The RhPf Electronics Shodhana is an overdrive pedal built around a dual-path design: a parallel MOSFET boost and a MOSFET overdrive run side by side, and the two blend dynamically as the Drive control increases. RhPf describes it as continuously morphing from a transparent, organic MOSFET boost into a focused, articulate overdrive1. It sits in the overlap between overdrive pedals and boost pedals, and it does both with only two knobs.
How the two paths work
The Shodhana's two sides, Clean / Level and Dirty / Drive, can be operated somewhat independently and balanced against each other, according to Guitar Pedal X's Stefan Karlsson, who reviewed the pedal in February 20262. In practice that means you can run the clean boost side alone, the dirty side alone, or blend the two.
The single Drive control is the heart of the design: RhPf says it simultaneously adjusts gain and voicing without the need for a separate tone control1. As gain rises, the pedal's voicing shifts with it, described by the maker as high-mid focused snap, with strong upper-mid bite and fast attack delivering clear mix presence1.
"Dual-path gain architecture: Parallel MOSFET boost and overdrive circuits blend dynamically as Drive increases."
Using it as a boost
RhPf describes the Shodhana as having high headroom and a wide output range, suitable for pushing amps, stacking pedals, or maintaining clean dynamics1. Karlsson found a favorite use in the clean side alone:
"I prefer the Clean Channel / Level control just on its own - at around the Noon mark - that delivers the perfect sparkly"
He counted that setting among his killer clean voicings for the pedal, and it makes the Shodhana a candidate for players who want one box that covers clean boost and overdrive2.
Where it came from
The Shodhana was designed by Thomas at RhPf, and the circuit is not a clone, mod, or tweak, but a fully original design built from the ground up, according to the Premier Guitar press release1. Karlsson placed it alongside the DOD250 and the Hello Sailor Effects Anchor Drive among notable two-knob overdrives2. RhPf's wider range includes the Tri-Harmonic Phalanx, a three-band parallel gain stage, and the MOSTARD, a clean dynamic boost.
Videos
Philip Czarnecki and RhpF Electronics
Questions
Is the RhPf Electronics Shodhana true bypass?
Yes. According to the Premier Guitar press release, the Shodhana uses true bypass switching and runs on standard 9V DC power. Its input and output jacks are top-mounted, which helps the pedal fit cleanly on a crowded pedalboard.
Does the Shodhana have a tone control?
No separate tone control. The single Drive control adjusts gain and voicing at the same time, so the character of the overdrive changes as you turn it up. The other control, Level, sets the output of the clean side, and the two sides can be balanced against each other.
What power does the Shodhana need?
The Shodhana runs on standard 9V DC power, as stated in the Premier Guitar press release. No current draw figure or battery option is given by the maker or reviewers.
Is the Shodhana a clone of another overdrive?
No. RhPf Electronics describes the Shodhana as not a clone, mod, or tweak, but a fully original circuit built from the ground up. Guitar Pedal X placed it alongside the DOD250 and the Hello Sailor Effects Anchor Drive among notable two-knob overdrives, but it is its own design.
Can the Shodhana be used as a clean boost?
Yes. Guitar Pedal X's reviewer found that the Clean Channel / Level control on its own, set around noon, delivers what he called the perfect sparkly clean boost, one of his favorite clean voicings from the pedal.
Who designed the Shodhana?
The Shodhana was designed by Thomas at RhPf Electronics, according to Guitar Pedal X's review. The same designer's later work for the brand includes the Mosphoros overdrive and the MOSTARD clean dynamic boost.
Sources (2)
- RhPf Electronics Introduces Shodhana Overdrive, Premier Guitar, 2026-01-12
- Guitar Pedal X, Guitar Pedal X, 2026-02-03
