• Control your sound from subtle correction to jagged HardTune – with gender options
  • Chain it with other VoiceTone Singles to create your perfect sound
  • Mic ControlTM for remote on/off switching with the TC-Helicon MP-75 microphone


It starts with a clean, transparent correction of your voice – just set the key and go – or use the guitar input. It ends with the wildly popular pitch-gliding HardTune effect. A twist of the gender knob really gets you sounding alien with some fascinating biological choices...

Watch it Work

Singer-songwriter Christine Havrilla adds intrigue to her song with some HardTune at 1.00 & renowned vocal coach Brett Manning shows off some of the wild possibilities of C1.


It's just this simple

  • Plug in your mic, plug your pedal into the mixer & set gain.
  • Turn on the effect.
  • (That’s it.)

Of course, you can always change the style or the amount of correction, but you shouldn’t need to unfold the manual unless you’re making a fire.


Chain it.

You can chain C1 to all of the other VoiceTone Singles, mixing and matching effects to define your personal sound. It also works with Ditto Mic Looper, the pure looping pedal for singers and instrumentalists. Use the Singles Connect Kit to mix and match up to 4 TC-Helicon vocal effect pedals together conveniently, simply and with less cable clutter than ever before.

Under the hood

Beneath the sturdy, die-cast metal case, you’ll be getting the same quality processing you’d expect from our flagship VoiceLive® vocal processors. You’ll also find a clean, quiet mic preamp that rivals high-end touring mixers & studio quality analog to digital conversion. There’s even a USB connection for firmware updates.



  1. Simple guidance of pitch correction with key, chromatic or guitar input.
  2. Control your attack from subtle correction to jagged HardTune.
  3. Adjust your vocal biology from male/deep gender to alien female.
  4. Dedicated on-off footswitch. C1 Also comes with USB connection for updates.

More Mic, more control

Roam the stage while completely controlling C1 from your mic. Simply plug in an MP-75 microphone or the Sennheiser e835 FX. We call it Mic Control™ and because of it, you command both the stage and the audience.

Ready to Enhance your sound?

What They Say...

"TC-Helicon is pioneering the way with vocal pedals – C1 gives you nice subtle changes as well as dramatic effects. I’m really impressed with its high quality, studio-sounding effects for my music."


"I use this to continually to produce my live sound. Great product and one SOLID piece of equipment. It’s definitely built very ruggedly: to actually get 'stomped on'."

-Customer, USA

"These pedals are extremely easy to use and, for the most part, you don’t even need to open a manual. Just plug in your mic, connect to your mixing board, and you’re ready to sing with studio quality vocal processing."

-Celebrity Vocal Coach Jeannie Deva

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