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Harmony Pedals & Processors

What do harmony processors do?

Harmony processors add richness to your sound by creating fuller and more centered tones. Singing, playing guitar, or working with analog synths, a little harmony can help make your music feel bigger and more alive.

Can a harmony pedal make you sound like a full band?

Yes. If you’re performing solo but want that full-band feel, a harmony pedal is one of the fastest ways to fill out your sound. Take the BOSS VE-8 Acoustic Singer. This pedal harmonizes your voice and guitar in real time, giving you in-key harmonies as you play. Strum a chord, sing your line, and hear your hooks and choruses come to life with fresh textures and up to three-part harmony.

What sounds can harmony processors create?

From the robotic edge of a vocoder to the sonic shapeshifting of EHX’s 9 Series guitar synth emulators, harmony pedals can take your sound in nearly any direction. Looking for the octave-bending power of a Whammy pedal or the unpredictable textures of EarthQuaker Devices’ Rainbow Machine? Our Sales Engineers know the gear and can help you find the right fit for your sound.

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Photo of Boss XS-1 Poly Shifter Pitch-shift Pedal

Boss XS-1 Poly Shifter Pitch-shift Pedal

Polyphonic Pitch-shift Guitar Pedal with Balance, Shift, Toggle/Moment, and Detune Controls
$199.99
Or $34.00 suggested monthly payment§ with 6 month‡ special financing
Bundle Savings Available!
(23)
In Stock
Photo of Electro-Harmonix Pitch Fork Polyphonic Pitch Shift Pedal
$49.30 Off!

Electro-Harmonix Pitch Fork Polyphonic Pitch Shift Pedal

Polyphonic Pitch Shifter with Expression Pedal Input, Blend Control, and Buffered Bypass
$148.50
6 Month Special Financing Available‡
Learn More
Certified Open Box available for $133.65
(75)
In Stock
Photo of DigiTech Drop Polyphonic Drop-tune Pitch-shift Pedal - Red

DigiTech Drop Polyphonic Drop-tune Pitch-shift Pedal - Red

Polyphonic Drop-tune Pitch-shift Guitar Pedal with Momentary/Latching Switch and True Bypass - Red
$189.99
Or $32.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $170.99
(179)
Photo of TC-Helicon VoiceLive Play Acoustic Guitar and Vocal Effects Processor Pedal

TC-Helicon VoiceLive Play Acoustic Guitar and Vocal Effects Processor Pedal

Guitar and Vocal Digital Multi-effects Processing Pedal with Mic and Instrument Inputs, Dual XLR Outputs with Assignable Function, 1/8" Auxiliary Input, USB Connectivity, and Headphone Output
$289.00
Or $49.00 suggested monthly payment§ with 6 month‡ special financing
(143)
In Stock
Photo of DigiTech Whammy DT Drop Tuning Pedal

DigiTech Whammy DT Drop Tuning Pedal

Guitar Pitch-Shift Effect Pedal - Pitch Effects, Drop and Raised Tuning, and True Bypass
$384.29
Or $11.00/month§ with
36 month financing*
(50)
In Stock
Photo of DigiTech Whammy 5 Pitch-shifting Pedal - White, Sweetwater Exclusive
Save $50.00, Only At Sweetwater!

DigiTech Whammy 5 Pitch-shifting Pedal - White, Sweetwater Exclusive

Polyphonic Pitch-shifting Guitar Pedal with Expression Treadle and MIDI Input - White
$269.99
Or $45.00 suggested monthly payment§ with 6 month‡ special financing
(3)
In Stock
Photo of DigiTech FreqOut Natural Feedback Creation Pedal

DigiTech FreqOut Natural Feedback Creation Pedal

Feedback Creation Effects Pedal
$219.99
Or $37.00 suggested monthly payment§ with 6 month‡ special financing
(65)
Photo of DigiTech Whammy 5 Pitch-shifting Pedal - Red

DigiTech Whammy 5 Pitch-shifting Pedal - Red

Polyphonic Pitch-shifting Guitar Pedal with Expression Treadle and MIDI Input - Red
$299.99
Or $50.00 suggested monthly payment§ with 6 month‡ special financing
(57)
In Stock
Photo of Electro-Harmonix Intelligent Harmony Machine Harmony and Pitch Shifter Pedal

Electro-Harmonix Intelligent Harmony Machine Harmony and Pitch Shifter Pedal

Polyphonic Harmony Generator and Pitch Shifter with Stereo Outputs, Diatonic Harmonization, 11-position Interval Selector, Momentary Mode, and Dry-through Signal Path
$241.50
Or $41.00 suggested monthly payment§ with 6 month‡ special financing
In Stock
Photo of TC-Helicon VoiceLive 3 Extreme Guitar and Vocal Effects Processor Pedal

TC-Helicon VoiceLive 3 Extreme Guitar and Vocal Effects Processor Pedal

Vocal Effects Processor with Harmony Generator, Vocoder, Talkbox, Guitar FX, Looper, Effects Automation, and Performance Recorder
$569.00
Or $95.00 suggested monthly payment§ with 6 month‡ special financing
(69)
Photo of DigiTech Drop Polyphonic Drop-tune Pitch-shift Pedal - White, Sweetwater Exclusive
Save $30.00, Only At Sweetwater!

DigiTech Drop Polyphonic Drop-tune Pitch-shift Pedal - White, Sweetwater Exclusive

Polyphonic Drop-tune Pitch-shift Guitar Pedal with Momentary/Latching Switch and True Bypass - White
$219.99
Or $37.00 suggested monthly payment§ with 6 month‡ special financing
Bundle Savings Available!
In Stock
Photo of TC Electronic Quintessence Harmony Pedal

TC Electronic Quintessence Harmony Pedal

Harmony Generator Pedal for Guitar with TonePrint Support, MASH Footswitch, Analog-dry-through Signal Path, and Selectable Buffered/True Bypass Switching
$129.00
6 Month Special Financing Available‡
Learn More
Bundle Savings Available! Certified Open Box available for $116.10
(26)
In Stock
Photo of Electro-Harmonix Pitch Fork + Polyphonic Pitch Shift Pedal
$61.70 Off!

Electro-Harmonix Pitch Fork + Polyphonic Pitch Shift Pedal

Polyphonic Pitch Shift Guitar Effects Pedal with 2 Pitch-shifting Engines, 8 Modes, 10 Factory Presets, 100 Recallable Programs, Latch/Momentary Footswitch, User-programmable Footswitch, Expression and Foot Controller Inputs, and Main/Aux Outputs
$185.00
Or $31.00 suggested monthly payment§ with 6 month‡ special financing
(8)
In Stock
Photo of Boss PS-6 Harmonist Pedal

Boss PS-6 Harmonist Pedal

3-voice Guitar Harmony Effects Pedal with Harmony, Pitch Shifter, Detune, and S-BEND (Super Bend) Modes, Expression Pedal Controllability
$164.50
6 Month Special Financing Available‡
Learn More
Bundle Savings Available! Certified Open Box available for $139.83
(57)
In Stock
Photo of Electro-Harmonix B9 Organ Machine Guitar Effect Pedal

Electro-Harmonix B9 Organ Machine Guitar Effect Pedal

Organ/Electric Piano Emulation Guitar Effects Pedal with Onboard Modulation Processing and Optional Wet/Dry Output
$259.50
Or $44.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $233.55
(70)
In Stock
Photo of Electro-Harmonix Nano Pog Polyphonic Octave Generator Pedal

Electro-Harmonix Nano Pog Polyphonic Octave Generator Pedal

Polyphonic Octave Generator Pedal with Octave Up, Sub Octave, Dry Control, and Compact Housing
$230.40
Or $39.00 suggested monthly payment§ with 6 month‡ special financing
(23)
In Stock
Photo of Electro-Harmonix POG2 Polyphonic Octave Generator Pedal

Electro-Harmonix POG2 Polyphonic Octave Generator Pedal

Polyphonic Octave Generator for Guitar and Bass with 8-preset Memory and Attack Delay Control
$400.00
Or $67.00 suggested monthly payment§ with 6 month‡ special financing
(22)
In Stock
Photo of TC Electronic Mimiq Doubler Pedal

TC Electronic Mimiq Doubler Pedal

Doubling Effects Pedal with Stereo I/O and Controls for Tightness, Effect, Dry, and Dubs
$119.00
6 Month Special Financing Available‡
Learn More
Bundle Savings Available!
(59)
Photo of Electro-Harmonix Voice Box Vocal Harmony Machine/Vocoder

Electro-Harmonix Voice Box Vocal Harmony Machine/Vocoder

Vocal Harmony Processor/Vocoder with Nine Presets, Reverb, Formant Control, Mic Preamp, Phantom Power, and Balanced XLR Line Output
$261.20
Or $44.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $235.08
(18)
In Stock
Photo of Electro-Harmonix V256 Vocoder

Electro-Harmonix V256 Vocoder

Vocoder Pedal with Phantom-powered XLR Input, "Reflex Tune" for Pitch Correction, and Vocoder Band Adjustment from 8-256 Bands
$261.20
Or $44.00 suggested monthly payment§ with 6 month‡ special financing
(9)
In Stock
Photo of Electro-Harmonix Pico POG Polyphonic Octave Generator Pedal

Electro-Harmonix Pico POG Polyphonic Octave Generator Pedal

Polyphonic Octave Generator Guitar Effects Pedal with 3 Tone Modes
$240.00
Or $40.00 suggested monthly payment§ with 6 month‡ special financing
In Stock
Photo of Hotone Freqlux Pitch-shift Pedal

Hotone Freqlux Pitch-shift Pedal

Stereo Pitch-shift Guitar Pedal with H1, H2, H3, Preset, Mix, Select, Alt/Menu, and FX Controls, 3 Harmonized Voices, Delay, Modulation, Arpeggiator, MIDI, and USB
$249.99
Or $42.00 suggested monthly payment§ with 6 month‡ special financing
In Stock
Photo of DigiTech Whammy Ricochet Pitch Shift Pedal

DigiTech Whammy Ricochet Pitch Shift Pedal

Pitch Shift Pedal for Guitar
$199.99
Or $34.00 suggested monthly payment§ with 6 month‡ special financing
(8)
In Stock
Photo of Electro-Harmonix POG3 Polyphonic Octave Generator Pedal

Electro-Harmonix POG3 Polyphonic Octave Generator Pedal

6-voice Polyphonic Octave Generator Effects Pedal with Stereo Output, Voice Panning, Multimode Resonant Filter, 100 Presets, OLED Screen, and MIDI
$645.00
Or $108.00 suggested monthly payment§ with 6 month‡ special financing
(2)
In Stock
Photo of Keeley Octa Psi Transfigurating Fuzz Pedal with Polyphonic Pitch Shifting

Keeley Octa Psi Transfigurating Fuzz Pedal with Polyphonic Pitch Shifting

Fuzz/Octave Guitar Effects Pedal with Switchable Effect Order, Polyphonic Pitch Shifting, Up/Down/Dual Modes, Momentary/Latching, Tone Switch, and Remote/Exp Jacks
$249.00
Or $42.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $212.90
(12)
In Stock
Photo of DigiTech Mosaic Polyphonic 12-string Effect Pedal

DigiTech Mosaic Polyphonic 12-string Effect Pedal

12-string Effect Pedal for Electric and Acoustic-electric Guitars
$215.00
Or $36.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $197.99
(52)
In Stock
Photo of Eventide MicroPitch Delay Pedal

Eventide MicroPitch Delay Pedal

Delay/Pitch Effects Pedal, with Instrument/Line Level Input, Latching/Momentary Footswitch, Tap Tempo, MIDI Input, Expression Pedal Input, and 4 Bypass Options
$251.10
Or $42.00 suggested monthly payment§ with 6 month‡ special financing
(6)
In Stock
Only 9 Left
Photo of Electro-Harmonix Micro POG Polyphonic Octave Generator Pedal

Electro-Harmonix Micro POG Polyphonic Octave Generator Pedal

Polyphonic Octave Generator Pedal with One Octave Up, One Octave Down, Dry Control, and Compact Housing
$244.90
Or $41.00 suggested monthly payment§ with 6 month‡ special financing
(32)
In Stock
Photo of Electro-Harmonix C9 Organ Machine Guitar Effect Pedal

Electro-Harmonix C9 Organ Machine Guitar Effect Pedal

Organ/Electric Piano Emulation Guitar Effects Pedal with 9 Presets, Onboard Modulation Processing, and Optional Wet/Dry Output
$259.50
Or $44.00 suggested monthly payment§ with 6 month‡ special financing
(63)
In Stock
Photo of Electro-Harmonix Bass9 Bass Machine Pedal

Electro-Harmonix Bass9 Bass Machine Pedal

Bass Simulator Effects Pedal for Guitar with 9 Voices, Dry and Effect Mix Knobs, Sensitivity and Control Knobs
$259.50
Or $44.00 suggested monthly payment§ with 6 month‡ special financing
(22)
In Stock
Photo of EarthQuaker Devices Rainbow Machine V2 Polyphonic Pitch-shifting Modulator Pedal

EarthQuaker Devices Rainbow Machine V2 Polyphonic Pitch-shifting Modulator Pedal

Polyphonic Pitch-shifting Modulator Pedal with Secondary, Pitch, Primary, Magic, Tone, and Tracking Controls, and Flexi Switch
$229.00
Or $39.00 suggested monthly payment§ with 6 month‡ special financing
Bundle Savings Available!
(12)
In Stock
Photo of Electro-Harmonix Pico Pitch Fork Polyphonic Pitch Shift Pedal
$54.60 Off!

Electro-Harmonix Pico Pitch Fork Polyphonic Pitch Shift Pedal

Polyphonic Pitch Shift Guitar Effects Pedal with 10 Pitch Shift Intervals, 3 Modes, Latch/Momentary Footswitch Modes, Selectable Bypass Topology, and Power Adapter
$163.00
6 Month Special Financing Available‡
Learn More
(1)
In Stock
Only 7 Left
Photo of Electro-Harmonix Mainframe Bit Crusher Pedal

Electro-Harmonix Mainframe Bit Crusher Pedal

Bit Crusher Effects Pedal, with Bit Reduction and Sample Rate Reduction Controls, HPF/BPF/LPF Filter, Sample Rate Tuning Mode, and Expression Input
$203.20
Or $34.00 suggested monthly payment§ with 6 month‡ special financing
(2)
In Stock
Photo of DigiTech HammerOn Instantaneous Pitch-shifter Pedal

DigiTech HammerOn Instantaneous Pitch-shifter Pedal

Momentary Pitch-shifter Pedal with 27 Pitches, 3 Modes, Dry Blend, Trills, Classic/Chords Mode, and True Bypass
$219.99
Or $37.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $197.99
(3)
In Stock
Photo of Behringer BM-12 Ring Modulator Pedal

Behringer BM-12 Ring Modulator Pedal

Ring Modulation Guitar Pedal with Lo/Hi Modulator and LFO Switches and Drive, Mix, Frequency, Amount, and Rate Controls
$129.00
6 Month Special Financing Available‡
Learn More
(1)
In Stock
Photo of DigiTech Whammy 5 MonoNeon Signature Pitch Shift Pedal

DigiTech Whammy 5 MonoNeon Signature Pitch Shift Pedal

Whammy Guitar Pedal, Signature, with 3-octave Range, Hypersonic Mode, MonoNeon Customization Kit, and 5-pin MIDI In
$314.95
Or $53.00 suggested monthly payment§ with 6 month‡ special financing
In Stock
Only 5 Left
Photo of TC Electronic Mimiq Mini Doubler Pedal

TC Electronic Mimiq Mini Doubler Pedal

Doubling Effects Pedal with Controls for Tightness, Effect, and Dry
$79.00
6 Month Special Financing Available‡
Learn More
(4)
In Stock
Photo of Gamechanger Audio Bigsby Polyphonic Pitch-shifting Pedal

Gamechanger Audio Bigsby Polyphonic Pitch-shifting Pedal

Polyphonic Pitch-shifter, Vibrato, and Expression Pedal
$349.95
Or $10.00/month§ with
36 month financing*
(15)
In Stock
Only 5 Left
Photo of TC Electronic Brainwaves Pitch Shifter Pedal

TC Electronic Brainwaves Pitch Shifter Pedal

Pitch Shifter Pedal with Harmonizer, Doubler, and Octaver Functions, Mash Switch, and Switchable True/Buffered Bypass
$129.00
6 Month Special Financing Available‡
Learn More
Bundle Savings Available!
Photo of Electro-Harmonix Pico Intelligent Harmony Machine Pedal

Electro-Harmonix Pico Intelligent Harmony Machine Pedal

Harmony Guitar Pedal with Interval, Key, Mix, and Volume Control
$149.00
6 Month Special Financing Available‡
Learn More
Certified Open Box available for $134.10
(3)
In Stock
Photo of Eventide PitchFactor Harmonizer Pedal

Eventide PitchFactor Harmonizer Pedal

Stompbox 10 Signature Mono/Stereo Pitch/Delay Effects
$499.00
Or $14.00/month§ with
36 month financing*
(15)
In Stock
Photo of Electro-Harmonix KEY9 Electric Piano Machine Pedal

Electro-Harmonix KEY9 Electric Piano Machine Pedal

Electric Piano Emulation Guitar Effects Pedal with Onboard Modulation Processing and Optional Wet/Dry Output
$259.50
Or $44.00 suggested monthly payment§ with 6 month‡ special financing
Certified Open Box available for $220.58
(22)
In Stock
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What are the most popular brands for Harmony Pedals & Processors on Sweetwater.com?


What are the most popular Harmony Pedals & Processors on Sweetwater.com?


  1. Boss XS-1 Poly Shifter Pitch-shift Pedal

    23 reviews

    $199.99

  2. DigiTech Drop Polyphonic Drop-tune Pitch-shift Pedal - Red

    179 reviews

    $189.99

  3. DigiTech Whammy 5 Pitch-shifting Pedal - Red

    57 reviews

    $299.99

  4. Keeley Octa Psi Transfigurating Fuzz Pedal with Polyphonic Pitch Shifting

    12 reviews

    $249.00

  5. EarthQuaker Devices Rainbow Machine V2 Polyphonic Pitch-shifting Modulator Pedal

    12 reviews

    $229.00

Why shop Harmony Pedals & Processors at Sweetwater.com?


With a massive selection of Harmony Pedals & Processors, free shipping, a free 2-year warranty, 24/7 access to award-winning support - and more - Sweetwater gives you more than any other retailer! If you have any questions about Harmony Pedals & Processors, make sure to give your personal Sales Engineer a call at (800) 222-4700.