This is one of those that I think everyone should have.
It is that good, and just brilliant for just about any genre.

The DumbleTone Deluxe combines two carefully selected circuits inspired by the original reverse engineered John Mayer Dumble units: the smooth, expressive overdrive character of a Dumble drive section and the dynamic enhancement of the preamp clean channel. With NostalgiTone order switching, each circuit can be placed before or after the other, revealing two unique signal paths with their own feel, response, and tonal character.
The JFET preamp clean channel captures the dynamic response of a classic amplifier front end, providing natural harmonic enhancement, improved touch response, and a more expressive feel under the fingers. While the original design utilized a J309 JFET, the readily available J113 has proven to be an excellent choice for this application, offering similar performance characteristics and excellent reliability. The onboard bias adjustment makes setup simple and precise.
The Input control is not a gain control. Instead, it adjusts how the preamp stage responds to the guitar signal. Increasing the control allows players to explore changes in compression, fullness, and harmonic response. Full CCW provides a thinner, precise character, and full CW delivers a fuller, rounder tone.

Finally, despite featuring two premium circuits and order switching, the DumbleTone Deluxe maintains a clean, builder-friendly layout with minimal wiring for a straightforward and enjoyable build experience. Order switching does not get any easier than this.
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