I am not expert and first time using voice treatment FX.
Our singer wanted reinforcement so we bought that unit to try.
I find this useless. Sound is artificial, cold, undistinctive, digital.
Might just not be my cup of tea though.
Plus: Quality built, simple to use, clear front panels even in the dark.
Note:
- my unit doesn't work at 9 V but at 6V or 7.5V.
- Phantom powers mic from the box only, you still need power/batteries to power the unit.