Dr. Scientist announces Dungeon Crawler high-gain distortion pedal

September 15, 2026 · 3 sources

Dr. Scientist has announced the Dungeon Crawler, a high-gain distortion pedal, with a maker's list price of $249 USD¹. Delicious Audio reported the pedal on September 15, 2026².

The maker describes it as a MOSFET-based distortion "designed to take a clean amp all the way to a death metal tone. Or a doom metal tone, or a black metal tone.. an extreme metal tone!"¹. It is built around three high-gain MOSFET stages and six gyrator EQ stages¹. Guitar Pedal X identifies the clipping stages as 2N7000 MOSFETs and the EQ stages as TL074 JFET-input op-amps³. The maker says the Grind knob "adds the output of a silicon rectifier to take the tone even further"¹.

The pedal has 11 knobs and two footswitches¹³. The knobs are Gain, Grind, Volume, Lows, Lower Mids, Upper Mids, Highs, Mix, Thick, Presence and Gate; the second footswitch engages a Boost for more gain and volume¹. The maker lists the EQ points as Lows post gain, Lower Mids at 420Hz, Upper Mids at 1000Hz, Highs as a 3kHz shelving filter, Thick as a 130Hz pre-gain filter and Presence as a resonant 1000Hz filter¹. Guitar Pedal X gives the Lows as 90Hz and describes Presence as wide-Q³.

The maker also lists a custom comparator-based noise gate, a wet/dry mix control, top-mounted jacks, film capacitors in the signal path, and construction by hand in British Columbia, Canada¹. Guitar Pedal X reports two LEDs that shift from amber to brighter red with input gain³. Delicious Audio calls the pedal "the brand's most amp-like and ferocious distortion pedal to date"². Guitar Pedal X reports availability direct from Dr. Scientist in Canada and from Joe's Pedals in the UK, among other international dealers³.