About

Artisanal noise machines handcrafted in the woods of the American Northeast. 

We make guitar effects for the discerning connoisseur of fuzz. Using the finest materials, like electrical findings sourced from former Soviet operations and other exotic luxuries, each pedal is made to order with our exacting standards of precision engineering and unhinged insanity. 

We don't make clones. All ESI effects are original circuit designs, birthed from the brain of a madman hell-bent on creating some of the most deranged sounds possible. Want to sound like a wizard that reigns atop a mountain of sludge? You need the WOODSWITCH. Want to make your guitair sound like it's dialing up to AOL in 1995? Get yourself a MEGAHURTS Modem Fuzz.

For tone you can't find anywhere else, you've come to the right place. 

Let's get weird.