The Boss MO-2 Multi Overtone enhances your guitar's overtones. The MO-2 boosts the natural second and third generation frequencies to create 3 different harmonic profiles, with or without a substantial layer of pitch-shifting modulation.
The Electro Harmonix Frequency Analyzer Ring Modulator combines classic moving, tunable 3-part harmonies and variable filtering effects ia a new die cast pedal. For crazy times and weirdness check out the new Electro Harmonix Frequency Analyzer.
The Malekko Wolftone Chaos is a remake of the original Wolftone Chaos designed by Todd Wolfgram. Built in collaboration with Todd, the Malekko Wolftone Chaos retains all of the original analog tone with an updated power requirement for easy integration.