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Conceived as the pedal version of Moog's famous vintage modular synths, the Moog Moogerfooger MF-102 Ring Modulator is an unparalleled modulator capable of all the original synths' effects. Featuring a ring modulator, carrier oscillator and dual-waveform LFO, the MF-102 boasts all the muscle necessary for the classic experimental Moog sounds.

Featuring an all-analog low-pass filter, sine wave oscillator and controls for volume, mix, low pass and frequency Fairfield Circuitry Randy's Revenge brings noise generation from trem effects to ring mod with plenty of room for experimental sounds. Jarring but warm, rich but stark, this study in contradictions is capable of strange, robotic sounds perfect for eletronica, ambient, or psychedelia.

The X-Series DigiTech Synth Wah Envelope Filter is considered by many to be an industry standard in adding spice to a riff. This Synth Wah pedal offers 7 different synth effects including envelope filters, synth tones, filter sweeps, and more. For a sound as unique as you are, grab one of these pedals and play around a little to find something unquestionably you.

Pairing an adjustable carrier signal with a revamped distortion circuit, the DOD Gonkulator essentially brings two effects into one chassis with controls for ring, frequency, gain and distortion. Capable of all the weird modulation goodness of the '90s original with the added ability to cover distorted experimental ground, this pedal pushes boundaries and makes statements with modulating effects limited only by imagination.

Running the gamut from familiar territory like distortion to the 32-bit tones of a bit crusher to a MIDI-capable tool of experimental chaos, the Alexander Pedals Syntax Error turns your rig into a '90s computer system. Designed to summon the sounds of throwback video games with an entire realm of experimental possibilities, the Syntax Error offers four onboard presets plus 12 MIDI-accessible presets to offer sounds from a glitchy modem to a time-stretched final boss battle. A pedal that needs to be heard to be believed.

The Electro-Harmonix Ring Thing is a complex beast, to say the least. This single sideband modulator offers up some all sorts of modulation and pitch effects, from tuning your standard guitar down to baritone-range to sweet and subtle chorus and vibrato effects. Plug in your favorite expression pedal and for more on-the-fly control of this instant classic from EHX.

The Moog Minifooger MF Ring is an analog ring modulator based on the larger Moogerfooger MF-102 but with three simple controls. A second version debuted in 2015 with only a cosmetic change to the faceplate.

The Electro-Harmonix FrEQuency Analyzer Ring Modulator infuses notes and chords with fluid, moving harmonies controllable through an easy interface of Shift and Fine control which set a specific frequency to add or subtract and a Blend knob which melds your signal with the newly created frequency. Separated from other ring mods, the FrEQuency's ability to control and contour high order filters for smoothing out cross distortions for an entirely new experience.

If you can plug it in, you can use the Pigtronix Mothership to give your instrument a fat analog synthesizer sound. The Mothership is built around a VCO, a Sub-Octaver, and an Intelligent Ring Mod, covering a total of eight octaves between its voices. This monosynth gives you buzzing triangle or square waves with the VCO voicing, incredibly fast pitch tracking with the Ring Mod, and an earth-shattering sine-wave bass using the Sub-Octave voicing. For an extra dose of funk, plug your expression pedal into the jack for insane pitch-bending whammy control.

Featuring a three-way waveform switch, bit reduction and modulation modes and an internal noise gate for greater note fidelity, the Red Panda Bitmap offers crunchy bitcrusher goodness with a wide palette of available sounds. Capable of sampling at one to 24 bits and going from warm, analog synth to a caustic 8-bit sound, this effect is perfect for exploring electronic noisescapes or adding a unique electronic element to any rig.

Featuring an all-analog design, five-way waveform selector and fine-tuned LFO control, the Way Huge Ring Worm is a ring modulator with wide arsenal of noise generation at its command. From a fat synth-like edge to a noisy robot clang, this effect is ideal for noise, experimental, and garage.

The Subdecay Vitruvian Mod is a ring modulator with seven carrier step modes and an Entropy switch to create modulations according to the guitar's natural intervals (Order) or random eight octave shifts (Chaos). 

Subdecay Studios was started by Brian Marshall in 2003 out of his Washington state workshop. 

The Super Ringtone is a 16-step ring modulator.

Years of Production: ca. 2010 - present

Step out into space and explore new tonal territory with the Moog Minifooger MF Ring V2. Based on the expansive Moogerfooger MF-102, the custom built, all-analog tone circuit allows you traipse between octaves, chaotic, chorus, and harmony-laden undertones through three simple knobs. For even more functionality, plug in an expression pedal and command the pedal's frequency ratio for pitch shifting, key control, and outright noise insanity.

Years of Production: 1977 - 1984, 2001 - present (reissue)

Mu-tron (short for Musictronics) developed a series of highly innovative effects throughout the '70s, including the popular Mu-Tron III envelope filter. The Mu-tron Octave Divider was an early octave pedal that produced tones an octave above and below the input. 

Years of Production: 1977 - 1981