4 Best Vocal Harmonizer Pedals

You’ll already be aware of the importance that the voice, or voices, that your band has on the entirety of your music production process. The lyrics and vocals that you’re producing are the foundations, as well as the center stage feature, of each track you produce.

If you’re singing alone, with multiple band members, or simply cannot sign whatsoever, it’s so important that you consider investing in a vocal harmonizer.

Designed much like a guitar effects pedal, this pedal can be used to bring together the voices that are being used in your band, so they match and become synchronized to one another. This creates a much more bearable and beautiful tone that you and your audience are going to love.

In most cases, where you may have been trying to tweak your instrumentals to match your vocals, using an effects pedal such as these can be so much more professional and more effective.

However, if you’ve already shopped around for the best vocal harmonizer out there, you’ll already be aware of how many there are on offer and how overwhelming the entire process can be. This is where we come in. We’ve searched far and wide for the best vocal harmonizers out there, helping you effortlessly pick the one that’s right for you.

Let’s dive straight in!

TC - Helicon VoiceTone Harmony-G XT Vocal Effects Processor

#1 – TC – Helicon VoiceTone Harmony-G XT Vocal Effects Processor

To kickstart our list of best vocal harmonizers, we’ve chosen one of the most popular models in the industry which is a guaranteed approach to perfectly adapting your vocal and guitar inputs, so they become one and sound perfect side by side. In fact, this is one of the most fully-featured devices available. What helps this unit to stand out from the crowd is the fact that you can control it from your guitar.

This ensures that your vocals can match to the tone and key that you’re playing, so there are next-to-no errors whether you’re performing live, recording an album or just jamming at home in the studio. You can ‘stack’ up to three voices in total, such as your backup singers or other musicians, making this the perfect choice for bands or special guests to your productions.

Thanks to the NaturalPlay harmony algorithms that are built into this device, this entire harmonizing process happens automatically so you can focus solely on doing what you do best. However, this doesn’t mean that you don’t have control over your sounds; far from it.

Integrated into this device, you’ll find 6 reverb and delay effects, both for your guitar and vocal inputs and 10 unique and customizable presets.

Each one of these has its own A/B testing functions, so you can easily test and figure out the perfect sound that you’re looking for. There are even individual dials for adjusting the individual bass, highs, lows, mids and octave levels, enabling you to find that perfect sound.

Finally, this model has its own USB port, giving you the opportunity to download all future software updates, tips on how to use the software and manage your presets directly from your smartphone or tablet using the patented VoiceSupport App! As you can see, this multi-functional device is easily one of the best!

  • Compatible up to three voices
  • Included VoiceSupport app for preset and effect control
  • 10 effects presets with A/B testing for finding that perfect sound
  • Advanced algorithms to match vocals to guitar for the best sound
  • Only compatible with Condenser microphones (most commonly used)
  • A learning curve for first-time users

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Boss VE-2

#2 – Boss VE-2

If you’re looking for a model that’s slightly more affordable but still comes with all the features you’d expect from a leading vocal harmonizer, and a whole lot more, feast your eyes of the Boss VE-2, one of the most fully-featured harmonizing device we’ve ever seen that it’s kind of hard to know where to begin!

Much like traditional harmonizers, you simply plug in your microphones, and your guitar and the built-in algorithms will automatically evaluate your sound, matching up the chords and keys, even if this changes halfway through the song, to produce a beautiful sound tone that promises to captivate your audience.

If you’re a solo singer and you’re just planning to harmonize your voice, rather than matching it to a guitar, you can do this as well, simply using the Hybrid mode option where you can choose the desired key at the push of a button.

In this device, you’ll also have the opportunity to play with a range of effects, including Reverb and Echo, as well as an enhance button to guarantee that high-quality sound you’ve been looking for.

Within these editable settings, you’ll find more than 12 harmonizing effects, with a total of 24 different styles to choose from. These can be set automatically or manually, depending on your personal preference at the time. This unit can be powered by a battery, or using the optional AC adapter, meaning you can take it anywhere, anytime you want to play.

  • Hybrid mode for guitar and manual voice tracking
  • 24 different harmony styles to choose from
  • Reverb and Echo sound effects
  • Battery or mains powered
  • Doesn’t come with instructions
  • Poor design when on stage (unergonomic)

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Digitech VLHM Vocal Effects Processor

#3 – Digitech VLHM Vocal Effects Processor

Here are another fantastic vocal harmonizer effects pedal/processor that you’re going to love. While it’s slightly more expensive than the other pedals on this list, this is because there are simply so many features that you can enjoy and take advantage of, ensuring that this is a complete device that will enable you to create the sounds you’re looking for.

With this harmonizer, you’ll be able to stack and harmonize up to three voices in total, ensuring everybody in your band or group is harmonized to the same chord and key. This harmonization process is all thanks to the musIQ technology, which has been described as the some of the most advanced pitch detection technology in the world.

As with most harmonizer units, you can effortlessly plug in your guitar for the device to pick up its pitch and key. However, you won’t be able to set your pitch manually as you can with the Boss device above. Instead, you can enjoy the benefits that come with an integrated guitar tuner, leading double effect technologies that come with intelligent ducking and a customizable Advanced Feedback Suppression.

This setting and features contain up to 12 unique and varying filters, so you can ensure that your sound sounds exactly like you want it to. You can even loop your vocals on the device itself, up to 70 of them in fact, with unlimited overdubs! This is such an innovative feature to include on a vocal harmonizer and one that will have you thinking what you ever did without it!

  • Built-in guitar tuner
  • Supports up to three voices
  • Vocal phrase looper with unlimited overdubs
  • Advanced pitch detection technology
  • Effects can only be used on all outputs, not individually
  • No volume/gain settings
  • Supporting software isn’t supported on Windows 10

Buy at Amazon

TC-Helicon Harmony Singer

#4 – TC-Helicon Harmony Singer

Finally, to conclude our list of the four best vocal harmonizers, we’ve chosen at absolute favorite that we’re sure is going to tick all your boxes. By far one of the most popular harmonizers on the market, as well as being one of the most affordable, this little pedal comes with everything you need to create all the sounds you’ve been trying to find.

With this pedal, you’ll be able to support up to two voices, which is fewer than the other pedals above, but you’ll be able to have more control over each. This is because this pedal includes an outstanding quality Reverb effect that’s available in three different styles that will make you and the rest of your band sound superb.

What’s more, there’s even an impressive Adaptive Tone setting. This enables you to customize and fiddle with the EQ until you find the perfect settings that you’ve been looking for, control over your compression settings and the de-essing and gating of your sounds, ensuring you have all the tools you need to make it perfect.

What we really love about this harmonizer is the fact that it’s been designed to be one of the easiest to use pedals on the market and you’re sure to pick it up and learn how to use it in a matter of minutes.

With the high-quality and durable build of this device by your side, you can be sure that you’ll be enjoying the benefits of this harmonizer for many years to come.

  • Incredible, customizable EQ settings
  • Control over compression settings
  • Pristine Reverb effects
  • Affordable price tag
  • Only supports two voices
  • Needs lots of wires to function

Buy at Amazon


When it comes to finding the best tools for the job when you’re trying to make yourself sound great and in tune with the rest of your band, it’s safe to say there’s a lot of choices out there for you to look out.

However, all the vocal harmonizer pedals we’ve listed above are sure to give you the control, the response and the sound quality that you’ve been looking for, ensuring you get everything you need from these game-changing devices.