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TC Helicon CRITICAL MASS Studio-Quality Vocal Stompbox for Large Group-Sound Effects

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$109.00

$ 49 .99 $49.99

In Stock

About this item

  • Powerful melodic and gang styles give you large group vocals using your voice alone
  • No key or Scale to set - just sing
  • Simple three-knob control gets you up and Running in seconds
  • High-quality, low-noise mic preamp for pristine vocals with no gain to set
  • On/off Foot switch for quick performance control


A simple-to-use vocal stomp box lets you easily create stunning group-sound vocal effects in real time


JLohmann
2025-08-24 18:49:29
Fun little addition to an acoustic/solo player set up. Only hang up I have with it is that there is no volume control. There is an audible volume increase when the pedal is engaged so you will need to back off the mic a little, practice with it and it will become unnoticeable.
BC
2025-06-26 13:36:14
As a vocal compression tool with several reverb settings, this is worth the $100 I paid. Add to that the 'crowd sound' feature that can give the 'We Will Rock You' chorus sound, and it can become really useful for some songs. I had a high-pitch buzzing sound (grounding issue) with my first unit, but the vendor (SweetwaterSound) quickly sent a replacement that works with no issues.My complaint about the design is that the 'crowd-sound' feature fader is too sensitive at the 1/4 on setting. To have more fader control I split the 'crowd-sound' to a different channel and use an additional fader. It also does not come with a power supply, but a generic 9v center-negative unit works for me. I also tried the 4AA battery option which worked fine. I am just a hobbyist and use it for home recording.
Customer
2025-06-21 20:11:36
I rented this product from a local music gear rental store for over a year when I realized that I use it so much that I might as well purchase it. It has been very influential on the new sound of our latest album. I recommend.
Mike Simpson
2025-06-15 18:34:41
Tried it on a microphone. Just don’t have the sound that the one does that you plug a guitar into. I’m a bass player
Mr
2025-06-01 18:27:35
This pedal is not natural sounding enough to even be considered useful for most semi pro local bar level gigs. A fun toy for a karaoke setup or home set up. Maybe could get used sparingly integrated into a live sound mix as an effect . But it seems to not true bypass. If some musicians can make this work with their sound good for them but it’s not that high level sounding.
Dylan B
2025-05-13 14:45:14
I use the Critical Mass to add a little bit of a crowd effect for a very dead audience. I work at as high school as a technical director, and have used the Critical Mass to help urge the kids on to participate. Not very heavily like in the TC Helicon demo videos, but very subtly. This device adds a little bit of an extra body to the vocals if you have a very quiet audience.
Quality
2025-05-11 15:41:10
I can’t use it because it didn’t come with a basic power cable?!
greg Hartman
2025-05-10 11:33:28
Effects sounds good
Client d'
2025-03-18 09:52:56
Unison voice only, no harmony
Fabio
2025-01-20 17:36:20
E' molto bello aggiunge il suono e la sensazione delle voci di gruppo alle tue performance
Alex Rana
2025-01-02 12:27:33
It’s ok, although you need to adjust it properly to get the best result. Unfortunately my device after 3 days , the switching button broke so i need to push it and keep it down! I have no time to send it back so I use it like that! I didn’t push the button so firmly but I don’t know why it broke! That was my chance! But it’s really great 👍🏻
Michael Lovely
2024-12-27 15:53:10
Broke after being used 5 times no help online to troubleshoot it. Bad product not like TC Helicon
Demetrio Ferrara
2024-11-29 13:21:51
Oggetto consegnato prima del previsto in buono stato.
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