The Joyo Dr.J D-59 Lancelot is a high-gain distortion pedal with a built-in boost, made by Joyo under its Dr.J series name. Joyo's own description leans on amp nostalgia: the maker calls it "a screamer ! Bringing back memories of some classic modded amps"1, while the manual describes it as "a professional high-gain distortion pedal"2. The full product name on JOYO Audio UK's page is the Dr.J D-59 Lancelot Distortion Mosfet, Diode and Boost Guitar Effect Pedal3.
What it does
The Lancelot combines two functions in one box: a distortion stage and a boost. JOYO Audio UK's product page describes the result as "a Distortion Guitar Effect Pedal that is rich in tone and features to boot"3. The name itself signals the design: Mosfet and diode clipping stages feeding a distortion circuit with a boost section, a layout players will recognize from other high-gain pedals that use MOSFET transistors in the clipping stage.
The GAIN control adjusts the distortion intensity and saturation level, letting you dial from moderate breakup to full saturation2. The manual also highlights the circuit design, calling it a "Professional circuit for low noise and high headroom"2, which matters for a high-gain pedal since those are the two areas where cheap distortion circuits usually fall short.
"The Dr.J D-59 Lancelot Distortion guitar effect pedal is a screamer ! Bringing back memories of some classic modded amps"
For players comparing it against other Joyo distortion options, the Dr.J line also includes the Joyo Dr.J Arsenal and the Joyo Dr.J BLADEMASTER, while Joyo's broader distortion range covers pedals like the Joyo High Gain Distortion and the Joyo US Dream.
Videos
Joyo Brasil
Alexandre Almeida
Action Speaks
Questions
What does the Joyo Dr.J Lancelot do?
It is a high-gain distortion pedal with a built-in boost. Joyo describes it as a screamer that recalls classic modded 80s distortion amps, and the manual calls it a professional high-gain distortion pedal with a circuit designed for low noise and high headroom.
Who makes the Dr.J Lancelot?
It is made by Joyo and sold under the Dr.J brand name, which JOYO Audio UK lists as the maker of the D-59 Lancelot Distortion Mosfet, Diode and Boost guitar effect pedal.
Sources (3)
- Dr. J Series D59 LANCELOT by JOYO, RockBoard PedalPedia, 2026
- Subject:, JOYO Technology Co., Ltd., 2026
- Distortion Effects : Dr.J D-59 Lancelot Distortion Mosfet, ..., JOYO Audio UK









