SKU: 13988697247
jhs dumble pedal

jhs dumble pedal Dumble and Dumbler (NOTADÜMBLË mod service)

Sale price$20.75 Regular price$23.06
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

jhs dumble pedal Dumble and Dumbler (NOTADÜMBLË mod service)We have paused direct sales and have implemented a waitlist SIGN UP FOR THE WAITLIST HERE This will be the fairest for everyone. Joining the waitlist is completely free. You can hang onto and enjoy your unmodded NOTADUMBLE while we catch up on orders, and once turnaround times are much shorter well start letting people off the waitlist in batches (first come first served of course). Youll receive a notification that youre off the waitlist and at that

We have paused direct sales and have implemented a waitlist

SIGN UP FOR THE WAITLIST HERE

This will be the fairest for everyone. Joining the waitlist is completely free. You can hang onto and enjoy your unmodded NOTADUMBLE while we catch up on orders, and once turnaround times are much shorter we’ll start letting people off the waitlist in batches (first come first served of course). You’ll receive a notification that you’re off the waitlist and at that time will have the option to purchase the mod. We’ll accept new orders at a pace so that we can keep turnaround times to roughly one week or less. 

Hopefully this is the best of all worlds. You can get your mod as soon as we’re able, but you don’t need to provide your payment/pedal in advance. This will also let us balance mod work with the production and design of our own pedals.

 

About the mod

Our Dumble and Dumbler mod transforms the fantastic JHS NOTADÜMBLË into a fully-capable dual drive pedal. We provide a dedicated true-bypass stomp switch for each of its two channels, allowing for easier switching, as well as adding the ability to activate both channels and stack them in series, creating vast possibilities that are not available in the original design. Furthermore, we add a "FLOW" switch to direct signal flow, letting you determine the stacking order -- from clean into overdrive, or overdrive into clean.

JHS's brilliant Dumble-inspired audio circuits themselves are completely intact and unmodified. By activating one channel at a time you can still achieve 100% of the sounds available from the original design. But by adding the ability to flexibly combine these two circuits you are able to get far more out of them, dramatically opening up new sound sculpting and dynamic performance possibilities.

Watch our video about it here!

"The Dumble and Dumbler Mod really opens up the possibilities of this pedal – the channels still sound amazing on their own, but when you stack them, things really start to take off. ... This particular sets of mods creates basically an entire new pedal, while retaining the sound and legacy of the original." ~ Pedal of the Day

Deluxe (presence knob) variation

JHS ships the NOTADUMBLE with a presence control (for boosting or cutting upper-mid frequencies of the overdrive channel. Think of it as a "brightness" control.), which is located on the inside of the pedal as a small "trim pot" which can be turned by screwdriver.

Our Deluxe version of our mod moves this control to a proper potentiometer with a knob located on the faceplate in the position of the stock channel switch. This doesn't change the sound capabilities of the pedal, but makes it much easier to adjust presence as you would any of the other controls. We find it makes the overdrive channel far more flexible and usable. 

And yes, we have our own supply of "D-style" knobs to match the others!

 

Click here to find the details of the mod for DIYers who want to perform it themselves. However we consider this to be a fairly involved mod of moderate difficulty. We bear absolutely no responsibility for the result of your own DIY activities, and will not be able to help you troubleshoot them. If you are unsure of your ability to mod and want to guarantee success, then let us do it for you! That's the whole point of this! 

 

Where do I send my pedal/kit?

If you are shipping us your pedal to mod, or sending us a kit directly from JHS, address it to our workshop:

Cosmodio Instruments
200 Great Rd
STE 245
Bedford, MA 01730

Include in the box either a printout of your order confirmation page from us, or just write out your name, email address, and order number clearly so we can make sure we know that it's your pedal/kit in the box!

 

More about the NOTADÜMBLË from JHS:

The NOTADÜMBLË is a DIY pedal kit from JHS Pedals that puts a half-million dollars of tone at your feet. With the flip of a slider switch, you can go between two highly sought after sounds that are as magical and rare as it gets. In the Drive setting–slider up–you get the dirty and distorted violin-like sounds you know from guitarists like Santana, Joe Bonamassa, and Eric Johnson. In the Clean position–slider down–you get a powerful preamp buffer pulled directly from John Mayer's rare and never before replicated device. 

Go ahead - save yourself a few hundred thousand dollars and experience the magic for yourself!

 

Cosmodio Instruments is in no way affiliated with JHS Pedals or Dumble Amplifiers

 

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: 13988697247

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4.3 ★★★★★
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Ink Independent
Birmingham, US
★★★★★ 5
Overall Excellent - Thorough Review - READ ME
Style: Stereo Receiver, Configuration: Receiver
I'm not an audiophile per se, but I do have elevated listening preferences. I enjoy finding the value in devices, and system configs. So that's the reason I tried this more budget-friendly receiver. Aesthetics: The look is very sleek and modern, which is great but sometimes I miss the nostalgia of more knobs. There is no base/treble knob and most everything is controlled by remote. That's fine I suppose, just be aware. The volume knob is very large and traditional which I love, but is also very stiff and not buttery smooth like you might expect. Perhaps that will break-in. Sound Quality: Wow, this sounds incredible. There is definitely a DSP happening that is noticeably awesome. It's referred to by Sony as Pure Direct. If you want to by-pass this, you can, but you'll hear right away the difference is major. I'm using simple Klipsch bookshelf speakers, and my expectations are surpassed on how much they come to life with bright and rich sound. Definitely a nice pairing for those shopping for speakers along with this unit. Overall the SQ is gonna be tough to beat without spending exponentially more. Remote: The remote is nice, sleek, and has what you need to quickly access. No complaints there. Installation: Takes minutes, super easy. Didn't follow any instructions due to my general confidence hooking up home audio gear. Overall: I highly recommend this one, and I'm picky. Initially, I fully expected to return this receiver, but plan to keep it. The only thing that may change my mind, is if I miss the nostalgia... then I'll have to go vintage. But no way a vintage receiver will sound this good. Props to Sony. Well done :) A+
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Reviewed in the United States on January 18, 2024
P
Verified Purchase
pete
Belleville, US
★★★★★ 5
Nice amplifier for the cost.
Style: Stereo Receiver, Configuration: Receiver
I had been using my Marantz model 22 receiver now for a couple years now with the TV, dvd player, and youtube music from my tablet. I like lots of knots and switches on my audio gear, I'm an engineer. I was getting tired of the seemingly endless up and down to adjust volume and whatever. And my inputs on the Marantz were maxed out. I searched Amazon to see what was available as a possible replacement that had a REMOTE. This Sony caught my eye. Relatively inexpensive, plenty of inputs, and specs I could trust, not a 3x4x5 box offering 220+220 watts of unlimited power! Ordered it and been using it for over a month now. Only 2 knobs, how good could that be? Well, it's remote let's me control everything without getting up. Plenty of output power, 100+100 watts of true RMS power. I didn't plan on using the Bluetooth but I tried it with the tablet, keeping the tablet by me, and it really impressed this old audiophile. I really don't have any negatives about it, even the fm sounds great. It was heavier than expected but not as much as that old Marantz. I even popped the cover. The build quality was what I consider good. I only wish I could find a service manual with the schematic for it.
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Reviewed in the United States on September 23, 2025
S
Verified Purchase
shawn880
Louisville, US
★★★★★ 5
very good wire for marine applications.
Size: 60ft, Style: 14 Gauge
Great stuff for wiring up a marine system. I like the gauge of the wires, how they are shielded and very sturdy. They deliver the power to the speakers well and I have had zero issue with them. I would definitely purchase again. The wires were easy to solder and are color coded black and red. I used nearly the full 100ft spool to wire up 4 8" speakers on a 24 ft Skeeter Sx240. I feel the price was competitive and having delivery to the house is a plus. I didnt have any problems stripping the wires, very easy.
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Reviewed in the United States on December 29, 2025
R
Verified Purchase
Russell Burns
Battle Creek, US
★★★★★ 5
Worked great for boat install
Size: 30ft, Style: 10 Gauge
Bought this to run some accessories on my boat. Worked great and well made. Flexible even with the coating. Made for easy work and should last. I wouldn’t hesitate to buy again if needed.
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Reviewed in the United States on January 19, 2026
I
Verified Purchase
igomesf
Los Angeles, US
★★★★★ 5
High Quality Durable and Easy to Use
Size: 100ft, Style: 14 Gauge
This marine-grade wire is exactly what I needed for my boat's electrical setup The tinned copper construction ensures excellent conductivity and corrosion resistance making it perfect for marine automotive RV and solar applications The PVC insulation is thick and durable providing extra protection against moisture and wear The wire is flexible yet strong making it easy to route through tight spaces without breaking or kinking This product offers great value for money excellent functionality and is easy to use If you need reliable waterproof and corrosion-resistant wiring for your boat or RV this is a fantastic choice Highly recommend
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Reviewed in the United States on January 31, 2025

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