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The DigiTech Drop does just what its name implies: it helps you drop your tuning down from one semitone all the way to a full suboctave with the simple twist of a knob. Use it to simply drop-tune your guitar or flip the Momentary/Latch switch for a swarm of trilling pitch-dips - the Drop is good for the simplest of uses or to create unique modulation effects with literally the flick of a switch.

A pitch shifter with a range of +/- three octaves, an eleven-setting Shift knob and three modes for up, down or tandem shifting, the Electro-Harmonix Pitch Fork is a compact pedal with a lot of power under the hood. Built to maximize pedalboard space and intuitive to use, this is an excellent effect for adding an extra edge to your sound or as a step-up in your pitch shifter.

Now in it's fifth generation, DigiTech's whammy pedal allows easy pitch bending over notes or entire chords. Countless players have used various Whammys over the years including Rage Against the Machine's Tom Morello, Radiohead's Johnny Greenwood, and Pantera's Dimebag Darrell.

One of the most versatile and experimental pedals available on the market, the POG 2 is the next evolution in Electro-Harmonix's popular octave generator line. Building on the original, the POG 2 features a second sub-octave generator, attack control for swell effects, and a two-pole resonant low-pass filter.

The Boss PS-6 Harmonist is like having a second and third guitarist tightly playing harmony with your leads whenever you want. Beyond that, it can Detune, Pitch Shift and Super Bend (with an optional expression pedal). Bring on that cover of "Ramblin' Man" and play to your heart's content.

Why just play one chord or note at a time when you can play three? The Electro-Harmonix Micro POG expands your sonic territory with a three-octave spread from your original note, allowing you emulate a twelve-string guitar, an eight-string bass, even an organ.

When an octave bass accompaniment just isn't enough, the Boss OC-3 Super Octave steps in to sweeten the deal. In addition to the original OC-2 mode allowing for one and two lower octave notes, the OC-3 includes a Drive and Polyphonic mode for overdriven tones and an adjustable polyphonic effect. The OC-3 is used by The Black Keys, Van Halen and Tony Iommi.

DigiTech adds a new member to their Whammy Family with the DigiTech Whammy DT, which expands upon previous DigiTech whammies by adding drop tuning and true bypass to its original pitch shifting capabilities. You can now drop or raise tuning by 7 half steps or an entire octave and are provided with a ton of classic whammy voicings at your disposal. All of your key changes can take place in seconds with just the tap of your toe, and you can even create hammer-on and pull-off effects with the momentary footswitch.

The Electro-Harmonix Nano POG gives you EHX's wildly popular and powerful polyphonic octave technology in a tidy, space-saving design. Boost up that sub to thicken guitar chords or fool yourself into thinking you're holding a bass, or kick the "Octave Up" control into gear to create convincing 12-string and synth-like sounds, all with impeccable tracking and no false notes or oddities.

Built around four mythic MN3005 bucket brigade delay chips that generate inimitable analog warmth that gets sent through a corridors of digital manipulation for undiscovered leagues of harmonization, pitch-shifting, and uncharted experimental sonic depths, the Chase Bliss Audio Thermae Analog Delay/Harmonizer is a morphing, enfolding delay experience that wraps players in a wildly unique effect experience. Named after the public baths of ancient Rome, the Thermae is capable of warm, cascading sequencing and steps thanks to two interval controls for speed and depth that can be further divided, pitch-shifted, and blurred thanks to a low pass filter, regen, and glide controls along with nine modulation dip switches for further experimentation. Our favorite pedal of NAMM 2018 and one of the most novel effects to come along in years.

Featuring six whammy, 10 harmony and deep/shallow detune modes, the Whammy 4 is one of the most versatile and praised octave/pitch shifters available on the market. This little red rectangle gives you a full control over sending your sound plummeting through the floor or piercing through the ceiling for a world of shifting, experimental effects. A known favorite of Tom Morello, Jack White, and Troy Van Leeuwen.

You already know and love DigiTech's Whammy series, but the DigiTech Whammy Ricochet is a pitch shifter that takes it to the next level while saving you tons of pedalboard real estate. A momentary switch and the ability to customize your rise and fall time using a ballistics knob gives you the ability to bounce around in pitch with either complete control or in utter chaos. The Ricochet also gives you the choice between seven pitches: 2nd, 4th, 5th, 7th, Octave, Double Octave, and Octave + Dry, including an up/down switch for your selected pitch. And best of all, you get all of this pitch-shifting wildness in the size of your typical pedal.

This ethereal vibe master is a multi-mode octave reverb pedal, featuring a huge reverb circuit at its core, a built-in chorus, and octave controls for even more sonic versatility. Get slow, cascading seas of sound, spiraling pitch changes, harmonized tails, and more.

Featuring a dual-voiced layout, 14dB mid frequency boost switch and Constant Headroom Technology to ensure a stable effect presence, the MXR Bass Octave Deluxe proffers depths of low-frequency rumble. Using the dry knob to alternate or separate the two unique voices of aggressive or deep octaves, this effect can transport your sound right into the belly of stoner rock perfection.

The sunn O))) Life Pedal V3 may just be the most refined approach for heavy, crushing tone available. Splitting the octave controls out to become independent (vs. previous models), the circuit itself has been updated to allow for a more pronounced octave effect. Alongside precise controls for distortion and boost, you get full tweakability to tame—or let loose—the Life Pedal's aggressive potential.

Packing a vintage-voiced monophonic octaver and polyphonic octave engine along the company's signature TonePrint modulation engine all with two sub knobs, one up knob, and a dry control, the TC Electronic Sub N' Up Octaver offers unprecedented octave possibilities. A natural fit for the stoner rock set, this pedal opens doors to new experimental possibilities when paired with other effects.

Meet the DigiTech Polara Reverberator: a fresh reverb pedal set to take you to the final frontiers of the sonic galaxy. The Polara offers seven modes that cover the gamut of reverb effects, from standards like Plate and Spring to more out-there settings like Halo. This is a reverb pedal that plays especially nice with the rest of your board, offering a massive palate of experimentation at a reasonable price.

Particle is a granular delay / pitch shifting pedal. It chops your signal into small grains and then rearranges, shifts, and mangles it, using the techniques of granular synthesis in real time. Results range from radical pitch and delay modulation to shimmering repeats to time stretching, stutter, and glitch sounds.

Mutating your signal into a vicious square wave fuzz and sending it through a universe of modulated oscillation and subharmonics, the Earthquaker Devices Data Corrupter transforms your guitar into a three-voice mono synth space monster.

Master Oscillator: Up to three octaves above input with eight octave interval positions and two unison roots




Subharmonic: Up to three octaves below input with eight octave interval positions and unison or oscillator root




Frequency Modulator: Rate knobs and Glide/Vibrato switch (Can only be used w/ Master Oscillator or Master Oscillator and Subharmonic together




Voice Mixer: Blends levels of Square Wave Generator, Oscillator, and Subharmonic




Other Features: All-analog signal path, relay-based true bypass switching

Featuring three-voice harmony and detune, a selectable key knob and four effect modes including Super Shifter for four octaves of shifting, the PS-5 lives up to its name of "Super Shifter." This pedal is an ideal choice for those interested in a compact shifter that doesn't sacrifice on features or technology.

Featuring polyphonic pitch shifting able to add up to one lower octave and two higher octaves and a simple interface of level and tone knobs, the Digitech mosaic emulates the sound of twelve-string guitars on a standard electric. Easy to use and capable of creating lush, atmospheric tone, this effect is an excellent fit for art rock, experimental, or lo-fi.

The Electro-Harmonix Ravish Sitar emulates the sound of a sitar by offering drones and polyphonic lead tones to your guitar playing. With controls for both the lead and sympathetic tones that control the volume, scale, and timbre of the sounds, the Ravish Sitar also offers two expression pedal inputs and programmable presets.

The Electro-Harmonix KEY9 Electric Piano Machine emulates the sound of nine classic electric pianos from the '70s including modes for Rhodes and Wurlitzer-style instruments. This pedal followed up on the success of the EHX C9 and B9 Organ Machine pedals, and features individually adjustable parameters on each setting.

Need to get low? The Boss OC-2 is a fantastic analog Octave pedal capable of dropping your instrument's signal down one or two octaves from its original sound. Pro-tip: you can cop the sound of an analog synth if you crank the Octave 1 knob up while keeping the other two knobs turned down.

The popular TC Electronic Sub N' Up Octaver now comes in a mini version that packs the original's monophonic, vintage-voiced octaver and polyphonic octave engine into a more pedalboard-friendly chassis. Also like the original, the mini version is packed with TC Electronics' TonePrint technology, which lets players beam signature tones to their pedal via the TonePrint app.

The Quintessence Harmonizer from TC Electronic is a powerful, feature-rich harmonizing pedal offering eight default harmonies and three TonePrint harmonies, with seven diatonic scales and a custom scale setting. In addition to TonePrint, the Quintessence is also equipped with TC's MASH technology, which serves to bend your harmonized note up to the next interval within the scale for an expressive control without having to add another pedal to your board.

Featuring simple controls for volume and boost and a switch for an octave or fuzz effect, the Fulltone Octafuzz is a versatile pedal based on the original TychoBrahe Octavia. Made famous by Hendrix and capable of of an octave up with a fuzzed edge for experimental sounds, this pedal is perfect for stoner rock, doom, or metal.

The Boss PS-2 Digital Pitch Shifter/Delay pedal is one of the rarer Boss models, manufactured in the late '80s and early '90s. Two full-fledged pedals are rolled into one, the PS-2 offers both individual pitch shifting and delay capabilities. It contains six different modes: 125ms delay, 500ms delay, 2 second delay, manual pitch shift, up an octave, and down an octave. Its knobs allow you to control the balance between each effect and your original signal, the feedback in your effects, and more.

The MXR Blue Box became the go-to octave effect and a gear icon after Jimmy Page used it for his solo in "Fool In The Rain." It's incredibly simple - two knobs for Output and Blend - one of those pedals that just does its thing and sounds good without a ton of dialing in. It tracks your notes and doubles with a two-octave down copy, providing a bassy, raw feel. Put it front of a fuzz and stand back.

Using a Multi-Dimensional Processing technology, otherwise known as MDP, Boss has constructed the MO-2 Multi Overtone. This pedal uses your guitars harmonics to build upon and create a wide range of new tones. Rich harmonics that complement rather than overtake your guitar's sound are characteristic of the MO-2, and three different sound modes as well as 3 knobs allow for extreme tonal adjustment. As a pedal that's highly responsive to both clean and dirty signals, the Boss MO-2 can shine up any input tone with cool harmonics.

Guitar players rejoice -- vocoders aren't just for keyboards anymore! The Electro-Harmonix V256 Vocoder with EHX's "Reflex Tune" processing gives you tons of power to transform your guitar into a talking synthesizer. With 9 switchable vocoder modes and anywhere from 8 to 256 bands adjustable on a single control, the V256 takes you from classic '80s-style vocoding to a futuristic alien sounds and lets you leave your vintage synth at home.

Built with normal and octave volume controls, the ability to recognize two or three-note chords and a three-way octave divider switch which allows for synth-like highs or subterranean lows, the EBS OctaBass Triple Mode Octave Divider takes the classic octave pedal and packs it with modern features. Able to send a bass signal plummeting into stoner metal lows or impart a Korg-like quality to the tone for dance-punk, this handbuilt pedal does the work of three separate octaves and plays well with other effects for even more experimental sounds.

The Electro-Harmonix Voice Box is a powerful harmonic processor and vocoder that can simply offer you 2 or 4-part backup harmonies or go "O Superman" and unleash vocoder synth sounds. The Voice Box comes with an immense amount of accoutrements, such as studio reverb, pitch-shifting algorithms, harmonies that sound at a 3rd and 5th above the original note, 9 tweakable presets, and even a Gender Bender knob, which modifies the male/female formant. For depth, clarity, and experimentation, the Electro-Harmonix Voice Box is a great offering for any singer or instrumentalist.

With the Electro-Harmonix Octavix, you can nail down some really funky sounds reminiscent of the "slashed speaker" effect and more...without having to actually slash your speaker! Dial in some plain ol' EHX fuzz with 9V and 24V switch for different headroom options, and then juice up some upper octave to bring some really unique tones to your rig.

Featuring pitch-shifting abilities from a fourth down through a third up, a Secondary knob to incorporate a harmonic octave and a "Magic" knob for truly pushing the boundaries of what a pedal can do, the Earthquaker Devices Rainbow Machine is a synth noisemaker not for the faint of heart. Billed as a "pitch shifter," this pedal is a wild synth wolf in sheep's clothing.

The Vezzpa joins Beetronics' beloved range of high-quality fuzz and dirt pedals. This time around, the sting is so sharp they had to upgrade the bee imagery to a wasp. The Vezzpa's op-amp fuzz circuit gives you two great options in one compact pedal: the sputtery, gated fuzz of the Fuzzzz channel or the searing octave-up fuzz of the Stinger. With some creative footswitch toggling, you can easily zip between the sounds or let loose sporadic bursts of searing fuzz.

Featuring the same pitch shifting technology and dual classic/chord note tracking as the original but attenuated for lower frequencies, the Digitech Bass Whammy takes your low end to a new high. Incorporating newly conceived polyphonic algorithms for one of the smoothest pitch shifts available, this pedal provides an even deeper low for sludge and stoner rock and an experimental edge for noise.

The Walrus Audio Descent is a shimmer reverb unit that includes wide spectrums of shaping ability, including dry signal blend and octave up/down functions. Featuring eight knobs and three modes—hall, reverse, and an octave-up shimmer—the Descent offers everything from classic small room echoes to ambient waves to endless reverb.

The DOD Meatbox is a subharmonic synth pedal that adds room shaking low end to any guitar or bass. With the original FX32 Meatbox from the '90s becoming increasingly in-demand on the used market, DOD has crafted this reissue in an updated housing. The modern Meatbox features straightforward controls for Octave, Sub, Low and Output - giving you precise control to dial in the type and tone of bass reinforcement you need.

Sporting a full two octaves up or down as well as harmony, pitch shift and detune modes choosable via three-way switch, the Mooer Pitch Box is armed to the gills with choral/shifting features. Whether you want to add a pitch-shifted chorus twinge to your signal or a focused polyphonic voicing, the Pitch Shift plays well as a standalone effect and adds new dimensions to fuzz and distortion pedals.

Featuring ten signature Eventide pitch/delay effects, four diatonic pitch-shift voices and up to 1500ms of delay time, the Pitchfactor is the ultimate effect in exploring the possibilities of pitch and delay sounds. Built with a diehard Eventide chassis and intuitive interface, this pedal is the perfect tool for art rock, experimental, or stoner rock.

You can never have too many fuzz pedals, and the new Jackson Audio FUZZ Modular Fuzz aims to be the pedal that never makes you choose between them. The FUZZ Modular Fuzz is exactly that—a modular fuzz pedal that allows players to swap out analog circuit plugins, effectively changing the entire sonic characteristics of their pedal. It also features an independent foot-switchable octave circuit, which takes your fuzz tone-shaping to the next level.

The HOG 2, which stands for Harmonic Octave Generator, is the next step in the Electro-Harmonix HOG line. You now have complete control of ten polyphonic, glitch-free voices that range from two octave below to a whopping four octaves above pitch. Not only do you have control over the ten independent voices offered by the HOG 2, but you also have seven expression modes for a full range of tonal possibilities. If you're fiddling around and find something you like, save it in one of the HOG 2's 100 presets for later recall using their external Foot Controller.

The Red Panda Particle Granular Delay can chop up, pitch shift, modulate, and stutter your delays in totally unique ways. There are 3 pitch-shifting modes (Density, LFO, and Detune) and 5 delay modes (Density, LFO, Reverse, Random Pitch, and Random). The Red Panda Particle Granular Delay also features knobs for Feedback, Blend, Chop with an adjustable auto-freeze threshold, a Parameter knob unique to each mode, and a dual Delay/Pitch knob which adjusts either the delay time or pitch shift depending on the mode. There is an expression pedal input which can control the Delay/Pitch (switch up) or Parameter (switch down) knobs. The Red Panda Particle Granular Delay comes in both White and Ghost Black finishes, and is capable of both the prettiest and strangest delays.

Building on the success of its predecessor with a more powerful low-pass filter and elongated attack time for a wider palette of experimental options, the Walrus Audio Luminary Quad Octave Generator V2 turns your guitar or bass into funky, modulated vintage organ. Analog Devices SHARC processors ensure precise tracking on each of the four octaves for pristine sound with the option to add choral flair with the Flutter knob and haunting sustain with the Attack.

Able to complement a single note with one or two voice accompaniments with controls for setting the effect up to one octave up or down,the Boss HR-2 Harmonist allows the player to set a song's key and play away. Excellent at creating a full, lush sound, this effect works equally well for the solo performer or a lone guitar in a full band setup.

Featuring the same rocker as a standard Whammy with the ability to parse whammy and wah sounds through 29 presets, the Digitech XP-100 Whammy Wah is an iconic experimental Digitech effect of the '90s. Discontinued for years, these older pedals are rare and collectible, perfect for the Digitech enthusiast or for a different take on the Whammy.

The Joyo JF-12 Voodoo Octave is a tripped-out fuzz pedal with more extensive tone control and a switchable octave-up feature. Run through a range of seething fuzz sounds, sculpting as needed with the tone control as well as a mid-cut switch for a more modern "scooped" sound. When it's time to come into a big lead or melody line, stomp onto the Octave Up switch for some serious upper harmonic push that gets really weird really quickly -- in the good way. Rounded out by a sturdy, road-worthy enclosure and true bypass, the Voodoo Octave is an awesome inexpensive option for anyone in need of an octave fuzz.

The Quint Machine is a double chorus pedal with an added fifth octave for a wider range of effects.

Featuring controls for gain, body and attenuation for precisely sculpting the shape of the effect, the Catalinbread Octapussy is an octave/fuzz with fine-point effect attenuation. Able to respond accurately with harmonic octaves or variable fuzz to the tone and playing of a guitar, this pedal is perfect for psychedelia, stoner rock, and even funk.

This is the original POG by Electro-Harmonix, the octave pedal that gave birth to the POG 2 and the POG Nano. With the original POG, you can add up to two octaves up or one octave down to your signal and blend them together to your taste with each voice's separate volume control. An added lowpass filter with switchable resonance gives you even more control over the tone and voicing you get from the POG.

If you're in the market for bottomless sub-octave possibilities in a compact package, the Electro-Harmonix Octave Multiplexer is knocking at your door. The pedal's ability to drop any monophonic signal an octave makes this pedal ideal for solo artists looking for a fuller sound, experimental music, and wild bass sounds from virtually any instrument. This pedal bas been produced in both an older box larger format, as well as a smaller more recent enclosure which is sometimes referred to as the XO version.

The EarthQuaker Devices Bit Commander will make your guitar sound like a vintage analog monophonic synth, minus the hassle of adjusting dozens of knobs. Play with the neck pickup above the 7th fret for the best results.

Featuring up and down octave controls and a choir knob for doubling the effect, the Organizer is a polyphonic effect that mimics organs for any instrument. Summoning the classic sound of vintage organs with a distinctly modern edge, this pedal offers uncharted experimental territory for any rig.

The MXR Slash Octave Fuzz is a wildly versatile pedal, a collaboration between MXR Innovations and the legendary top-hatted guitar slinger. With separate level controls for octave up and down, and a handy switch for sending the sub octave tones into the fuzz circuit, the Slash Octave Fuzz gives you all the searing octave-up lead tones and the warm, wooly sub-octave tones that Slash uses day in and day out.

Featuring LED display, an octave up foot switch for huge presence in a mix and a Fat/Bright switch to alternate between a mids-focused or completely scooped tone, the Fulltone Ultimate Octave is a powerful fuzz/distortion/octave that pays homage to the classic sound of the Octavia. Intuitive and design and formidable in features, this pedal is a perfect fit for metal, stoner rock, or psychedelia.

The one that started it all, the Digitech Whammy WH-1's two octave up/down Whammy option, detune section and Harmony octave capability made it an instant classic amongst experimental guitarists. Used by the likes of Tom Morello, Jack White and Joe Satriani for the pedal's responsive shifting power, the WH-1 is a holy grail pedal of the '90s and a crown jewel in any collection.

Featuring a diehard coated steel chassis, intuitive two-knob design of volume and boost, and a no-nonsense input/output plug setup, the Voodoo Lab Proctavia is a tribute to the classic sounds of the octave fuzz. Created after years of painstaking research on the original octavia, this iteration features hand-selected germanium diodes and transistors along with vintage-inspired circuitry for authentic tone at a fraction of the price. Whether you're chasing after Jimi's signature tones, looking for the perfect stoner rock sound, or just curious about adding an octave to your board, the Proctavia is at the ready.

The MXR M225 Custom Shop Sub Machine is a righteous octave-fuzz pedal packed with sounds from the storied past of the '60s and modern high-gain sub tones. Essentially a combination of a bypassable classic octave-down pedal and MXR's La Machine fuzz, the Sub Machine offers up sensitive, well-laid out controls in a bulletproof enclosure -- perfect for both grinding guitar leads and blown-up bass guitar sounds with a healthy dose of sub-synth funk.

The DOD Octoplus FX35 single-note octave pedal was initially released in 1986, its production lasting 8 years until its discontinuation in 1994. Though its circuitry may have been loosely based on that of the Boss OC-2, the Octoplus sports a Tone control for bass and treble that the Boss Octaver didn't have. For super quick tracking creating your suboctave notes, use the Octoplus with your neck pickup or after a boost or compression pedal.

Featuring seven pitch settings with 26 steps of pitch shifting and three delay modes with up to two full seconds of delay time, the PS-3 combines a powerful pitch shift and delay in one formidable pedal. With a wide array of blended shift/delay effects possible with a little tweaking and experimentation, this pedal is perfect for garage, psychedelia, or grunge.