expression pedal with toe switch A3 Stompbox | Quad Cortex Dual Expression Pedal
SKU: 31805645035
expression pedal with toe switch

expression pedal with toe switch A3 Stompbox | Quad Cortex Dual Expression Pedal

Sale price$23.98 Regular price$26.64
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Ships within 48 hours · Estimated delivery Jun 30 - Jul 5

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Description

expression pedal with toe switch A3 Stompbox | Quad Cortex Dual Expression PedalThe Ultimate DUAL EXPRESSION For Your Modellers Like Quad Cortex, Helix & Kemper Expression Output 1: Smooth Throw Expression Pedal The smooth throw on this expression pedal provides seamless control, ideal for precise adjustments during your performance. With its fluid range, you can manipulate parameters such as volume, wah, or delay feedback, delivering a natural and intuitive playing experience. Perfect for creating dynamic shifts without abrupt


The Ultimate DUAL EXPRESSION For Your Modellers Like Quad Cortex, Helix & Kemper

Expression Output 1: Smooth Throw Expression Pedal

The smooth throw on this expression pedal provides seamless control, ideal for precise adjustments during your performance. With its fluid range, you can manipulate parameters such as volume, wah, or delay feedback, delivering a natural and intuitive playing experience. Perfect for creating dynamic shifts without abrupt changes, this pedal ensures smooth transitions, allowing you to craft your sound with ease.

Expression Output 2: Toe Switch for Function Engagement or Bypass

The integrated toe switch allows for instant activation of effects or bypassing functions with a simple press. For example, when using the expression pedal as a volume control on your QC, you can engage a clean boost by pressing the toe switch, adding versatility to your setup. This dual-functionality design provides both expressive control and quick access to key features, enhancing your live or studio performances.

FEATURES

A3 Custom EXP offers a super smooth volume curve for precise expression controls and is specially designed for Quad Cortex. The housing is built like a tank using stainless steel making this unit very light but still very robust.

It features A3's indestructible life-time string and custom made potentiometer inside. It has 1 x 1/4" TRS (expression), 1 x 1/4" TRS (toe switch)

The Quad Cortex Custom Expression Pedal introduces full-featured functionality to NeuralDSP's ultra-powerful Quad Cortex modeller and profiler, letting you control and manipulate a wide range of effects processors with expression inputs.

By connecting the Quad Cortex Custom Expression to the pair of expression inputs located on the Quad Cortex, you not only get instant access to silky-smooth expression at your feet, but the pedal's built-in toe switch also makes it a breeze to engage and disengage effects without the need for additional hardware.

Quad Cortex Custom EXP Mini comes in size - 19.5 (Depth) x 8.5 (Width) x 6.5 (Height) cm (840g) - Depth matches the size of Quad Cortex

Quad Cortex Custom EXP Med comes in size - 22.5 (Depth) x 9.5 (Width) x 6.5 (Height) cm (1.02 Kg) - Depth is slightly over the size of Quad Cortex

A3 Stompbox is the boutique pedal company based in South Korea. The quality is proven after a number of field-testings by the renowned musicians such as Melvin Davis, Michael Thompson, Isaías Elpes, Nigel Hendroff and many more.

A3 Custom products are backed by non-transferable 3 years of warranty for the potentiometer and Life-time warranty for all the other parts of the unit. No questions asked, A3 Stompbox will either repair or replace any defective units under the warranty.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 31805645035

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Dennis
Dallas, US
★★★★★ 5
INCREASED DESK SPACE - ORGANIZED
Color: Walnut, Color: Walnut
I just received my new Vertical Laptop Stand by UPERGO! I had no idea that this device could free up so much space on my desk! AND, it looks great, very rich & professional with the solid wood, Walnut dividers. It has solid weight so your laptops won't just tumble or slide away either. The dividers that hold up to 2 laptops will also hold your cell phone. What an clever invention by UPERGO! I am now able to keep both of my laptops in the same space which frees up substantial workspace for me. The feature that allows me to adjust the width for different sized laptops is GREAT. I was at wits end how to add ventilation to my laptop as it became so hot. It now runs much, much cooler because the fan/air flow is vertical as opposed to flat on my desk. So many improvements in just one device. Thanks to UPERGO for this fine device which makes my desk look better & so much more functional! I highly recommend to anyone that spends time with laptops at their desk!
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Reviewed in the United States on August 28, 2024
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Fennel Salad
New York, US
★★★★★ 5
Attractive and Solid Laptop Stand
Color: Walnut, Color: Walnut
The premium quality at this affordable price is a great deal to me. You'd see these sort of designs sold on high-end desk organization companies at expensive ($$) prices. In addition to being aesthetically pleasing, this is a solid laptop stand that was built with the utmost attention to detail. The walnut panels are lined with scratch-resistant felt pads while the aluminum base has a silicone cushion to protect your devices when placing them in. The silicone feet and sturdy weight prevents the stand from moving and tipping over. The adjustability feature is great, especially if you want to accommodate several devices or even books. Per its specifications, I find that it accurately accommodates items ranging from 2cm (0.7in) up to 4cm (1.5in) in width. It fits my 2020 Macbook Air 13" perfectly.
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Reviewed in the United States on February 15, 2024
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Bfischlike
Lexington, US
★★★★★ 5
Works and looks great.
Color: Walnut
Looks, fits and works great. Helps to keep the fan free to flow, and clears up desk space. Once you get one of these, you’ll probably never go back.
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Reviewed in the United States on January 25, 2026
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Neil Skinner
Cuba, US
★★★★★ 5
Beautiful, Solid, and Well Made
Color: Walnut
Looks beautiful and holds my MacBook Air safely while it’s charging or resting. Going to buy another for my iPad. Heavy, well made using real wood and solid metal and is very adjustable. Outstanding product made with love and care!
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Reviewed in the United States on July 30, 2025
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Ram2015
Birmingham, US
★★★★★ 5
Product Quality.
Color: Walnut
⭐️⭐️⭐️⭐️☆ “This stand is sturdy, stylish, and keeps my desk clutter‑free. The walnut wood and aluminum design looks premium, and the dual slots fit both my laptop and tablet securely. A bit pricier than basic stands, but worth it for the quality and organization.”
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Reviewed in the United States on November 16, 2025

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