Joyo Deluxe Crunch

The Joyo JF-39 Deluxe Crunch is a compact distortion pedal from Joyo. Joyo describes it as an "Updated version of classic Crunch with higher adjustability, which brings you a almighty Crunch distortion," and says it "definitely is the best of a lot of British pedals"¹. In other words, it is Joyo's take on a British-voiced crunch distortion, with more tonal control than the original Joyo Crunch Distortion.

An updated take on the classic Crunch

The Deluxe Crunch sits in a lineage that runs back further than Joyo. The DIY pedal community traces the circuit's family tree to the MI Audio Super Crunch Box: PedalPCB's Crunch Captain Deluxe project is described as "Compare to MI Audio Super Crunch Box V2"². MI Audio itself called the Super Crunch Box "a design that expands the flexibility of the original, without an large rise in price"³, and when MI Effects began shipping a later version in 2013, Premier Guitar reported it as "The latest incarnation of the classic Crunch Box now has a whole new feature set whilst still staying true to the origin"⁴. You can read more about that circuit on the MI Audio Super Crunch Box page.

Joyo's version follows the same pattern: take the classic Crunch formula and add adjustability. The original Joyo Crunch Distortion is the reference point, and the JF-39 is the updated, more flexible variant¹.

Power and bypass

The JF-39 is easy to fit on any pedalboard. It runs on a standard DC 9V adapter or a 6F22 9V battery, and draws only 9mA, so it is light on a power supply and a battery lasts a long time¹. It uses true bypass switching, so your signal passes through untouched when the pedal is off¹.

Impedances are typical for a stompbox: 1MΩ input and 1KΩ output¹. The enclosure measures 118(L) x 68(W) x 50(H) mm and weighs 200g¹.

Manual

Joyo hosts a JF-39 manual PDF on the pedal's product page at joyoaudio.com, dated December 17, 2019¹.

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