SKU: 17850009860
boost pedal

boost pedal JHS Pedals Fumble JFET Boost Effect Pedal

Sale price$21.90 Regular price$24.33
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Description

boost pedal JHS Pedals Fumble JFET Boost Effect PedalOops! JHS made an uh oh, but this mistake is anything but. The Fumble JFET boost effect pedal delivers a tone accidently introduced in their NOTADMBL V1 pedal, now in a standalone enclosure that provides the long cloned history of a Dumble BBC 1 circuit that was actually sourced from a 1970s Barcus Berry piezo acoustic preamp. The history is messy, the reasoning is complicated, but the sound is superb. This two knob clean boost, inspired by a clone of

Oops! JHS made an uh-oh, but this mistake is anything but. The Fumble JFET boost effect pedal delivers a tone accidently introduced in their NOTADÜMBLË V1 pedal, now in a standalone enclosure that provides the long-cloned history of a Dumble BBC-1 circuit that was actually sourced from a 1970s Barcus Berry piezo acoustic preamp. The history is messy, the reasoning is complicated, but the sound is superb.

This two knob clean boost, inspired by a clone of a clone of a clone of a etc., performs JFET boosting with a unique control scheme that shapes your sound like no other in its class. The output control works as such—crank it up or turn it down to the desired output volume. The input control, however, behaves differently than expected. When the knob is fully to the right, it can be considered as a bypass for clean JFET boosting. When the knob is turned to the left, bass frequencies and gain start attenuating simultaneously, resulting in a slightly thinner, but overall tighter response. No other boost delivers this sort of shaping, and can be assigned the "secret weapon" label when applied properly.

Here's what you do: use it as a permanent tone shaper and boost at the front of your board. Set it however you want and never turn it off. Alternatively, the Fumble can be the overdrive lift you've been searching ages for. Rather than muddying with another pre-drive drive (what a headache), the Fumble adds more level and color to your favorite characteristic dirt. Push a driven amp, boost your board at the end of the chain, or, if you're feeling adventurous, try it as originally intended in the 1970s with an acoustic guitar. Let us know what you think about that one.

With analog circuitry, true bypass switching, and standard nine-volt center negative power requirements, the Fumble JFET boost proves that some wrongs can, in fact, be made right.

  • JFET boost inspired by Dumble's "repurposed" 1970s acoustic preamp
  • Input bass and gain attenuator control
  • Output master volume control
  • Analog design with true bypass switching
  • Standard nine-volt DC center negative power requirements
Shipping Notes
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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]
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SKU: 17850009860

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Brock1234
Waukegan, US
★★★★★ 5
My New Favorite Socks
Size: 6-10, Color: Halo Gray/Assorted
These have quickly become mine and my mom's favorite socks. We wear them with tennis shoes, Hey Dudes, and more. The fabric is incredibly soft and comfortable, they do not budge/fall in my shoe, and are extremely well made. I have become so attached to these socks, that I no longer want any other brand.
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Reviewed in the United States on July 4, 2025
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Peety
Massapequa, US
★★★★★ 5
Fit is great!
Size: 6-10, Color: Halo Gray/Assorted
These socks fit perfectly and never slip!
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Reviewed in the United States on April 9, 2026
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The bookish health nut
Belleville, US
★★★★★ 5
Absolutely Essential for Any Athlete or Gym-Goer!
Size: Large, Color: (035) Steel / White / Black
I recently purchased the Under Armour Unisex-Adult Training Cotton No Show Socks 6 Pack, and I must say, they've become an indispensable part of my workout gear. Here's why these socks are a game-changer: Comfort Above All: These socks are incredibly comfortable. Made from a blend of cotton and synthetic fibers, they provide just the right amount of cushioning without feeling bulky. Whether I'm running, lifting weights, or doing yoga, my feet feel supported yet free. No Show, All Go: True to their name, these socks stay perfectly in place without slipping down into my shoes. This is crucial for maintaining a professional look at the gym or during sports activities. No more embarrassing sock peeks or having to constantly adjust them. Durability: For the price, these socks hold up remarkably well. I've washed them multiple times, and they haven't lost their shape or elasticity. They've survived the rigors of both my workouts and laundry day. Breathability: The material mix allows for excellent breathability. My feet stay dry and cool, reducing the chances of blisters or discomfort during long sessions. Pack Value: Getting six pairs in one go is fantastic. It means I always have a fresh pair ready, which is perfect for someone like me who works out frequently. Fit for All: These socks fit true to size and are designed to be unisex, making them a versatile choice for anyone looking to upgrade their sock game. If you're in the market for socks that combine comfort, performance, and style, look no further. Under Armour has nailed it with these no-show socks. They've quickly become a staple in my wardrobe, and I find myself reaching for them over any other sock I own. Highly recommended for anyone serious about their fitness routine or just wanting reliable, high-quality socks. 5 out of 5 stars - These socks are a must-have!
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Reviewed in the United States on August 25, 2024
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DLynn
Fort Morgan, US
★★★★★ 5
My Husband’s Favorite Socks
Size: Large, Color: (035) Steel / White / Black
The Under Armour Unisex Training Cotton No Show Socks have become my husband’s absolute favorite socks—and he’s pretty picky about socks. Comfortable Fit: They’re soft, comfortable, and fit well without being too tight. They stay in place all day with no slipping or bunching. Great for Everyday Wear: Perfect for workouts, walking, and everyday use. They provide just the right amount of cushioning without feeling bulky. Durable & Long-Lasting: These hold up really well through regular wear and washing. They keep their shape and don’t wear thin quickly. Reliable Under Armour Quality: You can tell they’re well made. Consistent quality that matches what you expect from Under Armour. Overall Impression: When someone has a favorite sock and keeps reaching for it, that says everything. These are comfortable, durable, and dependable.
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Reviewed in the United States on December 30, 2025
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Kendall King
New York, US
★★★★★ 5
Quality Under Armour socks
Size: Large, Color: (100) White / White / Black
Nice medium thick sock that is breathable but cushioned. It stays put in the show and doesn’t fall down. Fit is true to size, no show/minimal show
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Reviewed in the United States on May 2, 2026

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