Shopping for an Electro-Harmonix Big Muff is a bit like ordering a coffee on the high street; so many permutations, different sizes, different ingredients and different (sonic) flavors.

Or at least, that’s the case if you’re a guitarist. For a long time now, the bass contingent hasn’t had nearly so much choice – just one circuit, in a couple of sizes. There’s a more in-depth Deluxe version that offers lots of extra features, but also takes the blueprint further away from the simplicity the Muff has always offered.

Now though, a watershed moment, thanks to Josh Scott, of JHS Pedals fame, and Electro-Harmonix archivist Daniel Danger. Pedal historians, geeks, and also the co-authors of a comprehensive new volume on the history of EHX.