—Great Results if You Don’t Overdo It (Your Skin Will Warn You 😅)
Size: 8.11 Fl Oz (Pack of 1)
I’ve been using this glycolic acid toner for a few weeks now, and I have to say—my skin and I are finally on better terms. I originally bought it to deal with uneven texture and those random little bumps that seem to show up uninvited, and it’s actually made a noticeable difference. Within the first week, my skin felt smoother, and after a few weeks, I started seeing improvements in tone and dark spots.
The quality is pretty impressive. It has a lightweight, watery texture that absorbs quickly and doesn’t feel heavy or sticky. There’s a slight tingling sensation at first, which can be a little surprising—but nothing too crazy. Think of it as your skin saying, “Okay, something is definitely happening here.”
That said, this stuff is strong. I made the mistake of using it too often at first and my skin basically said, “Absolutely not.” Lesson learned—use it a few times a week, not every day (unless you enjoy living dangerously). Also, sunscreen is non-negotiable unless you want to undo all your progress.
One thing I really like is the versatility—you can use it on other areas like underarms or back, which is a nice bonus. And when it comes to value for the money, it’s honestly great. The bottle is pretty big, and since you don’t need much per use, it lasts a long time.
Overall, I’d say this is a high-quality product that actually delivers results—as long as you respect it. Treat it right, and it’ll treat your skin right… ignore the instructions, and it will humble you real quick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Game changer! can’t imagine being without it!
Size: 3.4 Fl Oz (Pack of 1)
I’m absolutely delighted with The Ordinary Glycolic Acid 7% Exfoliating Toner! 🌟🌟🌟🌟🌟
This toner has transformed my skincare routine and significantly brightened my complexion. The 7% glycolic acid effectively exfoliates my skin without causing irritation, and I’ve noticed a remarkable improvement in texture and radiance.
After just a few uses, my skin feels smoother and looks more even-toned. I love how refreshing it feels upon application, and it absorbs quickly, allowing me to layer my other skincare products without any hassle.
The packaging is practical and easy to use, giving just the right amount of product with each application. Plus, the price point is fantastic for such a high-quality product.
Overall, I highly recommend The Ordinary Glycolic Acid Toner for anyone looking to brighten their skin and achieve a healthy glow. It’s become a staple in my routine, and I can’t imagine being without it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
The Ordinary Glycolic Acid 7% Review – Effective Glow & Smooth Skin Treatment
Size: 3.4 Fl Oz (Pack of 1)
I really like The Ordinary Glycolic Acid 7% toner. It helps exfoliate the skin and makes it look smoother, brighter, and more even over time. After regular use, my skin feels softer and looks more refreshed.
It is also very affordable compared to many other skincare products, and a little goes a long way. The bottle lasts a long time, which makes it good value.
However, it can be a bit strong for sensitive skin, so it’s important to start slowly and not overuse it. Also, sunscreen is important because it can make your skin more sensitive to the sun.
Overall, it is a very effective exfoliating toner and a great addition to a skincare routine if used correctly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
★★★★★ 5
Powerhouse
Size: 8.11 Fl Oz (Pack of 1)
The Ordinary Glycolic Acid has become one of my favorite skincare products. It makes my skin feel smoother, brighter, and much softer after consistent use. I’ve noticed improvement in dullness, rough texture, and even areas like my neck and scalp. A little goes a long way, and the bottle lasts forever for the price. I also love that it’s multi-use and can be used on more than just the face. You do have to be careful not to overuse it because it’s strong, but when used properly it gives amazing results. Such a great affordable skincare staple!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
this is such a good product! i love it!!
Size: 8.11 Fl Oz (Pack of 1)
i love this toner so much!! it has helped with my skin tremendously. if you are on the fence about it, just get it! its good for sensitive skin as well. i used to have those unexplainable bumps on my forehead for over a year but now they're gone and they were gone within one week of using it, it is such a good product!! i use it once every day at night but i have also heard people use it once or twice a week. this toner is also really good for dark armpits, BO or face, back and chest acne. its fragrance-free and the bottle size is pretty big and will last awhile. Highly recommend, 10 out of 10!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026