“Achenbach” Wahcko

What the Wahcko Does

The Wahcko is JAM Pedals’ premium, ultra‑expressive wah pedal—vocal, versatile, and built for nuance. It features a buffer‑less proprietary circuit, allowing impedance‑sensitive pedals (like germanium fuzz) to be placed after without tone loss .

Key Features:

RED Fasel inductor and Carbon‑Comp resistors for that classic, organic sweep
6‑position rotary switch to select different frequency sweep ranges—tailor your wah voice for funk, rock, blues, and more
Internal input gain trimmer for dialing in signal sensitivity based on your guitar and setup
Mini LED indicator and true‑bypass silent footswitch for reliable, noise‑free operation (note: battery not included—powered only via adaptor)

Why it’s special:

Pro guitar-ready versatility: Six sweep settings plus gain trim let players sculpt their tone precisely.
Seamless integration: The buffer-less design ensures it won’t disrupt fuzz and vintage circuits downstream.
Stage-ready durability: True-bypass switching and LED feedback make it dependable for live use.

About the “Achenbach Series”:

John Achenbach is a Storyboard Artist and Animation Professional with a long history on the legendary show “The Simpsons” and a guitarist/musician. The “Achenbach Series” is the result of a loving friendship that has developed through the years out of mutual respect for what each of us does!

Here’s a short video of him talking about the story behind our collaboration:

Here’s a little insider’s look into his process for coming up with his designs, using the “Achenbach Series” Tubedreamer as an example:

“You just can’t beat nature. For inspiration, I researched the first amplifier tubes to design a JAM pedals character and found this Fleming tube from 1904. Then a friend recently posted a real pic of a virus under an electron microscope. Damn.. that’s freaky.” John Achenbach