It is possible to add 4 additional voices to yours.
And inserting or not the common effects such as reverb, delay, compressor .....
They can not be edited on a PC
That rack as shown in photo.
It's digital, and I use a MIDI Controller Keyboard or synth, which instantly captures my left hand agreements to grant the following additional voices such agreements. It is truly the ball and bluffing.
Everything is simple, manual, programming on the screen and AC Bonton full of useful and sometimes redundant.
Sufficient sound quality for voice added, often back from the lead voice.
Small defect but is perhaps not the machine, probably comes from my settings: the microphone picks up more votes and buckle with the camera!
It is in this case set the sensitivity of the helicon, but if it drops too low the unit does not recognize your voice and do not react quickly enough. I appercu with a micro arena type Senheiser E865 AC Needless bp, but with a studio microphone you have to work with headphones (this is normal too).
EXCELLENT TO headphone
I do not know how long I use (4 or 5 years).
it is a very good complement, now the sound quality of Harmonizers is perhaps higher but I keep my helicon because this quality is sufficient for me.
No pb to make the election again.