JHS Notadumble W/cosmodio Mod.

NOTADÜMBLË from JHS Pedals with the deluxe dual channel modification by Cosmodio Instruments.

Pristine, as new condition. The pedal has not been out of my studio, I’ve only played it to test it out and is in mint condition. It’s just not for me, so moving it on.

The modification turns the two separate channels into a dual drive with a direction switch, plus the internal presence trim is now an additional knob on the front.

Comes in original box with the unused tube of "Goop" and stickers.

NO OFFERS BELOW THE ASKING PRICE. The asking price is what it cost me, including the mod. This is what it would have cost you too, there is no scalping going on here, I’m just looking to make back my outlay.

POSTAGE EXTRA PAYABLE BY THE BUYER - please don’t ask for me to cover postage, refusal may offend.
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NOTADÜMBLË from JHS Pedals designed to emulate the legendary tones of Alexander Dumble's rare and highly sought-after amplifiers.

Released in May 2025, it offers two distinct channels:

* Drive Channel : Produces rich, "violin-like" overdrive reminiscent of players like Joe Bonamassa, Carlos Santana, and Eric Johnson.

* Clean Channel (slider down): A powerful preamp buffer inspired by John Mayer’s rare A Box Later pedal, known for its clarity and dynamic response.

Despite initial success, JHS discontinued the NOTADÜMBLË just weeks after launch, citing that founder Josh Scott admitted he had copied the wrong Dumble circuit for the clean channel, calling it his "biggest mistake." The pedal is now out of stock and no longer available.
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Dumble and Dumbler Mod by Cosmodio Instruments:

The Dumble and Dumbler mod by Cosmodio Instruments transforms the JHS NOTADÜMBLË into a fully independent dual-channel pedal, unlocking capabilities beyond the original design.

Key Features of the Mod:

* Dual True-Bypass Footswitches: Replaces the original slider switch with dedicated stomps for each channel (Drive and Clean), enabling instant, hands-free switching.

* Channel Stacking: Allows both channels to be activated simultaneously and used in series—either Clean → Drive or Drive → Clean.

* FLOW Switch: A toggle that controls the signal order between channels, dramatically expanding tonal possibilities (e.g., clean boost into overdrive for saturation, or overdrive into clean for clarity and touch sensitivity).

* Circuits Unmodified: JHS’s original Dumble-inspired circuits remain intact, preserving all stock tones.

Deluxe Version Upgrade:

* Presence Knob Relocation: Moves the internal trim pot (controlling upper-mid/brightness on the Drive channel) to the front panel as a user-adjustable knob, greatly improving usability.

* Matching Knobs: Includes custom “D-style” knobs to maintain aesthetic consistency.