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DSM & Humboldt Dumblifier Overdrive Special

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Item: GIT0064244-000

DSM & Humboldt Dumblifier Overdrive Special Product Image

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DSM Humboldt Dumblifier; analog overdrive/preamp with two channels, preamp boost, with approx. +10dB, stereo cab sim & DI out. All product info

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DSM Humboldt Dumblifier Overdrive Special

Overdrive/preamp for electric guitar with two channels

Fully analog Preamp & amp simulator in the style of the Dumble Overdrive Special
Two channels for Clean & Overdrive (wired in series)
Authentic preamp and power amp section with adjustable compression
PAB (Preamp Boost) with approx. +10 dB gain boost
Rock / Jazz tone stack (FMV vs. Baxandall-James)
Bright and mid boost switch
Input Boost (-8 dB / +12 dB) for different pickup outputs z. B. active or passive
Integrated Stereo cabinet simulation
- Speakers: G12M, G12H, EV12L
- Cabinets: 1x12, 2x12 (open back), 4x12 (closed back)
Stereo FX loop (mono send, Stereo return)
Stereo Reverb (Room, Ethereal, Plate)
DI-Out L/R with permanently active cab simulation
TRS outputs L/R with switchable cab simulation (Amp / FRFR / Recording)
Aux-in with routing to headphones or main outputs
Robust, sandblasted aluminum housing with wooden side panels
Power supply: 9 V DC, Center Negative, approx. 200 mA
Compact format: approx. 13.5 × 11.5 × 6.5 cm
Weight: approx. 420 g

Fully analog preamp & amp simulator in the style of the Dumble Overdrive Special with two channels and high-quality cab sims.

DSM Humboldt Dumblifier Overdrive Special - analog preamp/overdrive with two channels

The DSM Humboldt Dumblifier Overdrive Special is a fully analog amp and overdrive preamp that faithfully reproduces the legendary character of a Dumble Overdrive Special, both in tone and touch. Developed from a detailed analysis of a 1970s Dumble amp, the Dumblifier integrates two channels (clean and overdrive), an authentic preamp and power amp section, integrated cabinet simulations, and stereo reverb in a compact pedal format. With extensive switching options including PAB boost, Rock/Jazz tone stack, mid boost, and bright switch the Dumblifier functions either as a full-featured amp replacement via DI output or as a high-quality overdrive/preamp in front of a traditional guitar amplifier. It is designed for guitarists seeking a dynamic, expressive boutique amp experience without the use of digital modeling, offering organic response, touch sensitivity, and tonal richness in a portable format.