Hands On: One-Knob Wonders, Part Two - Fretboard Journal
J Rockett Audio Designs Tour Series Boing Spring Reverb Guitar Effect Pedal | Reverb
The Ultimate One Knob Fuzz Shootout - YouTube
Coda Effects - Rub-a-Dub Reverb (1776 Effects)
Cloudburst Ambient Reverb - Strymon
Dunwich One Knob OpAmp Distortion | Reverb Canada
NUX - Nux Oceanic Reverb! It has two parameters, one-knob controller! Its coming with a plate reverb inside but new reverb sounds are on the way and soon it will be available