This pedal is now being manufactured and sold by Amped Innovations, LLC, a partnership I co-founded with my friend and colleague, Derek. We are both Electrical Engineers, and Derek has done an excellent job with the first run of pedals.

You can purchase the pedal on the Amped Innovations website, linked here: JJJ Special Harmonics Extender Preamp Pedal

This circuit begins where all other boost pedals end. It delivers pristine clarity and a full, ultra-lush sound, with the ample frequency content you've been dreaming about-- harmonic heaven! Your guitar (or other instrument) will sound the best it possibly can using your existing gear, because this circuit delivers everything your instrument wants to deliver (without that annoying "ice-pick" that a lot of boost pedals have). The harmonic feedback possibilities for your amplifier are greatly expanded using this circuit, and you can achieve a world of controllable, sustaining and delicious harmonic feedback at your fingertips. Clipping is very touch-sensitive. The pedal is built to last, using internal circuit protection techniques that protect from heat, liquids and mechanical forces. If you’re into test figures and measurements, follow this link for Performance Characteristics.